Forest Trees of Texas: How to Know Them
Author: Wilbur R. Mattoon; C. B. Webster
Date: 2016-07-26T00:00:00+00:00
Keywords: Trees -- Texas; Trees -- Identification

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Title: Forest Trees of Texas: How to Know Them

Author: Wilbur R. Mattoon

C. B. Webster

Editor: John A. Haislet

Release date: July 26, 2016 [eBook #52651]
Most recently updated: October 23, 2024

Language: English

Credits: Produced by Stephen Hutcheson, Dave Morgan and the Online
Distributed Proofreading Team at http://www.pgdp.net

*** START OF THE PROJECT GUTENBERG EBOOK FOREST TREES OF TEXAS: HOW TO KNOW THEM ***

Forest Trees of Texas
How To Know Them

Eighth Edition
Ninth Printing
October, 1990

TEXAS FOREST SERVICE
A PART OF
THE TEXAS A&M UNIVERSITY SYSTEM
COLLEGE STATION, TEXAS

BULLETIN 20 APRIL, 1963

CROWN

TRUNK

HEARTWOOD (INACTIVE) GIVES STRENGTH

SAPWOOD CARRIES SAP FROM ROOT TO LEAVES

CAMBIUM (MICROSCOPIC) BUILDS THE CELLS

INNER BARK CARRIES PREPARED FOOD FROM LEAVES TO CAMBIUM LAYER

OUTER BARK PROTECTS TREE FROM INJURIES

ROOTS
SURFACE ROOTS
TAPROOT

Tree increases each year in height and spread of branches by adding on new growth of twigs

Air supplies carbon the principal food of the tree taken in on under surface of leaves.

Leaves prepare the food obtained from air and soil and give off moisture by transpiration. Light and heat are necessary for the chemical changes

The breathing pores of the entire tree,—on leaves, twigs, branches, trunk and roots take in oxygen. Flooding, poisonous gases, or smoke may kill a tree

Root tips or root hairs take up water containing small quantity of minerals in solution

The buds, root tips, and cambium layer are the growing parts of the tree. Water containing a small quantity of minerals in solution is absorbed by the roots, carried up through the sapwood to the leaves and there combined with carbon from the air to make food. This food is carried by the inner bark to all growing parts of the tree, even down to the root tips

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ACKNOWLEDGMENTS

The first edition of Forest Trees of Texas—How to Know Them was assembled by W. R. Matoon and C. B. Webster in 1928. The sections, “Trees as Mankind’s Friends”, “Studying a Tree”, “Other Texas Trees”, drawings of twigs, leaves and fruits, and the glossary were incorporated into the fourth and fifth editions by S. L. Frost and D. A. Anderson. The sixth and seventh editions were edited by H. E. Weaver and W. A. Smith, respectively. Some of the drawings used in this publication were made available by the United States Forest Service.

The eighth edition was revised and edited by John A. Haislet to conform with the nomenclature in Check List of Native and Naturalized Trees of the United States (Including Alaska), Agriculture Handbook No. 41, prepared under the direction of the United States Forest Service Tree and Range Plant Committee. D. A. Anderson’s “A Guide to the Identification of the Principal Trees and Shrubs of Texas” was revised and incorporated in the eighth edition to give it greater utility to the non-technical student of trees.

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TREES ... MANKIND’S FRIENDS

Trees have held an important place in man’s way of life since he has been on the earth. Trees provided early man with weapons to defend himself and helped provide him with food, shelter and fuel.

Trees have played an important role in the history of the United States. Timber was our nation’s first export. The forest also provided our forefathers with their homes, farm implements, rifle stocks and wagons. The forest, by furnishing ties and utility poles, made possible the expansion of railroad systems, electric power and telephone networks. Every industry depends upon forest products in one way or another.

Trees are more important today than ever before. More than 10,000 products are reportedly made from trees. Through chemistry, the humble woodpile is yielding chemicals, plastics and fabrics that were beyond comprehension when an axe first felled a Texas tree.

The American standard of living depends to no small extent on the care with which we use our forest resource. Fortunately, trees are a renewable resource. They can be grown as a crop and harvested in such a way that the stand is kept productive, and a steady supply of forest products is assured.

TEXAS TREES

A tree is generally defined as a woody plant having one well-defined stem and a more or less definitely formed crown, usually attaining a height of at least eight feet. Using water and minerals from the soil, gases from the air and energy from the sun, a tree manufactures the food it needs for growth and reproduction. Trees, like man, grow rapidly when they are young but gradually their growth decreases; they begin to deteriorate and eventually die. Nature then reduces them to the elements from which they were derived.

The terms “hardwood,” “softwood,” “deciduous” and “non-deciduous” are often encountered in tree literature. These terms are confusing and often misleading. Needle-bearing or cone-bearing trees are designated as softwoods even though the wood may be dense. Hardwoods are the broad-leaved (unlike needles or scales) trees, the wood of which may be dense or soft.

The conifers, or softwoods, generally retain their leaves more than one growing season and produce seed in cones; 4 however, there are exceptions. Baldcypress, a conifer, is deciduous since it sheds its leaves in autumn. Cedar and juniper produce berry-like cones that scarcely resemble cones.

The hardwoods, or broad-leaved trees, are generally deciduous; i.e., they shed their leaves in autumn. Texas has many exceptions, for example: southern magnolia, live oak and American holly which retain green leaves through the winter.

More than half of the 1,100 species of native trees in the United States are found in the South. Of these, more than 200 species and varieties are native to Texas. In addition, many exotic species have been introduced and now grow in many parts of the state.

The four main forest regions of Texas include: the Southern pine forest in East Texas; the central hardwoods, the post oak and cross timbers of North-central Texas; the semi-tropical forest in the Rio Grande Valley region of Texas; and the mountain forest, the timbered areas of West Texas which are a continuation of the timber types of the Southern Rocky Mountains. In Texas, trees are the principal vegetative cover on an estimated area of 28,805,617 acres.

TREE REGIONS

PINE-HARDWOOD

CEDAR BREAKS

POST OAK

WEST CROSS TIMBERS

EAST CROSS TIMBERS

MOUNTAIN FORESTS

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Texas also has minor tree areas which are almost restricted to Texas; the cedar breaks and the oak shinneries. Some of the shinnery trees are among the smallest in America. In places, fully matured trees are not over knee-high and resemble pigmy forests. In other areas, the same species grows 20 to 30 feet tall to form almost impenetrable thickets.

The pine-hardwood forests of East Texas, comprise 12,525,417 acres in all or part of 42 counties. Lumber, paper, baskets, boxes, ties, poles, piling, posts, handles and shingles constitute the main forest products manufactured in the Piney Woods of East Texas.

Farther west, in East Central Texas, the post oak forests cover approximately 5,030,200 acres in all or part of 39 counties.

The east and west “cross timbers”, occur on an area of approximately 3 million acres. The term “cross timbers” originated with the early settlers who, in their travels from east to west, crossed alternating patches of forests and prairies and so affixed the name “cross timbers” to these forests.

Farther south in the Edwards Plateau region, are the cedar breaks which extend over 3¾ million acres. Cedar grows on the steep slopes and rolling hills common to this region, in association with live oak and mesquite.

Other tree areas of the state include an estimated 500,000 acres of mountain forests in the Trans-Pecos Region and the live oak area along the Gulf Coast.

Two of Texas’ trees, guaiacum and ebony, produce the hardest woods in the United States. Both species are found in the Rio Grande Valley. The tree with the lightest wood in the United States, corkwood, grows near the mouth of the Brazos River. Drooping or weeping juniper, so named for the drooping characteristic of its branches, grows in the Big Bend area but has not been reported to be native elsewhere in this country.

Catclaw, huisache, mimosa, baretta, pistache, black persimmon, Mexican ash, anaqua, flatwoods plum (sloe) and guajillo are other trees common only in Texas.

TEXAS FOREST SERVICE

In 1915, the 34th Texas Legislature created by law the State Department of Forestry and made it a part of the Agricultural and Mechanical College of Texas. In 1925, the department became the Texas Forest Service. As it grew, its service to Texas increased. It now helps protect Texas’ forest resources against fire, insects and disease; assists woodland owners in the proper management of their lands; makes available seedlings for reforestation and windbreak purposes; conducts 6 research in forest tree improvement, management and utilization; and conducts an educational program to acquaint Texans as to the desirability of practicing forestry.

The Texas Forest Service, with more than 300 employees, has four departments: Forest Fire Control, Forest Management, Forest Products, and Information and Education. The offices of the Director, and of the Forest Management and the Information and Education Departments are in College Station. Forest Fire Control and Forest Products Department headquarters are in Lufkin.

Seven administrative districts, each headed by a district forester, are responsible for the activities of the Texas Forest Service in the areas of intensive and extensive forest fire protection. District headquarters are located at Linden, Henderson, Lufkin, Woodville, Kirbyville, Conroe and College Station.

More than 10 million acres of state and privately owned timberland in the Piney Woods are now under intensive protection against fire, insects and diseases. An additional area of 5 million acres, commonly referred to as the post oak region, west of and adjacent to the pine-hardwood area, has been under extensive protection beginning with 1962.

TEXAS FORESTRY ASSOCIATION

The Texas Forestry Association is a statewide, nonprofit agency concerned primarily with the educational phase of forest conservation. Organized in 1914, the Association was largely responsible for the passage of the law which created the Department of Forestry at the Agricultural and Mechanical College of Texas, and from which the Texas Forest Service emerged.

For more than 48 years, this organization has cooperated with the Texas Forest Service and other interested agencies in promoting the forest economy of Texas. Membership in the Texas Forestry Association is open to all conservation-minded citizens.

ARBOR DAY

The growing dependency of man upon forest resources for raw materials, products, watershed protection, conservation of certain wildlife and recreation gives added significance to Arbor Day which is set aside annually to pay tribute to trees.

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Arbor Day originated in Nebraska in 1872. It was first celebrated in Texas in 1889 on George Washington’s birthday, February 22. In 1949, the Texas State Legislature adopted the following resolution:

Resolved, by the House of Representatives of the State of Texas, the Senate concurring, That the third Friday in January of each year be designated as “Arbor Day”, to be devoted to the planting and cultivation of forest, shade and ornamental trees throughout the State and to be observed for that purpose in such manner as may seem best to the people of each community; and be it further

Resolved, That the Governor of Texas be requested to issue an appropriate proclamation annually to encourage the proper observance of such “Arbor Day”.

Arbor Day can best be celebrated by planting one or more suitable trees around a school or club area or by establishing a school plantation. In addition to paying tribute to the beauty of trees, one can call attention to the importance of trees to man’s welfare. The Texas Forest Service continues to assist clubs and schools in organizing Arbor Day programs.

STATE TREE

The pecan, Carya illinoensis, (Wangenh.) K. Koch, was officially designated as the state tree of Texas by an act of the legislature in June 1919.

By an amendment in 1927, certain state agencies were requested to give due consideration to the pecan tree when beautifying state parks and other public property belonging to the state.

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STUDYING TREES

Trees, like people, become friends only when we have become well acquainted with them and have a knowledge of the characteristics that make them something special to us. This bulletin about the trees of Texas may be used as a handy reference for identifying trees you do not know, or it may be used as the basis for developing tree friends. The following is a guide or lesson plan that will help make a friend of each tree studied.

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I. Object of Study

Each kind of tree has certain identifying characteristics which mark it as being different from other kinds of species of trees. By careful observation and examination these identifying points may be learned and you can feel that you know the tree.

II. Source of Study Material

1. The locality in which you live probably has some trees you know. Why do you know them? Start by studying these trees and make them fast friends.

2. You also will find some trees you are not sure about or do not know; next, study these one by one until you are sure you will always know them.

3. Wherever you may be or whenever you see a tree you do not know, observe it carefully, collect enough facts and sample material to study until you learn to know it.

4. Books, articles, pictures and references will help to learn some trees you cannot actually see but which are of interest to you.

III. Approach to Tree Study

1. One tree should be studied at a time as a general rule although it may be an advantage to select somewhat similar trees and study them by comparisons.

2. Field study of the growing tree is the most satisfactory. Observe a number of the same kind of trees as there are individual variations in some characteristics.

3. If possible collect for reference and further study samples of leaves, twigs, bark, wood, flowers and fruit. BE CAREFUL in collecting samples. It is better not to have samples than to deface or injure the tree. No one will object to your studying their trees if you do no damage.

IV. Procedure

1. General

(a) First observe the tree as a whole taking into consideration all the points that attract your attention. Very often there will be some one thing that either alone or in relation to other points attracts your attention. That feature when studied may be the key to your really learning to know the tree.

(b) The suggestions that follow as to observations of various parts of the tree do not limit the study of those points for perhaps you will learn to know the tree from some feature not listed.

2. Form of tree

Note the size, shape and branching habit; observe its location in relation to other trees that might affect its form.

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3. Bark

Observe thickness, roughness, type of fissures and color of bark. Studying the bark as a means of winter identification is particularly worthwhile.

4. Leaves

Study type, size, shape and variations on the same tree; note arrangement on twigs; describe by the blade, stalk, margin, venation, base and tip; know their texture and color.

5. Twigs

Note lateral arrangement on branches; observe whether flexible or stocky and whether rough or smooth; study differences between new growth and old; learn any distinctive color, smell, or taste; cut a cross-section and note size, shape, color and size of pith; note presence or absence of lenticels.

6. Buds

Like bark, the buds are helpful in winter identification. Note size, scale coverings, and shape. Observe arrangement and position on twigs; compare terminal and lateral buds.

7. Leaf-scars

Study scars left by falling leaves as to size, form, position and occurrence; note bundle-scars (appear as marks in scar) as to number, shape, size, and arrangement.

8. Flowers

Study promptly at proper season; trees vary widely in flowering habits; observe as to size, form, shape of parts, color and arrangement; and learn whether the tree has one or two kinds of flowers—if two, whether male and female flowers are on same tree.

9. Fruit

Study of fruit also is seasonal. When it is available, observe type, form, structure and method of distribution.

10. Wood

Identification of trees by wood forms a separate study but often field identification of trees can be aided by observation of distinctive points about the wood such as color, taste and general structure.

11. Habitat

An interesting and often useful help in tree identification is to note the growing habits of trees, whether in dry or moist places, what other species same type sites, whether it grows better in open places or in more sheltered locations and the like.

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V. Summary

If you have followed through on your study of a tree, covering the eleven points listed, you will really know the tree for all time. However, even if you cannot or do not make your study as thoroughly as is suggested, you should at least select enough distinctive characteristics about the tree to study that you will be able to identify it both in the summer and the winter seasons.

VI. References

Your school and public library should have one or more books on trees. You will find books on southern trees most helpful. While it is impractical to provide a complete list of books on trees, the partial list below is furnished for your information, with the understanding that no discrimination is intended:

Fernald, M. L. Gray’s Manual of Botany. Eighth edition. American Book Company, 1950.

Green, C. H. Trees of the South. The University of North Carolina Press, 1939.

Harrar, E. S., Harrar, J. G. Guide to Southern Trees. Whittlesey House, 1946.

Kearney, T. H., Peebles, R. H. Arizona Flora. University of California Press, 1951.

Sargent, C. S. Manual of the Trees of North America. Second Edition. Houghton Mifflin Co., 1922 (at Project Gutenberg).

Vines, R. A. Native East Texas Trees. Houston Museum of Natural History, 1953.

Vines, R. A. Trees, Shrubs and Woody Vines of the Southwest. The University of Texas Press, 1960.

Cross Section of the Trunk of an Oak Tree.

A. Cambium

B. Inner bark

C. Outer bark

D. Sapwood

E. Heartwood

F. Pith

G. Ray

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TWIG FEATURES

Terminal Bud

False Terminal Bud

Twig Scar

Bud Scales

Superposed Bud

Lateral Leaf Buds

Bundle Scar

Flower Bud

Leaf Scars

Lenticel

Stipule Scar

Terminal Bud Scale Scars

Pith
Chambered
Solid

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TWIGS AND LEAVES

TYPES OF TWIG BRANCHING

Alternate
Whorled
Opposite

LEAF TYPES

Simple
Compound
Doubly Compound
Opposite Leaves
Alternate Leaves
Awl-Shaped Needles
Pine Needles
Scale-like Needles

PARTS OF LEAF

Lamina or blade
Base
Stem
Apex
Leaf margin
Primary vein
Secondary or lateral veins

Petiole (Sessile leaves have no petiole but are attached directly to the stem)

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LEAF SHAPES

LEAF FORMS

Lanceolate
Ovate
Obovate
Star-shaped
Linear or Rectangular
Heart-Shaped or Orbicular
Oval
Elliptical
Deltoid

LEAF APEXES

Acuminate
Acute
Obtuse
Truncate
Bristle Pointed
Rounded

LEAF MARGINS

Entire
Dentate
Toothed or Serrate
Sinuate or Wavy
Doubly Serrate
Lobed
Incised

LEAF BASES

Wedge-Shaped or Cuneate
Oblique or One-Sided
Rounded
Heart-Shaped or Cordate
Truncate or Square

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THE COMPLETE FLOWER

Stamen
Anther
Filament
Sepal

Receptacle

Petal

Pistil
Stigma
Style
Ovary
Peduncle

Sepals collectively designated as calyx.

Petals collectively designated as corolla.

The ripened ovary comprises the fruit.

Ripened ovules of the ovary comprise the seed of the fruit.

A flower lacking either calyx, corolla, stamens, or pistil is an incomplete flower. If the male and female flower parts occur in separate flowers on the same tree the species is said to be monoecious. If the male and female flowers occur on separate trees, the species is said to be dioecious.

FLOWER CLUSTERS

Spike

Catkin or ament

Cylindrical cyme

Flat-topped cyme

Raceme

Panicle

Corymb

Umbel

Compound umbel

Head

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COMMON TYPES OF FRUITS AND SEEDS

Acorn (Oak)

Multiple Fruit (Mulberry)

Nuts in Prickly Bur (Beech)

Drupe (Cherry)

Pod (Locust)

Samara (Elm)

Samara (Ash)

Samara (Maple)

Cone (Pine)

Hairy Seed (Willow)

Nuts in Bladder-Like Bracts (Hophornbeam)

Berry (Persimmon)

Nut in Husk (Hickory)

A Nut-Like Drupe (Basswood)

Drupe (Hackberry)

Winged Seed (Pine)

Multiple Fruit—Achene Enlarged (Sycamore)

Nuts in Spiny Bur (Chinkapin)

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Texas Trees

LIMBER PINE (Rocky Mountain White Pine)
Pinus flexilis var. flexilis James

Limber pine is abundant in the Rocky Mountains and in scattered areas over much of the West. In Texas, limber pine may be found in the Guadalupe and Davis Mountains of West Texas.

As the name indicates, the branches and twigs are especially flexible and tough, often light purple in color. The branches form a rounded tree top or head. The trunk is stout and noticeably tapered.

The needle-like LEAVES are in clusters of five. They are stiff and stout, about 2 to 3 inches long, and arranged in clusters or tufts near the ends of the branches. They stay on the twig for five or six years.

LIMBER PINE (Fruit and leaves, one-third natural size)

The “FRUIT”, a cone, is relatively short or stocky, mostly from 3 to 6 inches long, made up of rounded rather thick scales, some turned forward and some backward. The cone is short-stalked. As with all the pines, the seeds mature at the end of the second season of growth.

The WOOD is relatively soft, close-grained, slightly yellowish or reddish. It is not cut in quantity and the trees are usually rather limby and short-bodied, which largely accounts for the small commercial use.

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PINYON (Nut Pine)
Pinus edulis Engelm.

Pinyon is found as scattered trees or in small groves over the mountains and canyons in the western part of the state to elevations of 8,000 feet. It is a small tree, grows on warm slopes or in sheltered locations, and forms a bushy top with orange-colored branchlets.

The needle-like LEAVES grow in bundles of two (rarely 3); whereas in Pinus cembroides Zucc., the Mexican Pinyon, there are usually three needles per cluster. The dark green needles are approximately one inch long, stiff, stout, and curved. They remain on the tree from 5 to 8 years.

PINYON (Natural size)

Like all the pines, it has male and female “FLOWERS” separate on the same tree. The “FRUIT”, a cone, is rounded, about 1 to 2 inches across, and produces large seeds or “nuts”, from ½ to ¾ inch long. The seeds are rich in food value and form an important article of diet for the Indians. The seeds are gathered and sold widely as fancy “nuts” in many larger towns and cities.

The WOOD is light, soft, close-grained, and pale brown, used for fuel and sometimes as fencing. A close relative P. cembroides is found scattered in the Texas cedar breaks.

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PONDEROSA PINE (Western Yellow Pine)
Pinus ponderosa Laws.

Ponderosa pine is the most important commercial pine of the Southwest and many parts of the Rocky Mountain region. It reaches the southeastern limit of its range in the Guadalupe and Davis Mountains of West Texas where it is scattered and of little commercial value. It is favored as an ornamental in the Texas Panhandle.

PONDEROSA PINE (Fruit and leaves, one-half natural size)

The needle-like LEAVES are in bundles of three and are mostly 5 to 8 inches long. The needles, massed toward the ends of naked branches, remain on the tree about 3 years.

The “FRUIT”, a short-stalked cone, is oval-shaped, reddish-brown, and armed with stout recurved prickles.

The WOOD of this species, from trees in the commercial part of its range, is of excellent quality for lumber. The wood is hard, strong, and rather fine grained. The heartwood is light reddish-white and the sapwood nearly white. Lumber from this tree is widely used for house construction and furniture.

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LOBLOLLY PINE
Pinus taeda L.

This fast-growing yellow pine is the most abundant and valuable species in Southeast Texas from Orange County west to Walker and Waller Counties. The species is also abundant northward to the Oklahoma line. Loblolly pine also constitutes the pine of the “Lost Pine Region” in the vicinity of Bastrop.

LOBLOLLY PINE (Fruit and leaves, one-half natural size)

Loblolly invades abandoned fields rapidly. For this reason it is often called old field pine. In the virgin forest of Texas, loblolly pine was most common along banks of streams. It is still the dominant pine on moist sites, but may also be found in relatively dry sites.

The dark-colored BARK is deeply furrowed and often attains a thickness of as much as 2 inches on large-sized trees. The needle-like LEAVES, 6 to 9 inches long, are borne three (occasionally two) in a cluster. In the spring bright green clumps of needles grow at the end of branches and give the tree a luxuriant appearance. The “FRUIT”, a cone, ripens in the autumn of the second year and is 3 to 5 inches long. Many seeds with wings an inch long are shed during the fall and early winter.

The resinous WOOD is coarse-grained. There is marked contrast, as in other yellow pines, between the bands of springwood and summerwood. The wood of second-growth trees has a wide range of uses such as building material, box shooks, barrel staves, basket veneers, pulpwood, lath, mine props, piling, and fuel.

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SHORTLEAF PINE (Yellow Pine)
Pinus echinata Mill.

Shortleaf pine is an important pine over a wide area in Northeast Texas, and is common in other parts of the “Piney Woods.” Essentially a tree of the hilly section, growing in pure stands and in mixture with hardwoods, the mature tree has a tall straight stem and an oval crown, reaching a height of about 100 feet and a diameter of about 2½ feet. Unlike other southern pines, young shortleaf pine trees may reproduce by sprouts when cut or burned back.

SHORTLEAF PINE (Fruit, natural size; leaves, two-thirds natural size)

The BARK is brownish-red, broken into rectangular plates; it is thinner and lighter-colored than that of loblolly pine.

The needle-like LEAVES are in clusters of two or three (3 to 5 inches long), slender, flexible, and dark blue-green. The “FRUIT”, a cone, or bur, the smallest of the Texas pines, are 1½ to 2½ inches long, oblong, with small sharp prickles; are generally clustered, and often hold to the twigs for 3 or 4 years. The small mottled seeds have a wing which is broadest near the center.

The WOOD of old trees is rather heavy and hard, yellow-brown or orange, fine-grained, and less resinous than that of the other important Southern pines. It is used for finishing, general construction, veneers, paper pulp, excelsior, cooperage, mine props, and other purposes.

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LONGLEAF PINE
Pinus palustris Mill.

Young longleaf pine with its single upright stem, candle-like silvery buds, and long, shiny leaves form a handsome tree. In later youth the stalwart, sparingly-branched sapling, with heavy twigs and gray bark, attracts immediate attention. Mature trees have tall, straight trunks, 1-3 feet in diameter and open irregular crowns.

Longleaf pine grows in sandy soils from Orange County, north to Sabine County and west to Trinity County. A hybrid cross between longleaf and loblolly pine is often found in this range and is known as Sonderegger pine.

LONGLEAF PINE (Fruit and leaves, one-third natural size)

The needle-like LEAVES are grey-green, from 10 to 15 inches long, in clusters of three, and gathered toward the ends of the thick, scaly, twigs. The “FLOWERS”, appearing in early spring before the new leaves, are a deep rose-purple, the male in prominent, short, dense clusters and the female in inconspicuous groups of two to four. Unlike other Southern pines, common to Texas, this species grows in a “grass” stage for 2 to 5 years during which time it resembles a clump of grass. Once longleaf pine starts its height growth, it grows rapidly.

The “FRUIT”, a cone bur, is 6 to 10 inches long, and slightly curved, the thick scales armed with small curved prickles. The cones usually fall soon after the seed ripens, leaving their bases attached to the twigs.

The WOOD is heavy, hard, strong, tough and durable. It is used for construction. Naval stores such as turpentine and rosin are obtained from the tree.

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SLASH PINE
Pinus elliottii var. elliottii

Slash pine is not a native of Texas, its natural range in the United States being along the coast from South Carolina to eastern Louisiana. The initial planting of slash pine in East Texas was made on the E. O. Siecke State Forest near Kirbyville in 1926. It has been widely planted in East Texas, and has been so successful in its growth and adaptability to the region that it is now accepted as a forest tree of the State. It is much favored for reforestation by planting because of its exceedingly rapid height growth, good survival, and comparative freedom from tip-moth damage.

SLASH PINE (One-half natural size)

In its native habitat a mature tree ranges to 100 feet high, with a roundtopped head and a trunk 1 to 3 feet in diameter.

The BARK ranges in thickness from ¾ to 1 inch, separating freely on the surface into large thin scales.

The needle-like LEAVES occur in clusters of 2 and 3, are from 8 to 12 inches long, and lustrous. The “FLOWERS” appear in late winter, the male dark purple, the female pink, the “FRUIT”, a cone usually 4 to 6 inches long, is brown and glossy, the thin scales armed with fine prickles.

Slash pine WOOD is exceedingly hard, very strong, durable, coarse grained, rich, dark orange color, with thick, nearly white sapwood. In this respect it is similar to longleaf, being sold as such, and used for the same purpose. Naval stores, lumber, pulpwood and other products can be produced from this tree.

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DOUGLAS-FIR
Pseudotsuga menziesii var. glauca (Belssn.) Franco

This valuable timber tree of the western United States reaches its extreme southeastern limit in the mountains of West Texas. It is a small tree locally but in the Pacific Northwest Douglas-fir reaches a height of 250 feet and a diameter of 10 to 12 feet.

The needle-like LEAVES are linear, more or less flattened, about an inch in length, bluish green, and arranged closely in spirals around the stem. They remain on the twigs for many years. The buds are a rich reddish-brown and pointed.

DOUGLAS-FIR (Fruit and leaves, one-half natural size)

The “FRUIT”, a cone, unlike that of true firs, hangs downward and is easily identified by the protruding bracts, or “straws.” The mature cones are 2 to 4 inches long, and brownish-red.

The WOOD is moderately light, reddish tinted and surrounded by nearly white sapwood. It varies widely in respect to density, quality and width of sapwood. Much high grade plywood is made from this species. Young Douglas-firs are sold as Christmas trees.

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BALDCYPRESS
Taxodium distichum (L.) Rich.

Baldcypress grows in swamps which are flooded for prolonged periods, and on wet stream banks and bottomlands. It occurs in East Texas west to the Nueces River. The straight trunk has numerous ascending branches, and narrow conical outline. In old age the tree generally has a broad fluted, or buttressed base, a smooth slowly tapering trunk and a broad, open, flat top of a few heavy branches and numerous small branchlets. Virgin-growth timber attains heights up to 130 feet and diameters up to 10 feet.

BALDCYPRESS (Cone and leaves, seven-eighths natural size)

The BARK is silvery to cinnamon-red, finely divided by numerous longitudinal fissures. The light green LEAVES about ½ to ¾ inch long, are arranged in feather-like fashion along two sides of small branchlets which fall in the autumn with the leaves still attached.

The “FRUIT”, a rounded cone, is about one inch in diameter, with thick irregular scales.

The WOOD is light, soft, easily worked, with a light sap wood and dark-brown heartwood. It is particularly durable in contact with the soil. Cypress is in demand for exterior trim of buildings, greenhouse planking, boat and ship building, shingles, posts, poles, and crossties.

26

ASHE JUNIPER (Mexican Juniper--Mountain Cedar)
Juniperus ashei Buchholz

In Central and West Texas are found no less than nine species of cedars or junipers, including one eastern, one southern, and seven western species. Of these, the most abundant and important is the Mexican juniper. This tree often forms extensive low forests or dense breaks on the limestone hills and slopes of the Edwards Plateau and Grand Prairie.

ASHE JUNIPER (Berry-like fruit and leaves, two-thirds natural size)

The trunk is covered with shreddy, brown or reddish-brown BARK. The LEAVES are dark blue-green, small, opposite or arranged in 3’s, scale like, blunt pointed, and fringed with minute teeth. On vigorous young plants the leaves are sharp pointed and longer, up to ½ inch long.

The “FRUIT”, a nearly round, dark blue, berry-like cone is covered with glaucous bloom; has a thin, pleasant-scented, sweet flesh, enclosing 1 or 2 seeds; and ripens in one season.

The WOOD is light, hard, light brown, close-grained but weak. It is extensively used for fence posts and fuel. The tree is sometimes planted as an ornamental.

27

EASTERN REDCEDAR
Juniperus virginiana L.

Redcedar is scattered through East Texas, usually on gravelly ridges and rocky hillsides of the uplands.

There are two kinds of LEAVES, usually both on the same tree. The most common is dark green, minute, and scale-like, clasping the twig in four ranks, so that the twig appears square. The other kind, usually appearing on young growth, or vigorous shoots, is awl-shaped, quite sharp-pointed, spreading, and whitened.

The BARK is thin, reddish-brown, turning ashy-gray on exposed surfaces, and peels off in long shred-like strips. The trunk is usually more or less grooved.

The male and female FLOWERS blooming in February or March, are at the end of minute twigs on separate trees.

The “FRUIT” which matures in one season is pale blue, ¼ inch in diameter, and berry-like, the sweet flesh enclosing one or two seeds.

EASTERN REDCEDAR (Fruit and leaves, three-fourths natural size)

The HEARTWOOD is distinctly red, and the sapwood white, this color combination making very striking effects when finished as cedar chests, closets, and interior woodwork. The wood is aromatic, soft, strong, and of even texture, very durable in contact with the soil, and in great demand for posts, poles, and rustic work.

Since redcedar spreads the cedar-rust of apples, it is inadvisable to plant this tree in or near orchards, or anywhere in regions devoted to commercial apple production.

28

BLACK WALNUT
Juglans nigra L.

This valuable forest tree occurs on rich bottomlands and moist fertile hillsides as far west as the San Antonio River. It may attain a height of nearly 100 feet with a straight stem, clear of branches for half of its height.

The BARK is thick, dark brown in color, and divided by rather deep fissures into rounded ridges.

The LEAVES are alternate, compound, 1 to 2 feet long, consisting of from 15 to 23 leaflets of a yellowish-green color. The leaflets are about 3 inches long, extremely tapering at the end, and toothed along the margin.

BLACK WALNUT (Leaf, one-fifth natural size; fruit, one-fourth natural size; twig, about natural size)

The FRUIT is a nut, borne singly or in pairs, and enclosed in a solid green husk which does not split open, even after the nut is ripe. The nut itself is black with a very hard, thick, finely ridged shell, enclosing a rich, oily, edible kernel.

The HEARTWOOD is heavy, hard and strong. Its rich chocolate-brown color, freedom from warping, and checking, susceptibility to a high polish, and durability make it highly prized for furniture and cabinet work and gunstocks. Walnut is easily propagated from the nuts, and should be more widely planted and grown for timber and nuts.

LITTLE WALNUT or TEXAS WALNUT (Juglans microcarpa Berlandier) is found on limestone banks of streams in western Texas. The stumps supply a beautiful veneer.

29

PECAN
Carya illinoensis (Wangenh.) K. Koch

Pecan, the “State tree” of Texas, is found native in the state from the Piney Woods west throughout Central Texas, centering in the watershed of the Colorado River. It makes an excellent shade tree and is very valuable for the nut crop it bears. Many varieties are planted in orchards. The pecan is a tall-growing tree, attaining heights of over 100 feet. When grown in the open it forms a large, rounded, symmetrical top.

The outer BARK is rough, hard, tight, but broken into scales; on the limbs it is smooth at first but later tends to scale or divide as the bark grows old.

The LEAVES resemble those of the other hickories and the black walnut. They are made up of 9 to 17 leaflets, each oblong, toothed and long-pointed, and 4 to 8 inches long by about 2 inches wide.

PECAN (Leaf, one-sixth natural size; fruit, one-third natural size)

The FLOWERS appear in early spring and hang in tassels from 2 to 3 inches long. The FRUIT is a nut 1 to 2 inches long, and ½ to 1 inch in diameter, in a thin husk which opens along its grooved seams when the fruit ripens in the fall. The nuts vary in size and thickness of shell. Cultivated varieties are sold on the market in large quantities.

The WOOD is heavy, hard, brittle, not strong, and of little value except for fuel and wagon stock. Some wood is satisfactory for making softball bats.

30

BITTERNUT HICKORY (Pignut)
Carya cordiformis (Wangenh.) K. Koch

Bitternut, the only hickory with bright yellow buds, is a tall slender tree with a broad pyramidal crown, attaining a height of 100 feet and a diameter of 2 to 3 feet. It is found in the eastern part of the state on moist rich soils, and is not abundant.

The BARK on the trunk is granite-gray, faintly tinged with yellow, less rough than in most hickories, yet broken into thin, plate-like scales.

BITTERNUT HICKORY (Twig, one-half natural size; leaf and fruit, one-third natural size)

The bright yellow winter BUDS are compressed and scurfy. The LEAVES are alternate, compound, from 6 to 10 inches long, and composed of 5 to 11 leaflets. The individual leaflets are smaller and more slender than those of the other hickories.

The male and female FLOWERS are on the same tree. The FRUIT is about 1 inch long and thin-husked, while the nut has a thin, smoothish, gray, brittle shell. The kernel is bitter.

The WOOD is hard, strong, and heavy; reddish-brown in color, and often called red hickory. It has the same uses as the other hickories but is said to be inferior.

31

WATER HICKORY
Carya aquatica (Michx. f.) Nutt.

This tree, as its name indicates, grows in bottomlands and rich, wet woods. It is found throughout the eastern portion of the state. It is not a large hickory, seldom attaining a height of 100 feet or a diameter of 2 feet. It is slender, with upright branches forming a narrow head. It is easily distinguished from other hickories by its reddish-brown winter buds which are covered with yellow glands that fall off easily.

WATER HICKORY (Fruit and twig, two-thirds natural size; leaf, one-fourth natural size)

The light brown BARK separates freely into long, loose, thick, plate-like scales.

LEAVES are alternate, compound, 9 to 15 inches long, with 7 to 13 slender leaflets. The FLOWERS are like those of other hickories. The FRUIT, often borne in clusters of 3 or 4, is a rather oblong nut, conspicuously four-angled, with a thin, red-brown hull that splits tardily. The nut itself is nearly as broad as long, four-angled and ridged, with a thin shell and bitter kernel.

The WOOD is heavy, strong, close grained, brown, and rather brittle. Probably used only for fuel.

32

SHAGBARK HICKORY
Carya ovata (Mill.) K. Koch

Shagbark hickory is found from eastern Texas to Florida and north to the St. Lawrence River and Minnesota. It is a large tree of commercial importance reaching 100 feet in height and 2 to 3 feet in diameter. It thrives best on rich, damp soil.

The BARK of the trunk is rougher than on other hickories, light gray and separating into thick plates which are only slightly attached to the tree. The large terminal winter buds are egg-shaped, the persistent outer bud-scales having narrow tips.

SHAGBARK HICKORY (Leaf, one-third natural size; twig, one-half natural size; fruit, one-fourth natural size)

The LEAVES are alternate, compound, from 8 to 15 inches long and composed of 5, rarely 7, obovate to ovate leaflets. The twigs are smooth or clothed with short hairs.

The male and female FLOWERS open after the leaves have attained nearly full size.

The FRUIT is borne singly or in pairs and is globular. The husk is thick and deeply grooved at the seams. The nut is pale, the shell thin, and the kernel sweet. It is sold in commercial quantities.

The WOOD is heavy, hard, tough, and strong. It is used in the manufacture of agricultural implements, tool handles, wagons, and sports equipment.

33

MOCKERNUT HICKORY
Carya tomentosa Nutt.

Mockernut, white, or bigbud hickory, is common on well-drained soils in the eastern part of the state. It is a short-limbed tree up to 60 feet high and 1 to 2 feet in diameter.

The BARK is dark gray, hard, closely and deeply furrowed, often apparently cross-furrowed or netted. The winter BUDS are large, round or broadly egg-shaped, and covered with downy, hard scales. The outer, dark scales fall off readily in the autumn. The recent shoots are short, stout and more or less covered with a downy growth.

The LEAVES are large, strong-scented, and hairy; composed of 7 to 9 obovate to oblong, pointed leaflets pale to orange-brown on the lower surface. The leaves turn a beautiful yellow in the fall.

MOCKERNUT HICKORY (Leaf, one-fifth natural size; twig, two-thirds natural size; fruit, one-third natural size)

The FLOWERS are of two kinds on the same tree; the male in three-branched catkins, the female in clusters of 2 to 5. The FRUIT is oval, nearly round or slightly pear-shaped with a very thick, strong-scented husk which splits nearly to the base when ripe. The nut sometimes has 4 to 6 ridges; is reddish-brown, thick shelled, and has a small, sweet kernel.

The WOOD is heavy, hard, tough, and strong. It is white except for the comparatively small, dark-brown heart, hence the name white hickory. It is used for the same purpose as shagbark hickory and makes an excellent fuel.

34

BLACK HICKORY
Carya texana Buckl.

This is a common hickory in northern and eastern Texas, growing on hillsides and sandy uplands with post and black jack oaks. It is distinguished by its rusty brown hairs found on the young leaves and branches. It forms a tree 60 to 75 feet high, with a trunk 2 feet in diameter.

BLACK HICKORY (Leaf, one-fourth natural size; fruit, one-third natural size; twig, three-fourths natural size)

The BARK is dark gray or nearly black, deeply divided into rough ridges, or it may be irregularly fissured and separated into thin scales. The winter buds are ovoid and covered with rusty hairs mixed with silvery scales.

The LEAVES, 8 to 12 inches long with 5 to 7, usually 7, leaflets and rusty-hairy slender petioles, are dark green, lustrous above; much paler beneath. The FLOWERS are similar to other hickories.

The FRUIT is obovoid, narrow, or abruptly contracted into a short stalk at the base, with a husk ¹/₁₂ to ⅙ inch thick, splitting to the middle or nearly to the base. The sweet-seeded nut is nearly obovoid to oblong, rounded at the ends, compressed and slightly four-angled, with a shell ⅙ to ⅕ inch thick.

The hard, brittle WOOD is used chiefly for fuel.

35

CORKWOOD
Leitneria floridana Chapm.

This lightest of all native woods in the United States grows in river swamps near the Gulf, about the mouth of the Brazos River. It is a small tree reaching a height of 20 feet, or a shrub, depending upon the location and natural conditions. The base is usually swollen. The straight, gradually tapering trunk is crowned with a loose, open-topped head. The young branchlets are coated with hairs which later drop, leaving a smooth, dark, red-brown stem.

CORKWOOD (Leaf, one-half natural size; fruit and winter twig, natural size)

The simple, alternate LEAVES are from 4 to 6 inches long and about 2 inches wide, borne on petioles 1 or 2 inches long. The leaves are shiny above.

The FLOWERS are in catkins of two kinds or sexes, the male about 1½ inches long, the female about ¾ inch long. Both kinds are borne on the same tree and appear about the first of March. The FRUIT is solitary or in clusters of 2 to 4, each about ½ to ¾ inch long, and ripens when the leaves are about one-half grown. The WOOD is soft, exceedingly light, generally uniform in texture and of a pale yellow color. It is used as a substitute for cork for floats on fishing nets.

36

EASTERN COTTONWOOD
Populus deltoides (Bartr.)

This cottonwood is found along streams throughout the state. The tree is easily propagated by cutting and grows rapidly, hence it has been widely planted to get shade quickly. The tree is often unsatisfactory for shade because it begins to shed its leaves by midsummer. The cotton-bearing seeds from the pistillate tree are often a nuisance. The soft wood is easily broken by winds; and the rank growth of the roots often results in stopping drain pipes and cracking and lifting sidewalks.

EASTERN COTTONWOOD (Leaf, one-half natural size; twig, one-third natural size)

The LEAVES are simple, alternate, broadly ovate or triangular, pointed, square at the base, and coarsely toothed on the edges, 3 to 5 inches across each way, covered with soft white hairs on the under side, supported by flattened slender petioles, 2 to 3 inches long. The winter buds are covered with chestnut-brown, resinous scales. The male and female FLOWERS are in catkins on separate trees and appear before the leaves. The FRUIT, a capsule, contains a number of seed with white silky hairs which permit the winds to carry the seed for long distances.

The WOOD is soft, light-weight, warps easily upon drying, but is used for many purposes, sometimes as a substitute for yellow poplar and linden.

Three other species of Southern cottonwood occur in western Texas. One species, P. sargentii Dode, which has long pointed leaves, is found in the Panhandle.

37

BLACK WILLOW
Salix nigra Marsh.

Black willow is found along streams throughout the state. It rarely grows taller than 50 feet and is frequently found growing singly or in clumps along the water courses. In winter the easily separable bright reddish-brown or golden, naked twigs are quite conspicuous.

The BARK is deeply divided into broad, flat ridges which separate into thick plate-like scales. On old trees it becomes shaggy. In color it varies from light brown tinged with orange, to nearly black.

The LEAVES are from 3 to 6 inches long, and less than ½ inch wide; the tips are greatly tapered and the entire margin finely toothed. The leaves are bright green on both sides, turning pale yellow in the early autumn.

The FLOWERS are in catkins, the male and female on separate trees.

The FRUIT is a capsule containing numerous minute seeds with long silky hairs which enable them to be blown long distances.

BLACK WILLOW (Leaf, two-thirds natural size; fruit and twig, natural size)

The WOOD is soft, light, and not strong. A high grade of charcoal, used in the manufacture of gunpowder, is obtained from willow wood, and it is the chief wood used in manufacture of artificial limbs.

38

AMERICAN HORNBEAM (Blue Beech)
Carpinus caroliniana Walt.

American hornbeam or blue beech, also known as ironwood and water beech, is a small slow-growing, bushy tree with a spreading top of slender, crooked or drooping branches. It is found along streams and in low ground, usually in the shade of other trees. Its height is usually from 20 to 30 feet and its diameter 4 to 8 inches, although it sometimes grows larger.

AMERICAN HORNBEAM (Leaf and fruit, one-half natural size; twig, natural size)

The TRUNK is fluted with irregular ridges or “muscles” extending up and down the tree. The BARK is smooth, light brownish-gray to dark bluish-gray in color, sometimes marked with dark bands extending horizontally on the trunk.

The LEAVES are simple, alternate, oval, long-pointed, doubly toothed along the margin, and 1 to 3 inches long. They resemble those of the black or sweet birch, but are smaller.

The FLOWERS are borne in catkins separately on the same tree; the male catkin about 1½ inches long, the female, about ¾ of an inch, with small, leaf-like, three-lobed green scales. The FRUIT is a nutlet about ⅓ inch long. It falls, attached to the leaf-like scale which acts as a wing aiding its distribution by the wind.

The WOOD is tough, close-grained, heavy, and strong. It is sometimes selected for use for levers, tool handles, wooden cogs, mallets, wedges, etc. The tree is of little commercial importance and often occupies space in the woods that should be utilized by more valuable species.

39

EASTERN HOPHORNBEAM (Ironwood)
Ostrya virginiana (Mill.) K. Koch

The tree gets its common names from the qualities of its wood and the hop-like fruit. It is a small, slender, generally round-topped tree, from 20 to 30 feet high and 7 to 10 inches in diameter. The top consists of long slender branches, commonly drooping toward the ends. It is found mostly on rather dry soils throughout the uplands of the eastern part of the state.

The BARK is mostly light, gray-brown, or reddish-brown, and finely divided into thin scales.

EASTERN HOPHORNBEAM (Twig, three-fifths natural size; leaf and fruit, one-half natural size)

The LEAVES are simple, alternate, generally oblong with narrow tips, sharply doubly toothed along the margin, and from 2 to 3 inches long.

The FLOWERS are of two kinds on the same tree; the male, in drooping catkins which form the previous summer, the female, in erect catkins on the newly formed twigs. The FRUIT, which resembles that of the common hop vines, consists of a branch of leafy bracts 1 to 2 inches long containing a number of flattened ribbed nutlets.

The WOOD, strong, hard, durable, light brown to white, with thick, pale sapwood, is often used for handles of tools, mallets, and other small articles.

40

RIVER BIRCH (Red Birch)
Betula nigra L.

This is the only native birch found at low elevations in the South. It occurs in East Texas and, as the name implies, in the deep, rich soils along the borders of streams, ponds, lakes, and swamps.

The BARK provides a ready means of identifying this tree. It varies from reddish-brown to cinnamon-red in color, and peels back in tough papery layers. These layers persist on the trunk, presenting a very ragged and quite distinctive appearance. Unlike the bark of other birches the thin paper layers are usually covered with a gray powder. On older trees, the bark on the main trunk becomes thick, deeply furrowed, and a reddish-brown color.

RIVER BIRCH (Twig, natural size; leaf and fruit, one-half natural size; male flower, one third natural size)

The LEAVES are simple, alternate, 2 to 3 inches long, more or less oval in shape, with double-toothed edge. The upper surface is dark green and the lower a pale yellowish green.

The FLOWERS are in catkins, the two kinds growing on the same tree. The FRUIT is cone-shaped about one inch long, and densely crowded with little winged nutlets that ripen from May to June.

The WOOD is strong and fairly close-grained. It has been used to some extent in the manufacture of wooden-ware, in turnery, and for wagon hubs. However, this tree is scattered in its distribution and is not of commercial importance.

41

AMERICAN BEECH
Fagus grandifolia Ehrh.

Beech is found in East Texas to the Trinity River on the bottomland of streams and the margins of swamps. It is one of the most beautiful of all trees, in summer or winter.

The simple, alternate, oblong-ovate LEAVES are 3 to 4 inches long, pointed at the tip, and coarsely toothed and hairy along the margin. When mature, they are almost leathery in texture. The beech produces a dense shade. The light brown winter buds are long, slender, and pointed.

AMERICAN BEECH (Fruit, leaves, and twig, one-half natural size)

The BARK is, perhaps, the most distinctive characteristic, as it maintains an unbroken, light gray surface throughout its life.

The little, brown, three-sided FRUITS or beechnuts are almost as well known as chestnuts. The nuts are in pairs in a prickly involucre. The kernel is sweet and edible. The fallen fruit, known as mast, is a favorite food of wildlife.

The WOOD of the beech is hard, strong, and tough, though it will not last long on exposure to weather or in the soil. The tree is of economic importance as a lumber tree, the wood being used for furniture, flooring, carpenters’ tools, and novelty wares.

42

ALLEGHENY CHINKAPIN
Castanea pumila Mill.

Chinkapins may grow as trees or form shrubby thickets; consequently their identification is at times confusing.

Some taxonomists credit East Texas with one species and a variety. Others list four species. Further study is needed.

C. pumila grows in dry woods, sandy ridges, and on borders of swamps from Florida to East Texas north to Ark., Tenn., Pa., and N. J. It may grow into a small tree 10 to 30 feet high and may reach 50 feet. If burned back by fires, it may send out stolons or sprouts and form dense shrubby growths. BRANCHLETS pubescent, gradually changing to a lustrous olive-green or orange-brown, then darker. The LEAVES are 4 to 6 inches long, 1½ to 2 inches wide, oblong to ovate and acute, the margin coarsely toothed with slender, rigid, spreading or incurved teeth. Base of leaf unequal, either rounded or wedge-shaped. Leaf at first tomentose above and below, later yellow-green above and whitish-downy below. Petiole short, stout, and flattened on the upper side. FRUIT a single brown, ovoid, pointed, plump, sweet, edible nut, ¾ to 1 inch long, encased in a bur covered with erect, crowded spines approximately ¾ inch long. WOOD light, hard, strong, coarse-grained; used for fence posts and railway ties. Of little economic importance because of its relative scarcity. C. pumila is a nut-producing tree of potential commercial importance.

ALLEGHENY CHINKAPIN (Fruit, leaves and twig, two-thirds natural size)

ASHE CHINKAPIN (C. pumila var. ashei Sudw.) is a small tree of dry sandy soils. Leaves are felt-like below. This variety is distinguished by its bur which has scattered, forked, and horizontally divergent bristles. The surface of the bur has smooth areas free of bristles.

A variation of chinkapin with leaves 3 to 4 inches long and lustrous below is frequently described as FLORIDA CHINKAPIN (C. alnifolia var. floridana Sarg.)

43

SHUMARD OAK (Spotted Oak)
Quercus shumardii Buckl.

This species, one of the largest Southern red oaks, was named for Benjamin F. Shumard, an early state geologist of Texas. SHUMARD OAK is found in the eastern part of the state on well-drained alluvial soils and on fertile slopes. It forms a tall, wide-spreading, rather open head. The BARK is dark, rough, divided into ridges, and usually from 1 to 1½ inches thick. It seldom comprises the principal species of any forest stands, but more often occurs as individual trees. It attains a diameter of more than 3 feet and a height of more than 100 feet, but is usually smaller.

Winter BUDS covered with gray, smooth scales, while the buds of Texas oak (page 44) are covered with red, densely pubescent scales.

SHUMARD OAK (Twig and leaf, one-half natural size; fruit, natural size)

The LEAVES are deciduous, simple, alternate 6 to 8 inches long by 4 to 5 inches wide; 7-lobed, rarely 5, and each lobe 2 or 3-lobed or deeply toothed. The lobes are frequently thicker than is shown in the drawing. The leaves are smaller and more deeply lobed than those of the black oak. Leaves smooth except for dense tufts of pale hairs at the axils of the veins below.

The FRUIT is a small acorn, about ⅔ inch in diameter and ¾ to 1¼ inches long, set in a shallow saucer-like cup.

The WOOD is heavy, hard, strong, close-grained, and light reddish-brown in color, and commercially important for lumber and cross ties.

The variety shumardii has leaves with narrow lobes, a rougher, dark grayish bark, and deeper cups to the acorns. It is the more common form in Texas.

44

TEXAS OAK
Quercus shumardii var. texana (Buckl.) Ashe

Texas oak is found on the dry limestone hills and ridges, and in the more fertile soils at their base, in Central and western Texas to the Edwards Plateau. It is rarely over 30 feet tall or 10 inches in diameter.

TEXAS OAK (Leaf, two-thirds natural size; fruit, and twig, natural size)

The BARK is light brown, red-tinged, deeply ridged, and broken into plate-like scales.

The LEAVES are deciduous 2½ to 3 inches wide, 3 to 3½ inches long; widest above the middle; divided into 5 to 7 lobes, with the terminal lobe 3-lobed; dark green and shiny above, pale-shiny below; petiole slender, about 1 inch long.

The FRUIT is short-stemmed, usually single, ¼ to ¾ inch long and broad, varying to nearly 1 inch long and ⅓ inch broad, set in a cup that covers one-third or less of the fruit, reddish-brown and often streaked with dark lines.

The WOOD is most useful for fuel.

GRAVES OAK (Q. gravesii Sudw.) is found in the Davis and Chisos Mountains of southwestern Texas.

45

BLACK OAK
Quercus velutina Lam.

Black oak, also called yellow oak, reaches 80 feet in height and 1 to 3 feet in diameter. It grows in East Texas, and in the hills and canyons near the mouth of the Pecos River. The crown is irregularly shaped and wide, with a clear trunk for 20 feet or more on large trees. The BARK on the very young trunks is smooth and dark brown, but soon becomes thick and black with deep furrows and rough broken edges. The bright yellow color and bitter taste of the inner bark are distinguishing characteristics.

BLACK OAK (Twig and fruit, one-half natural size; leaf, one-third natural size)

The LEAVES are deciduous, alternate, simple, 5 to 10 inches long and 3 to 8 inches wide, shallow or deeply lobed, the shape varying greatly. When mature, the leaves are dark green and shiny on the upper surface, pale on the lower, more or less covered with a scurfy yellow or orange down, and with conspicuous rusty brown hairs in the forks of the veins.

The FRUIT matures the second season. The light brown nut is from ½ to 1 inch long, more or less hemispherical in shape, and from one-half to three-fourths enclosed in the thin, dark brown, scaly cup. The yellow kernel is bitter.

The WOOD, used and marketed as red oak, is hard, heavy, strong, coarse-grained, and checks easily. It is a bright red-brown with a thin outer edge of paler sapwood.

46

SOUTHERN RED OAK
Quercus falcata Michx.

Southern red oak, commonly known as red oak and formerly as Spanish oak, usually reaches a height of 80 feet and diameter of 3 feet, although larger trees are found. It grows on dry hills in the eastern part of the state to the Brazos River, while three varieties are found in richer, more moist locations. Its large spreading branches form a broad, round, open top. The BARK is rough, not deeply furrowed, and varies from light gray on younger trees to dark gray or almost black on older ones.

SOUTHERN RED OAK (Leaf and fruit, one-third natural size; twig, one-half natural size)

The LEAVES are deciduous, with pear-shaped or irregular, rounded or narrow bristle-tipped lobes, the central lobe often longest. Variety pagodaefolia Ell., (Cherrybark Oak) has more numerous lobes. All leaves have brown or gray down beneath.

The staminate FLOWERS appear as catkins 3-5 inches long in April while the leaves unfold. The FRUIT ripens the second year. The small, rounded, ½ inch long acorn is set in a thin saucer-shaped cup that tapers to a short stalk.

The WOOD is heavy, hard, strong, coarse-grained, and valuable for lumber. The bark is rich in tannin. The tree is also desirable for shade and ornamental use.

47

BLACKJACK OAK
Quercus marilandica Muenchh.

The occurrence of blackjack oak is said to indicate poor soil since it often occurs on dry or poorly drained, gravelly, clay, or sandy upland soils where few other forest trees thrive. This perhaps accounts chiefly for its slow rate of growth. It is found in those parts of the state that support a natural tree growth, as far west as Callahan County. The tree sometimes reaches a height of 50 or 60 feet and a diameter of 16 inches, but it is usually much smaller. Its hard, stiff, drooping branches form a dense crown which usually contains many persistent dead twigs.

The BARK is rough, very dark, often nearly black, and “blocky”; inner bark bright orange or yellow.

BLACKJACK OAK (Twig, two-thirds natural size; leaf and fruit, one-third natural size)

The LEAVES are deciduous, tawny-pubescent, of leathery texture, dark green on the upper surface, lighter underneath, broadly wedge-shaped, and variable in shape, 4 to 10 inches long and about the same in width. The FRUIT is an acorn about ¾ inch long, yellow-brown and often striped, enclosed for half its length or more in a thick, light-brown cup. The acorns mature at the end of the second season; flesh of cotyledons yellow.

The WOOD is heavy, hard and strong. It is used for firewood and is made into charcoal.

48

WATER OAK
Quercus nigra L.

Water oak is native along the borders of swamps and streams and on rich bottomlands in Texas as far west as the Colorado River. It has been widely planted along streets and in parks as a shade tree. When fully grown this tree reaches a height of about 80 feet and a diameter exceeding 1 to 3 feet. The BARK is smooth, light brown tinged with red, and has many smooth, thin scales over the surface. Water oak can be best distinguished from the willow oak—a close associate, but longer-lived—by the differences in the general shape and size of leaves.

WATER OAK (Leaf, one-third natural size; twig and fruit, one-half natural size)

The LEAVES are simple, quite variable in shape, mostly oblong, broader near the point, and more narrow at the base, giving a wedge-shaped effect, often slightly three-lobed at the outer end, thin, and of a dull bluish-green color, paler below than above; mostly smooth, and usually 2 or 3 inches long and 1 to 2 inches wide; remain green for some time, then turn yellow and gradually fall from the tree during the winter.

The FLOWERS appear in April when the leaves begin to unfold. The FRUIT, an acorn, matures at the end of the second season. The acorn is from ½ to ⅔ inch long and nearly as broad, light brown or yellowish-brown and often striped, enclosed at the base only in a thin saucer-shaped cup.

The WOOD is heavy, hard, and strong, light brown in color, with lighter-colored sapwood. The wood is utilized chiefly for crossties and fuel.

49

WILLOW OAK (Pin Oak)
Quercus phellos L.

Willow oak, also called water oak, and pin oak, occurs in the eastern part of the state to the Brazos River. It is frequently found in lowlands and along the borders of rivers and swamps, but often also on rich sandy uplands. It is a beautiful and long-lived tree, and desirable for roadsides, lawns and parks.

The BARK is generally smooth and of a reddish-brown color; with age, the bark becomes slightly roughened and divided by narrow ridges.

WILLOW OAK (Twig, one-half natural size; leaf and fruit, one-third natural size)

The slender willow-like LEAVES on a tree whose habit of growth is manifestly that of an oak, make the tree easy to identify in the forest. The deciduous leaves are 2 to 5 inches long and ½ to 1 inch wide, smooth, light green and shiny above, but dull and usually smooth below; alternate in arrangement on the twig and borne on a short stout petiole.

The FRUIT, small acorns, closely set along the stem, matures at the end of the second year. The nut is a light yellow-brown hemisphere, about ½ inch in diameter, its base scarcely enclosed in the shallow, pale greenish-red or reddish-brown cup. The nuts are eaten as food by bluejays, grackles (blackbirds), several other species of birds, and by rodents.

The WOOD is not separated commercially from other species in the red oak group. It is heavy, strong, rather coarse-grained, light brown tinged with red, and not durable when exposed to the weather. It is used locally for crossties, bridge planks, barn sills, and general construction.

50

BLUEJACK OAK (Sandjack Oak)
Quercus incana Bartr.

This species, which grows on dry sand hills, is usually no more than 25 feet in height and 5 or 6 inches in diameter; ranging mainly through East Texas extending as far west as the Brazos River and scattering in Central and Northwest Texas.

The BARK is similar to that of blackjack, being divided into thick nearly square blocks 1 to 2 inches in length and covered with small dark brown or nearly black scales slightly tinged with red.

BLUEJACK OAK (Leaves, twigs, and fruit about two-thirds natural size)

The LEAVES of this tree are oblong-lanceolate, pale blue-green above, almost white beneath; 2 to 5 inches in length and 1 to l½ inches in width with a stout yellow midrib. The tree is most attractive in early spring when it is covered with the light red flowers and young leaves.

ACORNS are produced in great profusion, sessile, or on a short stock. They are rounded at the ends, striate, and about ½ inch in length, and mature at the end of the second year.

The WOOD is hard, strong, close-grained, light brown, tinged with red. It has a dark colored sapwood. The wood is of no value except for fuel.

There are several hybrids of this species reported in Texas.

51

EMORY OAK
Quercus emoryi Torr.

In the canyons and on the southern slopes of the Davis and Chisos Mountains occurs this interesting oak with glossy, spiny, “holly-like” leaves, and sweet, edible acorns. A small round-topped tree up to 30 or 40 feet in height, the emory oak has drooping branches and slender, decidedly reddish branchlets.

The LEAVES are mostly persistent, oblong, pointed, smooth or sharply toothed along the margin, thick, very glossy green, about 2 inches long and less than 1 inch wide.

EMORY OAK (Leaf three-fourths natural size; fruit and twig, three-fourths natural size)

The acorn, or FRUIT, is borne close to the branchlet and matures in one season. It is oblong in shape, ½ inch or more in length, with a dark brown or nearly black nut enclosed for about one-third its length in a narrow cup. The latter is lined with dense gray fuzz or “tomentum.”

The WOOD is heavy, strong, somewhat brittle, close-grained, dark brown, with light brown sapwood tinged with red. The acorns are an important article of food for Mexicans and Indians.

MEXICAN BLUE OAK (Q. oblongifolia Torr.), closely resembling emory oak, is a smaller tree and does not occur at the higher elevations (over 6,000 ft.) where emory oak may be found.

GRAY OAK (Quercus grisea Liebm.) occurs in the Trans-Pecos area in Texas. This species is a scrub or small tree 20 to 30 feet high, but sometimes reaching a height of 65 feet.

52

LIVE OAK
Quercus virginiana Mill.

Live oak range extends from southeastern Virginia through the lower Coastal Plain of the Atlantic and Gulf States; in Texas, from the mouth of the Rio Grande north to the Red River and west to the Guadalupe Mountains, also in southern Mexico and Cuba. It is a tree of striking character from its wide-spreading habit; sometimes reaching more than 100 feet in spread; with a short stout trunk, 3 to 4 feet in diameter, dividing in several large limbs with nearly horizontal branches, forming a low, dense, round-topped head. Its height is commonly from 40 to 50 feet. The BARK on the trunk and large branches is dark brown tinged with red, and slightly furrowed. It grows to largest size on the rich hammocks and low ridges near the coast and only a few feet above the water level. Slow-growing and long-lived, it is one of the most desirable trees for roadside and ornamental planting throughout most of its range. It is one of the very few trees that is apparently immune to cotton root-rot.

LIVE OAK (Leaf, natural size; fruit and twig, one-half natural size)

The LEAVES are simple, persistent, thick, leathery, oblong, smooth above, pale and silvery white beneath; from 2 to 4 inches in length and 1 to 2 inches in breadth.

The FRUIT is an acorn about 1 inch long and ⅓ inch wide, borne on a long stem or peduncle; it is oblong, dark brown and lustrous, and set in a top-shaped, downy cup of a light reddish-brown color. The acorn matures at the end of the first season.

The WOOD is very heavy, hard, strong and tough, light brown or yellow, with nearly white, thin sapwood. It was formerly largely used in ship building.

53

MOHRS OAK (Shin Oak)
Quercus mohriana Buckl.

Over a wide section of Central Texas, on inferior soils, are found four or more species of “shin” oaks, so called from their low-growing bushy habit. Mature trees vary from 3 to 18 feet high. These are considerably alike in foliage and fruit. The “oak shinneries” form a forest cover in Central Texas that affords watershed protection on the head waters of some of the state’s main rivers.

MOHRS OAK (Fruit, natural size; leaf, two-thirds natural size)

The tree has a thin, pale-colored BARK, rough, with deep furrows running up and down the tree.

The deciduous LEAVES of the above small-tree species of shin oak are elliptical, pointed or rounded at the end, smooth or wavy or sometimes lobed or slightly toothed along the margin. They are thick, gray-green, dense hairy beneath, about 3 inches long by 1 inch wide.

The acorns, or FRUIT, occur solitarily or in pairs, on very short peduncles, and mature in one season. They are small, deeply enclosed in a relatively heavy cup, thin toward the outer end.

The WOOD of Mohrs oak is not of economic importance.

54

DURAND OAK (Durand White Oak)
Quercus durandii Buckl.

This oak is found on the well-drained soil of river bottoms from the coast region of East Texas to the bottoms of the Guadalupe River (Victoria County) and inland to San Saba County, and the Dallas area.

It forms a tree 60 to 90 feet high with a tall trunk 2 to 3 feet in diameter; comparatively small branches, the lower horizontal, the upper ascending, forming a dense, round-topped, handsome head.

DURAND OAK (Leaves and fruit, one-half natural size)

The BARK is thin, light gray or nearly white and broken into loose appressed scales.

The deciduous LEAVES are 2½ to 7 inches long, yellow-green, thin, smooth on the edges, three-lobed toward the tip, or irregularly lobed, the three forms appearing on different branches of the same tree.

The FRUIT, an acorn, solitary or in pairs on a very short peduncle, is nearly egg-shaped, pale chestnut-brown, shinning, ½ to ¾ inch long, and barely enclosed at the base in the thin saucer-shaped cup. The acorn matures in one season.

The WOOD is hard and heavy and is used largely as fuel.

55

WHITE OAK
Quercus alba L.

Within its natural range, which includes practically the entire eastern half of the United States, the white oak is one of the most important timber trees. Found in East Texas to the Brazos River, it commonly reaches a height of 80 feet and a diameter of 3 feet. It is found on high quality soils. Grown in a dense stand it has a long, straight trunk, free of side branches for over half of its height. In the open, it develops a short trunk and broad crown with far-reaching limbs.

The BARK is thin, light ashy gray and covered with loose scales or broad plates.

WHITE OAK (Twig, one-half natural size; leaf and fruit, one-third natural size)

The deciduous LEAVES are alternate, simple, 5 to 9 inches long and about half as broad. They are deeply divided into 5 to 9 rounded, finger-like lobes. The young leaves are a soft silvery-gray or yellow or red while unfolding, later becoming bright green and lustrous or dull above and much paler and glaucous below. The FRUIT, an acorn maturing in one season, is ¾ to 1 inch long, light brown, and about one-fourth enclosed in a warty cup. The acorn is relished by hogs and other livestock.

The WOOD is heavy, strong, hard, tough, close-grained, durable, and light brown in color. The uses are many, including construction, watertight barrels, furniture, wagons, implements, interior finish, flooring, and fuel. Although white oak is slow growing, it is valuable for forest, highway and ornamental planting.

56

POST OAK
Quercus stellata Wangenh.

Post oak of Texas is usually a medium-sized tree, with a rounded crown, commonly reaching a height of 50 feet and a diameter of 1 foot, but sometimes considerably larger. It is the common oak in Central Texas and occurs frequently in East Texas. It occurs most abundantly on the poorer upland soils that have poor drainage.

The deciduous LEAVES are usually 4 to 5 inches long and nearly as broad, deeply five-lobed with broad rounded divisions, the lobes broadest at the ends. They are thick and somewhat leathery, dark green and shiny on the upper surface, lighter green and rough hairy beneath.

POST OAK (Leaf and twig, one-third natural size; fruit, one-fourth natural size)

The FLOWERS, like those of the other oaks, are of two kinds on the same tree, the male in drooping clustered catkins, the female inconspicuous. The FRUIT, an oval acorn ½ to 1 inch long, is set in a rather small cup which has thin scales and may or may not be stalked. The fruit matures in one season.

The WOOD is heavy, hard, close-grained, light to dark brown, and durable in contact with the soil. It is used for crossties and fence posts, and occasionally for furniture and lumber.

Aside from the typical form, two varieties are found in the state. The variety margaretta (Ashe) Sarg. is the common post oak of eastern Texas.

57

BUR OAK (Mossy-Cup Oak)
Quercus macrocarpa Michx.

Bur oak occurs throughout the eastern part of the state and as far west as Callahan and Menard Counties, in rich bottomlands along streams, or on rich hillsides along spring-fed rivers. The name alludes to the fringe around the cup of the acorn, which is sometimes large. The tree usually has a broad top of heavy spreading branches and a relatively short body. In maturity it attains a diameter of 5 feet or more and a height of over 80 feet.

The branches frequently have conspicuous corky ridges after the second year.

BUR OAK (Illustrations, one-third natural size)

The BARK is light gray and is usually broken up into small narrow flakes. The deciduous LEAVES resemble somewhat those of the common white oak, but are much larger and have a pair of deep indentations on their border near the base, and wavy notches on the broad, middle and upper portions of the leaf. They range from 6 to 12 inches long and 3 to 6 inches wide. The FRUIT, or acorn, is set deeply in the fringed cup. The fruit is usually 1 inch or more in diameter but varies widely in respect to size and the degree to which the nut is enclosed in the mossy-fringed cup. The fruit matures in one season.

The WOOD is heavy, hard, strong, tough and durable. It is used for much the same purposes as the other white oaks—for lumber, crossties, and fuel.

58

OVERCUP OAK
Quercus lyrata Walt.

Overcup oak, sometimes known as the swamp post oak or water white oak, becomes a large tree with small, often pendulous branches. It is found in moist, rich bottomlands in East Texas to the Navasota River Valley.

The LEAVES are deciduous, 7 to 9 inches long, 1 to 4 inches broad, oblong, wider toward the point, narrowed at the base, dark green above, often whitish beneath, with 7 to 9 distinct pointed lobes. They frequently turn to a bright scarlet or to scarlet and orange in the fall. The BARK is rough, flaky, and gray tinged with red.

OVERCUP OAK (Leaf and fruit, one-third natural size; twig, two-thirds natural size)

The FLOWERS open with the unfolding of the leaves. The FRUIT, an acorn, ripens in one season. The large rounded or somewhat flattened acorn, an inch or more across and ½ to 1 inch high, is nearly covered by the ovate or nearly spherical cup, which is thickened at the base but gradually grows thinner, often irregularly split at the margin of the cup.

The WOOD is heavy, hard, strong, and durable and is used for the same purposes as that of white oak.

59

SWAMP CHESTNUT OAK
Quercus michauxii Nutt.

This species, also called basket oak and cow oak, is distinguished by having a wavy leaf-margin, a large fruit which is sessile or very short stalked, and by the fact that it occurs in its greatest abundance in bottomlands. It is confined chiefly to the eastern part of the state as far west as the Trinity River.

In the appearance of its bark and branches it closely resembles the ordinary white oak, but the leaf lacks deep indentations and the acorn is usually larger. The tree attains heights of about 100 feet and diameters of about 4 feet.

The LEAVES are deciduous, obovate or oblong ovate, notched on the edge somewhat like the chinkapin oak, but the lobes are rounded instead of pointed. They vary from 4 to 8 inches in length, are downy beneath and turn a rich crimson in the fall. The BARK is very light gray, and on old trees is broken into broad flakes or divided into strips.

SWAMP CHESTNUT OAK (Twig, one-half natural size; fruit and leaf, one-third natural size)

The acorn, or FRUIT, matures in one season and attains a diameter of more than an inch and a length of 1½ inches. The acorn is a bright, shiny brown and set in a rather shallow cup. The acorn is frequently eaten by cows and this fact gives the tree one of its common names.

The WOOD is heavy, hard, tough, strong, and takes an excellent polish. It is used in manufacturing lumber, veneer, boards (shakes), water-tight barrels, fuel, fence posts, and baskets.

60

CHINKAPIN OAK
Quercus muhlenbergii Engelm.

This oak, also known as chestnut oak, occurs over the eastern part of the state and west to the Guadalupe River; also on the Guadalupe Mountains. It grows on most classes of soils, except in swamps, and is tenacious on shallow, dry, limestone soil. The BARK is light gray, and breaks up in the short narrow flakes on the main trunk and old limbs.

It reaches a height of 20 to 50 feet. The straight, shapely trunk bears a round-topped head composed of small branches, which makes it an attractive shade tree.

The LEAVES are deciduous, oblong, 3 to 6 inches in length, 1½ to 3 inches wide, equally toothed or notched on the edges, resembling the leaves of chestnut oak. The FRUIT, which ripens in the fall of the first season, is light to dark brown when ripe, and edible if roasted. This acorn is ½ to nearly 1 inch long, usually less than 1 inch in diameter, and set in a shallow cup.

The WOOD is heavy, hard, strong, durable, and takes an excellent polish. It is used for barrels, fencing, crossties, fuel, and occasionally for furniture.

CHINKAPIN OAK (Leaf, one-half natural size; twig and fruit, one-third natural size)

61

AMERICAN ELM (White Elm)
Ulmus americana L.

The range of this famous American shade tree extends west to the Dakotas and southward to Coke County, Texas. Within this vast area, it is generally common except in the high mountains and wet bottomlands. It reaches an average height of 60 feet and a diameter of 3 feet. The BARK is dark gray, divided into irregular flat-topped, thick ridges, and is generally firm. An incision into an outer ridge of bark will show alternate brown and cream colored layers. A cross section of slippery elm bark is uniformly cream or tan colored.

AMERICAN ELM (Twig, one-half natural size; leaf and fruit, one-third natural size)

The LEAVES are alternate, simple, 4 to 6 inches long, rather thick, somewhat lopsided, double toothed on the margin, and either smooth or scabrous above and soft pubescent or glabrate below. The leaf veins are very pronounced and run in parallel lines from the midrib to the leaf margin.

The FLOWERS are small, perfect, greenish, on slender pedicels, soon pendulous, and appear before the leaves. The FRUIT ripens in the spring and is a light green, oval-shaped samara (winged fruit) with the seed portion in the center and surrounded entirely by a wing. A deep notch in the end of the wing is distinctive of the species.

The WOOD is heavy, hard, strong, tough, and difficult to split. It is used for hubs of wheels, saddle trees, veneer for baskets and crates, and slack cooperage.

American elm is rapidly being destroyed in the East and Midwest by the Dutch elm disease and by phloem necrosis.

62

WINGED ELM
Ulmus alata Michx.

Winged elm gets its common name from the thin corky growth or “wings”, usually found on smaller branches. These “wings” generally end abruptly at the leaf nodes as contrasted by the cedar elm (p. 63) whose “wings” are generally continuous. On large rapidly growing trees the wings are often absent. It occurs in eastern Texas south to the valley of the Guadalupe River, on dry uplands, and in moist soils along streams and swamps. It grows rapidly in moist situations, and may also be planted along roadsides in relatively dry, poor locations. It is comparatively free from disease, though not long-lived. Winged elm is a medium-sized tree 40 to 50 feet in height and rarely as large as 2 feet in diameter. It forms a rather open, round-topped head.

WINGED ELM (Leaf and fruit, one-third natural size; twig, one-half natural size)

The BARK is light brown tinged with red, and divided by irregular shallow fissures into flat ridges.

The LEAVES are simple alternate, 2 to 4 inches long and 1 to 2 inches broad, coarsely double-toothed, thick, dark green and smooth above, and pale and pale-pubescent or glabrous below with auxiliary hairs and prominent veins. The leaves are small and pointed at the tip, which distinguishes them from the small blunt leaves of the cedar elm.

The FLOWERS appear in early spring, long before the leaves unfold. The FRUIT ripens in the spring about the time the leaves appear; it is winged, tipped with two, small, incurved arms or beaks; oblong, reddish-brown; about ⅓ inch long, with a long, slender pedicel at the base, and covered with white hairs.

The WOOD is very similar to that of the other elms—heavy, hard, and difficult to split. It is occasionally used for hubs and mauls. Formerly, rope made of the inner bark was used for binding the covers to cotton bales.

63

CEDAR ELM
Ulmus crassifolia Nutt.

Cedar elm is distributed widely over the state, near streams, in deep rich soil, and on dry, limestone hills. It is the most common elm tree of Texas, extending to the Pecos River. It forms a tree up to 75 feet high with a tall straight trunk 2 to 3 feet in diameter, and with an inversely conic round-topped head and drooping branches. It reaches its largest size on the bottomlands of the Guadalupe and Trinity Rivers.

CEDAR ELM (Illustrations, three-fourths natural size)

The BARK is light-brown tinged with red, deeply fissured, with flattened, scaly ridges. The young twigs are finely velvet and reddish, sometimes developing thin corky wings which continue around the leaf nodes.

The LEAVES are small, the largest less than 2 inches long, often double toothed and usually rather blunt at the tip. Their upper surface is dark green and rough, while the lower surface and petiole are hairy.

The FLOWERS, which appear in the autumn, are in small short-pedicelled clusters at the axils of the leaves. The FRUIT, an oval-shaped samara slightly more than ¼ inch long, is hairy all over, especially on the edges and is deeply notched at the tip.

The WOOD is reddish-brown, brittle, and with a thick layer of lighter colored sapwood. The wood is sometimes used in the manufacture of hubs, furniture, and fencing.

64

SLIPPERY ELM (Red Elm)
Ulmus rubra Muhl.

Slippery elm, or red elm, is found in the eastern and southern parts of the state as far as the upper Guadalupe and Leon Rivers in Kerr and Comal Counties. It is found principally on the banks of streams and on low hillsides in rich soil. It is a tree of small to moderate size, but noticeably wide-spreading. It is usually less than 40 feet in height and 6 inches in diameter, although trees of larger dimensions are occasionally found.

The BARK on the trunk is frequently 1 inch thick, dark grayish-brown on the surface, uniformly tan or cream colored in cross section, and broken by shallow fissures into flat ridges. The inner bark is used to some extent for medicinal purposes and, when chewed, affords a slippery mucilaginous substance, whence the tree gets its name.

The LEAVES are simple, alternate on the stem, 4 to 6 inches in length, sharp-pointed, their bases unsymmetrical, doubly toothed on the edges, thick, dark green, and very rough above, pubescent below.

SLIPPERY ELM (Leaf and fruit, one-third natural size; twig, one-half natural size)

The FLOWERS appear in early spring and are nearly sessile. The FRUIT, a samara, ¾ inch long and ½ inch in diameter, consists of a seed surrounded by a thin, broad, greenish wing. The fruit ripens when the leaves are about half grown. The margin of the fruit is not ciliate.

The WOOD is close-grained, tough, strong, heavy, hard, and moderately durable in contact with the soil. Slippery elm and American elm are sold commercially as “soft elm,” and have similar uses.

65

PLANER TREE (Water Elm)
Planera aquatica (Walt.) Gmel.

Planer tree or water elm is found on low wet lands along the streams of the eastern part of the state as far west as Brazos and Matagorda Counties. It forms a small spreading tree with a low broad head 30 to 40 feet in height and with a maximum trunk diameter of 20 inches.

PLANER TREE (Illustrations, nearly natural size)

The BARK is light brown or gray, about ¼ inch thick, and separates into large scales.

The LEAVES resemble those of the small-leaved elms. They are 2 to 2½ inches long, ¾ to 1 inch wide on a short petiole, dark dull green above and paler on the lower surface, and have yellowish veins.

The FLOWERS appear with the leaves in March or early April. The small flowers are sometimes perfect; occasionally the male and female flowers are borne separately on the same tree. The FRUIT is a peculiar, rounded, shaggy-appearing structure, about ⅜ inch long. It consists of a nut-like center covered with soft and irregular wing-like outgrowths which extend out on all sides from the center.

The WOOD is light brown, coarse-grained and soft, very light in weight, and has a broad zone of nearly white sapwood. The wood has little economic value.

66

HACKBERRY
Celtis occidentalis L.

Hackberry is found over eastern Texas on various types of soil. It is usually a medium-sized to large tree, becoming 60 to 100 feet or more high and 10 to 20 inches in diameter. Its limbs are often crooked and angular and bear a head made of slender, pendant branches or short, bristly, stubby twigs. In the open, the crown is generally symmetrical. It makes an excellent shade tree.

The BARK is brownish-gray, one inch or more thick, and generally very rough with many scale-like or warty projections of dead bark.

HACKBERRY (Leaf and fruit, two-thirds natural size; twig, one-half natural size)

The LEAVES are simple, ovate, alternate, one-sided, 2 to 4 inches long, thick, very rough above, green on both surfaces, and the edges toothed toward the long point. The FLOWERS are inconspicuous, and the two kinds are borne on the same tree. They appear in April or May, and are of a creamy greenish color. The FRUIT is a round, somewhat oblong, drupe or berry, dark purple, ⅓ inch in diameter, ripening in September. The peduncle (fruit stem) is much longer than the petiole of the leaf. It has a thin, purplish skin, and sweet yellowish flesh. The berries frequently hang on the tree most of the winter.

The WOOD is heavy, rather soft, weak, and decays readily when exposed. It is used chiefly for fuel, and occasionally for lumber.

The range of this hackberry extends far into the northern and northeastern parts of the United States.

67

SUGARBERRY (Sugar Hackberry)
Celtis laevigata Willd.

Sugarberry is distributed widely over the eastern half of the state. It occurs most abundantly and attains greatest size in rich alluvial soil, but thrives on various soil types. The species may grow 30 to 50 feet high and 10 to 20 inches in diameter, though sometimes much larger. Its limbs are spreading or pendulous, forming a broad head. Its branchlets are slender, light green, glabrous or pubescent when young, and bright reddish-brown during their first winter.

The BARK is pale gray and covered with prominent excrescences.

The LEAVES are simple, oblong-lanceolate, one-sided, 2½ to 5 inches long, thin, smooth, with the edges entire.

SUGARBERRY (Leaf, fruit, and twig, three-fourths natural size)

The FLOWERS, not conspicuous, are borne on slender, smooth peduncles in April or May, and are of a creamy-greenish color. The FRUIT is short-oblong to pear shaped, orange-red or yellow, ¼ inch in diameter, and ripens in September. The peduncle of the fruit is shorter or slightly longer than the petiole of the leaf.

The WOOD is soft, weak, close-grained, and light yellow, and is used occasionally for flooring and furniture, but chiefly for fuel.

68

RED MULBERRY
Morus rubra L.

Red mulberry occurs in eastern Texas and west to the canyon of Devils River, Valverde County. It prefers rich moist soils. It is a small tree, rarely 50 feet high and 2 feet in diameter, often growing in the shade of larger trees.

The BARK is rather thin, dark grayish-brown, and peels off in long narrow flakes.

RED MULBERRY (Twig, two-thirds natural size; leaves and fruit, one-third natural size)

The LEAVES are alternate, thin, rounded or somewhat heart-shaped, toothed, pointed, 3 to 5 inches long, rough hairy above and soft hairy beneath. Some of the leaves are mitten-shaped or lobed.

The FLOWERS are of two kinds, on the same or different trees, in long drooping catkins, the female catkins shorter, appearing with the leaves.

The multiple FRUIT is edible, dark purple or black when ripe, and ¾ to 1 inch long.

The WOOD is rather light, soft, not strong, light orange-yellow, and the heartwood is durable in contact with the soil. It is chiefly used for fence posts.

The TEXAS MULBERRY (Morus microphylla Buckl.) is found in West Texas and south from the Colorado River. Its leaves are rarely longer than 1½ inches.

The WHITE MULBERRY (Morus alba L.) a native of China, has become naturalized in the United States.

69

OSAGE-ORANGE (Bois-d’arc)
Maclura pomifera (Raf.) Schneid.

Osage-orange, “bodark”, hedge apple, or mock orange is native to eastern and Central Texas; attaining its largest size in the valley of the Red River in the northeast part of the state. It commonly reaches a height of 20 to 40 feet and a diameter of 4 to 12 inches. The BARK is thin, gray, sometimes tinged with yellow; on old trees it is divided into strips or flakes. It contains tannin and has been used for tanning leather. The twigs are armed with stout, straight thorns ⅜ to 1 inch long.

OSAGE-ORANGE (Leaf and fruit, one-fourth natural size; leaf and twig, nearly one-half natural size)

The LEAVES are simple, alternate, oval-pointed and lustrous green on the upper surface, 3 to 5 inches long and 2 to 3 inches wide, and entire. The leaves turn bright yellow in the autumn.

The yellowish FLOWERS appear in May; two kinds on the same tree—the male flowers in a linear cluster and the female flowers a rounded ball. The FRUIT is globular, from 2 to 5 inches in diameter, resembling a rough, green orange.

The WOOD is heavy, exceedingly hard, very strong, and very durable in contact with the soil. The heartwood is bright orange in color, turning brown upon exposure. It is largely used for posts. The Indians prized the wood for bows and war clubs. The tree is planted for windbreaks and hedges. The bark of the roots supply a yellow dye.

70

SOUTHERN MAGNOLIA (Evergreen Magnolia)
Magnolia grandiflora L.

Magnolia is one of the best-known trees in the eastern part of the state. No other tree excels it in the combined beauty of leaves and flowers. Occurring naturally in rich moist soil on the borders of river swamps and nearby uplands in the Coastal Plain to the valley of the Brazos River, it has been widely cultivated for its ornamental value. In its natural habitat, it attains heights generally of 60 to 80 feet and trunk diameters up to 4 feet. The dense pyramidal head, or crown, is made up of numerous small spreading branches and branchlets.

SOUTHERN MAGNOLIA (Leaf and flower, one-fourth natural size; twig, one-half natural size)

The LEAVES are evergreen, thick, leathery, elliptical or oval, dark green and shiny above, rusty or silvery beneath, and mostly from 5 to 8 inches long, and 2 to 3 inches wide, with prominent midribs. They remain on the tree for approximately 2 years.

The large FLOWERS are 6 to 8 inches broad, with pure white petals surrounding a splash of bright purple in the center, and have a pleasing fragrance.

The FRUIT is a rounded or oval aggregate 3 to 4 inches long containing many seeds, each enclosed in a follicle. These open in the fall and display the bright red seeds dangling on slender threads.

The WOOD is moderately heavy, hard, and of a creamy color. It is used chiefly for furniture, Venetian blinds, and fuel.

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SWEETBAY (Sweetbay Magnolia)
Magnolia virginiana L.

Sweetbay, better known locally as white or swampbay, is found in the southern part of the Texas pine belt to western Montgomery County, in swamps and rich, moist soils. Often appearing as a clump of sprouts in open woods, in dense forests it grows as a tree 60 to 90 feet high, and up to 3 feet in diameter.

The bark is light gray; the branchlets silky-white.

The LEAVES are simple, oblong, pale green above and hairy-white beneath, 4 to 6 inches long, 1 to 2 inches wide, remaining on sprout growth to spring, usually dropping from older trees in the fall.

SWEETBAY (Leaf, one-third natural size; twig, two-thirds natural size; fruit, one-fourth natural size)

The fragrant FLOWERS, with 9 to 12 creamy-white petals on slender smooth stems, measure 2 to 3 inches across. They continue to open during several weeks of spring and early summer. The FRUIT aggregate or “bur” is oval-shaped, dark red or brown, about 2 inches long, and contains scarlet seeds which are usually oval, flattened, and less than ½ inch long.

The WOOD is soft, creamy white to reddish, and is used for furniture, boxes, woodenware, and venetian blinds.

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PAWPAW
Asimina triloba (L.) Dunal

This odd and attractive tree does not grow abundantly in Texas and seems to be little known. It is found near streams in the extreme east portion of the state and in greater abundance in Harrison and Grayson Counties. It is seldom over 30 feet high with a trunk 8 or 10 inches in diameter.

The BARK on young trees and branches is a smooth, clean brown; on older trees becoming blotched with gray, and bearing a few small wart-like excrescences.

The LEAVES are obovate—lanceolate, 8 to 12 inches long, light, bright green above and paler below.

The FLOWERS are strikingly characteristic. The three light green, hairy sepals are early deciduous. The outer three petals are a rich brownish-purple and deeply veined. The inner three petals are pointed, glandular, and erect.

The FRUIT is an oblong berry 3 to 6 inches long, and contains a number of large, brown seeds. When ripe it falls to the ground, turning dark brown. The deep yellow flesh is palatable, though some people do not care for its unique flavor. The tree blooms and bears as a shrub or tree.

The WOOD is light, weak, and spongy, yellow in color, and is of no known value.

PAWPAW (Leaf, one-fourth natural size; twig, two-thirds natural size)

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REDBAY
Persea borbonia (L.) Spreng.

Redbay is native to the Atlantic and Gulf Coast states from Virginia to southeastern and southern Texas and is a member of the Laurel family. In all, about 100 species of Persea are found in North and South America.

Redbay grows to 70 feet in height and 3 feet in diameter, with a well-shaped head of erect, stout, dark green branches. It grows in moist, rich soils along the streams and in swamps and sometimes in drier soils along with longleaf pine, over the coastal region.

REDBAY (Illustrations, two-thirds natural size)

The aromatic LEAVES are oblong, thick or leathery, up to 4 inches in length and 1½ inches in width, bright green with the margin entire and with a narrow, orange-colored midrib. They remain green over the first winter. The yellowish-white FLOWERS are in small clusters.

The FRUIT is a nearly round, rather fleshy, shiny, dark blue or nearly black drupe, about ½ inch long. It ripens in the autumn and contains a large rounded stone.

The WOOD is heavy, hard, strong, bright red, with thin, lighter colored sapwood. It is used for cabinet-making, and interior house finish, and has been used for boat construction.

SILKBAY (Persea humilis Nash) is a dwarf or low growing shrub or tree 6 to 10 feet in height occurring in southern Texas.

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SASSAFRAS
Sassafras albidum (Nutt.) Nees

This small tree with aromatic leaves and twigs is usually not over 40 feet in height or a foot in diameter. It is common in Texas west to the Brazos River on the drier soils, and is one of the first broad-leaved trees to grow on abandoned fields, where the seeds are dropped by birds. The species is closely related to the camphor tree of Japan. The BARK is red-brown and deeply furrowed while the bark of the twigs is bright green.

The LEAVES are unusual in that they vary widely in shape on the same tree, or even on the same twig. Some are oval and entire, 4 to 6 inches long; others have one lobe, resembling a mitten; while still others are divided at the outer end into 3 distinct lobes.

SASSAFRAS (Twig, one-half natural size; leaf and fruit, one-third natural size)

The FLOWERS are clustered, greenish-yellow, and open with the first unfolding of the leaves. The male and female flowers are usually on different trees. The FRUIT is an oblong, dark blue or black lustrous drupe surrounded at the base by what appears to be a small orange-red or scarlet cup at the end of the scarlet peduncle.

The WOOD is light, soft, weak, brittle, and durable in the soil; the heartwood is dull orange-brown. It is used for posts and crossties. The bark of the roots yields the very aromatic oil of sassafras much used for flavoring candies and various commercial products. The bark of the root is sold in small bundles for making sassafras tea.

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WITCH-HAZEL
Hamamelis virginiana L.

This tall-growing shrub which has the peculiar habit of blooming in the late fall and ripening its fruit in early spring is native to the extreme eastern portion of Texas, being found on rich soils of streams or along the borders of the forest.

The BARK is smooth, white, gray, and mottled with light brown.

The LEAVES are usually obovate, 3 to 5 inches long, prominently veined, with a wavy margin, very irregular at the base, bright green above and slightly paler below. They are generally smooth.

The odd, yellow FLOWERS are borne in clusters along the branch, with long, very narrow twisted petals. They develop during November, December, and January, the time depending somewhat on the weather, and possess a refreshing fragrance. The FRUIT is a hard, tough, two-celled capsule, with two beaks. It divides in half, each half containing a shiny black seed. In the late summer or early autumn the capsules pop open, discharging the seeds.

WITCH-HAZEL (Leaf, one-half natural size; flower and fruit, natural size)

The WOOD is hard and close-grained. The trees do not grow large enough to be of commercial value.

An analgesic extract used in lotions and balms is obtained from the inner bark by distillation.

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SWEETGUM (Redgum)
Liquidambar styraciflua L.

Sweetgum is a valuable and sometimes troublesome forest tree in East Texas. It occurs on rich river bottoms and in swamps subject to frequent overflow, as well as on the dried uplands, as far west as the San Jacinto River Basin. The BARK is a light gray, roughened by corky scales, later becoming deeply furrowed. After the second year the twigs often develop corky projections of bark, which give them a winged appearance.

The simple, alternate star-shaped LEAF with its 5 to 7 points or lobes, is 5 to 7 inches across and aromatic. In the fall its coloring ranges from pale yellow through orange and red to a deep bronze.

SWEETGUM (Leaf and fruit, one-third natural size; twig, two-thirds natural size)

The FLOWERS of both sexes appear on the same tree and open with the leaves. The FRUIT, a head an inch or more in diameter, is made up of many capsules with projecting spines. It hangs on the tree late into the winter.

The WOOD is moderately hard, close-grained, and not durable on exposure. The reddish-brown heartwood, which suggests the name red gum, is not present to any appreciable extent in logs under 16 inches in diameter. The wood is extensively used for flooring, interior finish, paper pulp, and veneers for baskets of all kinds.

In the uplands, this species competes aggressively with the more valuable Southern pines. The control of sweetgum is, therefore, a problem. This attractive species should be more widely planted for ornamental use.

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AMERICAN SYCAMORE
Plantanus occidentalis L.

American sycamore, also called planetree and buttonwood, is considered the largest hardwood tree in North America. It occurs throughout eastern Texas to Zavalla County. It is most abundant and reaches its largest size along streams and on rich bottomlands. It grows rapidly and occasionally attains a height of 140 to 170 feet and a diameter of 10 to 11 feet.

The BARK of the sycamore is a characteristic feature; on the younger trunk and large limbs it is smooth, greenish-gray in color. The outer bark of limbs and upper trunk flakes off in large patches and exposes the nearly white younger bark. Near the base of old trees, the bark becomes thick, dark brown and divided by deep furrows.

AMERICAN SYCAMORE (Fruit and leaf, one-third natural size)

The LEAVES are simple, alternate, 4 to 7 inches long and about as broad; light green and smooth above, and paler below. The base of the petiole is hollow and in falling off exposes the winter bud. The multiple FRUIT forms a ball about 1 inch in diameter, which hangs on its flexible peduncle—3 to 5 inches long. During early spring the fruit ball breaks up, and the small nutlets are scattered widely by the wind.

The WOOD is hard and moderately strong, but decays rapidly in the ground. It is used for butchers’ blocks, tobacco boxes, furniture, and interior finish.

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HAWTHORN (Haw)
Crataegus L.

Hawthorn, as treated here, represents about 30 different species and varieties distributed throughout the state. Members of the group occur on the poorest and richest soils, on the shallowest and deepest, and on the limestone hills as well as on the rich bottom and swamp lands. Most of the forms have a common likeness in possessing thorns and bearing white blossoms and red or yellow fruit. Some species are planted as ornamental trees, but otherwise the group is of little commercial value.

HAWTHORN (Leaf and twig, two-thirds natural size; fruit, one-half natural size)

The BARK is generally thin, gray in color, and on the old stems broken up into thin, narrow scales.

The LEAVES are simple, alternate, mostly oval or wedge-shaped, notched on the edges, and usually from 2 to 3 inches long.

The FLOWERS are white, some fragrant and others with a slightly unpleasant odor; they appear in early spring. The FRUIT varies from globular to oblong, from ¼ to ¾ inch in diameter; some when ripe have a pulpy, sweet, edible flesh, surrounding from 1 to 5 bony seeds.

The WOOD is strong, tough, heavy, hard, but rarely used for any purpose.

Many species of birds are attracted to these trees and bushes by the fruit and for the protection offered for nesting. Blueberry hawthorn, C. brachyacanthu, fruit ripens in the late summer and is valuable for deer food. The fruit of most species ripens in the fall, and one or two varieties yield a fruit highly prized for making jelly.

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RIVERFLAT HAWTHORN (Mayhew)
Crataegus opaca Hook. and Arn.

This species is a native of East Texas, being found as far west as the Trinity River. It grows along rivers at the edges of swamps and ponds, where water stands a part of the year. These trees often form extensive thickets. The FRUIT of this haw, unlike other Texas haws, matures in late April or May. After the fruit is gone, it is more difficult to distinguish it from other haws. It is of low, spreading habit, sometimes becoming a tree 20 to 30 feet high and about a foot in diameter. It usually bears a few thorns about 1 inch long on branches two years old.

RIVERFLAT HAWTHORN (Leaves, flowers, and fruit, one-half natural size)

On old trees the BARK is deeply fissured and divided into dark brown, persistent scales. The wood has no commercial value.

The LEAVES are about 2 inches long, pointed, narrowing toward the stem, finely toothed from the middle of the tip, sometimes slightly lobed, dull green, and rather downy beneath.

The FLOWERS appearing in March are the largest of Crataegus, 1 inch in diameter, white, and borne in clusters of only 2 or 3. The FRUIT, an unusually large haw, is sometimes nearly an inch in diameter. When fully ripe, these haws are scarlet, lustrous, mellow, and pleasantly acid. The fruit is gathered in large quantities for making mayhaw jelly.

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MEXICAN PLUM
Prunus mexicana S. Wats.

This common wild plum is a small tree reaching 20 to 25 feet in height and 8 to 10 inches in diameter. Uncommonly it attains only large shrub size.

The BARK is dark, varying from gray to nearly black. There are curling scales on young branches but on old trunks the bark becomes rough and deeply furrowed.

MEXICAN PLUM (Leaf, three-fourths natural size; flowers and fruit, one-half natural size)

The LEAVES, when mature, are alternate, oval, abruptly pointed, finely and doubly toothed along the margin, dark yellow-green, smooth and shiny, thick and firm, 2 to 3 inches long by 1 to 2 inches wide, narrowed or rounded at the base and prominently veined on both surfaces.

The white FLOWERS appear in numerous small clusters in March before the leaves. With a profusion of flowers, this tree is one of the delights of early spring in the woods. The FRUIT, or plum, which ripens in late summer, is dark purple-red color with a bluish “bloom”, about 1¼ inches in diameter, and varies widely in its palatability. The stone is about ¾ inch long, and smooth. The dorsal edge is ridged; the ventral edge grooved.

This species of plum does not sucker to form thickets, is drought resistant, and has been used for grafting stock for the production of commercial plums.

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FLATWOODS PLUM (Black Sloe)
Prunus umbellata Ell.

This shrub or small tree with a short, often crooked, or inclining trunk and a flat-topped head and slender branches is rarely over 20 feet high. Branchlets at first covered with a dense, pale pubescence, soon become smooth and bright red during the first year and dull dark brown the second year. It occurs throughout the eastern portion of the state.

FLATWOODS PLUM (Two-thirds natural size)

BARK ¼ inch thick, dark brown, almost black, and broken diagonally into small, hard, appressed, persistent scales. LEAVES bright bronze-green with red margins and petiole when they unfold; at maturity, usually less than 2½ inches long, ovate-lanceolate to oblong with a rounded or slightly cordate base; leaf thin, dark green above, paler below; usually furnished with two large dark glands at the base; margins finely and sharply serrate with incurved teeth.

Small white FLOWERS appearing in umbels of 3 or 4 flowers before the leaves. Flowers ⅔ inch in diameter. FRUIT a drupe on a stem ½ to 1 inch long, round, ½ inch in diameter, and with a tough, black, yellow, or bright red skin covered with a glaucous bloom, and with thick, acid flesh. Stone flattened, brittle-walled, and wrinkled. Dorsal edge grooved; ventral edge with conspicuous ridge. The fruit is relished by deer.

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BLACK CHERRY
Prunus serotina Ehrh.

A medium-sized tree, up to about 70 feet high and 1 to 3 feet in diameter, black cherry is found in eastern Texas and in the mountains of West Texas. The forest-grown trees have long clear trunks with little taper. Open-grown trees have short trunks with many branches and irregular spreading crowns. The BARK on branches and young trunks is smooth and bright reddish-brown, marked by conspicuous, narrow, white, horizontal lines, and has a bitter almond taste. On the older trunks the bark becomes rough and broken into thick, irregular plates.

BLACK CHERRY (Leaf and fruit, one-third natural size; twig, two-thirds natural size)

The LEAVES are alternate, simple, oval to lance-like in shape, 2 to 6 inches long and 1-1½ inches wide, with fine, incurved serrations, shiny above, and paler beneath. Cattle eating wilted leaves may be fatally poisoned.

The FRUIT is a dull purplish-black drupe, about as large as a pea, and is borne in long hanging panicles. The fruit ripens in late summer, is edible though slightly bitter, and is relished by wildlife.

The WOOD is reddish-brown with yellowish sapwood, moderately heavy, hard, strong, fine-grained, and does not warp or split in seasoning. With the exception of black walnut, cherry lumber has a greater unit value than any other hardwood of the eastern United States. Cherry is prized for furniture.

The SOUTHWESTERN BLACK CHERRY, Prunus serotina var. rufula (Woot. and Standl.) McVaugh is found in the Guadalupe Mountains of West Texas. At least five other cherry species are native to Texas. All have shrubby growth.

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CAROLINA LAURELCHERRY
Prunus caroliniana (Mill.) Ait.

Called by many local names such as cherry laurel, wild peach, and mock orange, this species is native to the eastern portion of the state to the valley of the Guadalupe River, where it is found on deep rich moist bottomlands. It is apparently free from disease and quite adaptable for landscape planting. It is usually a small tree but sometimes reaches a height of 50 to 60 feet and 18 inches in diameter when cultivated. The partially withered leaves and young branches can be fatal to animals browsing upon them, owing to presence of poisonous hydrocyanic acid.

CAROLINA LAURELCHERRY (Two-thirds natural size)

The BARK is rather smooth, gray, and marked by almost black blotches.

The LEAVES are persistent, oblong-lanceolate, with a few tiny sharp teeth along the margins, dark lustrous green above, paler below. They cling until the second year.

The small white FLOWERS come in clusters, in early spring. The FRUIT, a lustrous black drupe, ripens in autumn, and clings until the following spring. The fruit is eaten by some birds.

The WOOD is heavy, hard, strong, close-grained, rich brown in color, with a thick, lighter colored sapwood.

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EBONY BLACKBEAD (Texas Ebony)
Pithecellobium flexicaule (Benth.) Coult.

This beautiful evergreen occurs as a small tree or shrub in South Texas from Matagorda Bay and south into Mexico. Its short spreading branches, forming a wide, round head, carry stout zigzag brachlets, dark reddish-brown or light gray, armed with persistent stipular spines ¼ to ½ inch long.

The LEAVES, about 2 inches long, are feather-like (twice pinnate) with sessile, leathery leaflets that are dark green and shiny on the upper surface, paler on the lower surface, and ¼ to ⅓ inch long.

EBONY BLACKBEAD (Leaf and fruit, two-thirds natural size)

The FLOWERS are light yellow or cream colored, fragrant, and bloom from June to August in dense cylindric or interrupted spikes 1½ inches long.

The FRUIT ripens in the fall and remains on the branches until after the flowering season the following year. It is a flattened, curved, hairy pod, 4 to 6 inches long, and about 1 inch wide.

The WOOD is very heavy, hard, close-grained, dark red-brown tinged with purple, almost indestructible when used for fence posts, and valued for cabinet work.

The tree is considered the most valuable species in the lower Rio Grande Valley. Mexicans use the seed as a substitute for coffee.

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CATCLAW ACACIA (Una de Gato)
Acacia greggii A. Gray

Found on dry gravelly mesas, the sides of low canyons and the banks of mountain streams in the Rio Grande Valley and westward, this small tree rarely reaches a height of 30 feet, and has a trunk up to 12 inches in diameter. The top or head consists of numerous spreading branches and smooth pale brown or red branchlets, armed with stout curved spines.

CATCLAW ACACIA (Fruit and leaves, one-half natural size)

The small, bipinnately compound LEAVES with 1 to 3 pinnae, the leaflets of which are about ¼ inch long.

The fragrant yellow FLOWERS appear during the summer in dense, oblong, pubescent spikes, usually 2 to 3 in a cluster at the end of a branch.

The FRUIT matures by midsummer into a twisted or distorted pod, 2 to 4 inches long by about ¾ inch wide. The pod is smaller between each of the 6 to 8 seeds, which are nearly round, flattened, dark brown and shiny. The pods hang unopened on the branches until the winter or the following spring.

The WOOD is heavy, hard, strong, close-grained, durable, and clear brown or red in color.

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GREGG LEADTREE
Leucaena greggii S. Wats.

This small, beautiful tree grows wild in western Texas from the upper San Saba River to Devil’s River. It grows along the banks of streams and in moist ravines, and reaches a size of 15 to 20 feet in height and 4 to 5 inches in diameter.

GREGG LEADTREE (Leaf and fruit, two-thirds natural size)

The LEAVES are finely and doubly compound; with 10 to 14 feather-like pinnae, each containing from 30 to 60 small leaflets, arranged along opposite sides of the rachis. Each leaflet is elliptical, grayish-green or bluish-green, smooth, and about ⅓ inch long.

The white FLOWERS are clustered in dense round heads, about 1 inch in diameter, borne on a long peduncle. Each tiny flower has protruding hairs which give the head a fuzzy appearance.

The pods, or FRUIT, are 6 to 8 inches long and about ½ inch wide, flat, and with narrow wing-like edges.

The WOOD is heavy, hard, close-grained, clear brown streaked with red, with thin, clear sapwood.

Two other species of mimosa are found in Texas: L. pulverulenta (Schlect.) Benth., found above the mouth of the Rio Grande; and L. retusa Benth., in Jeff Davis, Kimble, Real, Uvalde, and Valverde Counties.

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HONEY MESQUITE
Prosopis juliflora var. glandulosa (Torr.) Cockerell

This well-known small tree is found in the central and western part of the state. The short trunk, usually only 6 to 8 inches in diameter, divides into many branches forming a loose, open top or crown.

The root system is very large, consisting of a thick taproot sometimes extending downward to a depth of 30 to 40 feet, with many radiating roots.

HONEY MESQUITE (One-fourth natural size)

The LEAVES are pinnately compound, consisting of 12 to 20 leaflets attached along a central rachis, or “stem”, 8 to 10 inches long. The leaflets are often 2 inches long, smooth, dark green, and pointed. Near their bases are small spines.

The fragrant FLOWERS are tiny and in clusters (spikes) from 2 to 4 inches long. The FRUIT is a pod about 4 to 9 inches, narrowed between each of the 10 to 20 seeds enclosed in a thick sweet pulp, used by the natives as food and eagerly sought by wildlife and livestock.

The WOOD is heavy, hard, and dark reddish-brown in color. It is much used for fuel and, because it is durable in the ground, for fence posts.

Mesquite has long been designated as P. juliflora (Sw.) D.C., with the varieties glandulosa (Torr.) Cockerell and velutina (Woot.) Sarg. found in Texas.

WESTERN HONEY MESQUITE (P. juliflora var. torreyana L. Benson) occurs in southern and Trans-Pecos regions of Texas. This species is usually a shrub or sometimes a small tree.

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EASTERN REDBUD
Cercis canadensis L.

Eastern Redbud, sometimes called Judas-tree from its oriental relative of that name, is a small tree scattered through the woods of East Texas to the Brazos River. It attains a height of 25 to 50 feet and a diameter of 6 to 12 inches. Its stout branches usually form a wide flat head.

EASTERN REDBUD (Twig, two-thirds natural size; fruit and leaf, one-third natural size)

The BARK of the trunk is divided into long narrow plates, the bright red-brown surface separating into thin scales.

The LEAVES are alternate, heart-shaped, entire, 3 to 5 inches long and wide, glossy green, turning a bright clear yellow in autumn.

The conspicuous, bright purplish-red FLOWERS are in clusters along the twigs and small branches, and appear before or with the leaves in early spring.

The FRUIT is an oblong, flattened, many-seeded pod, 2 to 4 inches long, reddish during the summer and often hanging on the tree through the following summer.

The WOOD is heavy, hard, not strong, rich dark brown in color, and of little commercial importance. The redbud is cultivated as an ornamental tree and for that purpose might be more generally planted in this state.

Several varieties of Cercis canadensis have been described in Texas.

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HONEYLOCUST
Gleditsia triacanthos L.

Honeylocust occurs naturally in the eastern part of the state to the Brazos River. It grows under a wide variety of soil and moisture conditions and is a popular tree for planting in the drier portions of Texas. It reaches a diameter of 30 inches and a height of 75 feet. The BARK on old trees is dark gray and is divided into thin, tight scales. The strong, straight or branched, brown, sharp and shiny thorns, which grow on the 1-year-old wood and remain for many years, are sufficient to identify the honeylocust.

The LEAF is pinnate or feather-like, with 18 to 28 leaflets; or it is bi-pinnate, consisting of 4 to 7 pairs of pinnae, each 6 to 8 inches long.

HONEYLOCUST (Twig, three-quarters natural size; leaves and fruit, one-quarter natural size)

The FRUIT, a 10 to 18 inch pod, is often twisted, 1 to 1½ inches wide, flat, dark brown or black when ripe, and contains a yellow sweetish pulp and dark brown seeds. The seeds are hard and separated by pulp. The pods are eaten by many animals, and as the seeds are hard to digest, many are widely scattered from the parent tree.

The WOOD is coarse-grained, hard, strong, and moderately durable in contact with the ground.

Honeylocust is a good tree to substitute for the black locust which has been almost exterminated in West Texas by the locust borer.

TEXAS HONEYLOCUST (G. texana Sarg.), found in the Brazos River bottomlands, is reported to be a hybrid between G. triacanthos and G. aquatica.

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WATERLOCUST
Gleditsia aquatica Marsh.

In river bottoms and swamps along the Gulf Coast to the Brazos River and north to Arkansas is found the waterlocust, a close relative of the well-known black locust. It can be distinguished by the small pod having one seed, rarely two or three.

WATERLOCUST (One-half natural size)

The waterlocust reaches a height of 60 feet and diameter up to 3 feet. The trunk is usually short, dividing into several spreading, and often distorted, branches. The branchlets have sharp spines from 3 to 5 inches in length, dark red and shiny.

The pinnately compound LEAVES are 5 to 8 inches long with 12 to 20 leaflets arranged on opposite sides of the leaf rachis. Each leaflet is an inch or so in length, oblong, sometimes slightly toothed on the edge, dull green or yellow-green above and dark green on the lower surface.

The FLOWERS appear in small clusters of green flowers on purple pedicels in a raceme 3 to 4 inches long, and grow from the axil of the leaf rachis and twig. The flowers bloom well after the leaves are out. The FRUIT pods hang in graceful racemes. The pods are 1 inch wide and 1 to 2 inches long, thin walled, tough, papery, chestnut brown, and shiny. The SEEDS are flattened, nearly round, about ½ inch wide, and orange-brown.

The WOOD is heavy, hard, strong, light reddish-brown, and surrounded by a wide band of clear yellow sapwood.

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BLACK LOCUST (Yellow Locust)
Robinia pseudoacacia L.

Black locust is not native to Texas, so far as known, but has been widely planted here and has escaped from cultivation. Black locust requires deep, well-drained, moist soil for good growth. It grows indifferently to poorly on well-drained, dry sites. Of late years it has been severely damaged by the locust borer and is no longer recommended for planting in pure stands.

BLACK LOCUST (Leaf and fruit, one-third natural size; twig, two-thirds natural size)

The twigs and branchlets are armed with paired, straight or slightly curved, sharp, strong spines, sometimes as much as 1 inch in length, which remain attached to the outer bark for many years.

The LEAVES are pinnate, or feather-like, from 6 to 10 inches long, with 7 to 19 oblong, thin leaflets.

The FLOWERS are fragrant, white or cream-colored, and appear in graceful pendant racemes.

The FRUIT is a pod from 3 to 5 inches long containing 4 to 8 small hard seeds which ripen late in the fall. The pod splits open during the winter, discharging most of the seeds. Some seeds usually remain attached to each half of the pod.

The WOOD is yellow, coarse-grained, heavy, very hard, strong, and durable in contact with the soil. It is used extensively for fence posts, poles, tree nails, insulator pins, and occasionally for lumber and fuel.

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HERCULES-CLUB (Prickly-Ash)
Zanthoxylum clava-herculis L.

This tree is a native of East Texas and ranges westerly to the valley of the Colorado River and northward to Dallas and Tarrant Counties, and to some extent to the Rio Grande Valley. It is a small tree, seldom over 30 feet in height, with a short trunk usually under 1 foot in diameter. It seems to prefer a well-drained, light, sandy soil, and is often found growing on bluffs near rivers.

HERCULES-CLUB (Leaf and fruit, one-half natural size; spines natural size)

The BARK is the most characteristic feature of this tree. It is gray, and with numerous corky tubercles. The aromatic inner bark, with its strong pungent juice, has given this tree a number of local names, such as “tingle-tongue”, and “toothache tree.” The inner bark was a favorite in old-time home remedies for the relief of toothache.

The LEAVES are compound, 5 to 8 inches long, with 7 to 17 ovate, toothed, bright green leaflets.

The small, pale green FLOWERS, borne in loose, wide-branched cymes, 4 to 5 inches long and 2 to 3 inches wide, bloom in early spring when the leaves are almost half grown. The small FRUIT, a one-seeded carpel, ripens in early summer. The seeds hang outside the carpels and are eaten by birds.

The soft, light brown WOOD has no special known value.

A variety, fruiticosum (A. Gray) S. Wats., is a shrubby form found in West Texas. It has short, often 3-foliate, pubescent leaves and blunt, leathery leaflets.

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COMMON HOPTREE (Wafer-Ash)
Ptelea trifoliata L.

This small tree or large shrub is found scattered over the eastern portion of the state. The bark and leaves are bitter and strong-scented and possess tonic qualities.

The hoptree has a straight, slender trunk 6 to 8 inches in diameter and seldom reaches a height of more than 20 feet.

COMMON HOPTREE (Fruit, three-fourths natural size; leaf, one-third natural size)

The LEAVES are composed of 3 leaflets, sometimes 5, each of which is oval or pear-shaped and pointed, about 4 to 6 inches long and 2 to 3 inches wide, and dark green on the upper surface. The central leaflet is the largest.

The FRUIT consists of a small, round, 2-seeded, winged “key” or “samara”, resembling somewhat the familiar paper caps for toy pistols. The seeds occur in dense drooping clusters and hang on the tree over winter.

The WOOD is heavy, hard, yellowish-brown, and close-grained. The shrub is often planted as an ornamental.

94

SHINING SUMAC (Dwarf or Flameleaf Sumac)
Rhus copallina L.

Shining sumac is found growing naturally west to the San Antonio River. It is more commonly a shrub than a tree and grows in clumps and thickets around the edges of the fields and in other open places. The leaves turn crimson in the fall and add a vivid note to the autumn coloring. The tree spreads by means of shallow root-runners.

The BARK is almost smooth, with horizontal splashes of light and dark gray, and many small excrescences. This papery outer bark cracks at irregular intervals, exposing spots of reddish-brown beneath.

SHINING SUMAC (Leaf and fruit one-half natural size)

The compound LEAVES are alternate, 6 to 8 inches long, with 9 to 21 small ovate-lanceolate leaflets, glossy green above, downy beneath. This sumac is easily distinguished from others by the fact that the leaf rachis is winged. The leaves are rich in tannin, and are used in large quantities for curing leather, and for the manufacture of dyes.

The tiny, pale green FLOWERS are borne in compact conical, panicles in July. Male and female flowers are borne on separate trees. The small FRUIT is red, covered with short hairs, and has an acid taste. The fruits cling, and are eaten by birds in late winter.

The reddish-brown WOOD is soft, light, and coarse-grained.

PRAIRIE SUMAC (R. lanceolata [A. Gray] Britton) is found on the prairies of eastern Texas to the valley of the Rio Grande, often forming thickets on the banks of small streams. This species is distinguished by its narrow, acute leaflets and its larger flowers and fruit.

95

POISON-SUMAC
Toxicodendron vernix (L.) Kountze

All parts of this beautiful plant give off toxic oils that may irritate and blister the skin like the oils of poison ivy. Poison-sumac may grow as a shrub with several clustered stems, or as a tree occasionally 25 feet high with a trunk 5 to 6 inches in diameter. The slender, smooth branchlets are at first reddish-brown with orange-colored lenticels, later becoming light gray and marked with elevated and conspicuous leaf-scars.

POISON-SUMAC (Leaf, one-half natural size; fruit often larger)

The compound, alternate LEAVES are quite different from those of other sumacs, shaped more like those of ash, for which reason it is often called “poison ash.” The leaf-stems are always reddish, and usually quite conspicuous. The leaves are 7 to 14 inches long, with 7 to 13 ovate-oblong leaflets, 3 to 4 inches long. The leaflets are bright green above, paler beneath, usually with a red midrib.

The small FLOWERS are borne in panicles much less compact than those of other sumacs. The FRUIT is a lustrous white drupe, born in slender, drooping panicles. The fruit matures in September and is eaten by birds and rabbits. The sap can be used to make a black, durable varnish.

96

AMERICAN HOLLY
Ilex opaca Ait.

American holly is found on rich, moist soils of bottomlands in East Texas and westward to Wilson County. A tree often 50 feet high, frequently attains heights of 80 to 100 feet and diameters up to 4 feet. A large specimen may be seen at the Texas Forest Service’s Indian Mound Nursery near Alto.

AMERICAN HOLLY (Leaf and fruit, two-thirds natural size)

The BARK is light gray and roughened by wart-like growths. The numerous, short, slender branches form a dense pyramidal head of striking dark green color which is more pronounced when the conspicuous red drupes are present.

The LEAVES are simple, alternate, rather oval, thick and leathery, 2 to 4 inches long and usually armed with spiny teeth. They remain on the branches three years, dropping off in the spring.

The FLOWERS are small and whitish; male and female flowers are usually borne on separate trees. The FRUIT, ripening late in the fall on the trees bearing female flowers, is dull red or sometimes yellow, round or somewhat oval-shaped berry-like drupe about ¼ inch in diameter and with 4 to 6 grooved, ribbed nutlets.

The WOOD is light, tough, not strong, white when cut, turning brown when aged. Valued and much used for cabinet making, interior finish, and turnery. Many of the largest and best holly trees have been cut and marketed.

Holly is a highly desirable Christmas decoration and a desirable ornamental tree for yards. Wild holly is becoming scarce. Excessive cuttings should be avoided.

97

YAUPON
Ilex vomitoria Ait.

This close relative of the American holly is found in East Texas to Matagorda Bay, Rio Blanco and the Guadalupe River, and north to southern Arkansas. On the rich bottomlands of eastern Texas, yaupon is a small tree, 20 to 25 feet high with a trunk rarely over 6 inches in diameter; elsewhere it is a shrub.

The LEAVES are 1 to 2 inches long, ¼ to 1 inch wide, thick, glossy green above, paler below, and persistent for 2 or 3 years.

YAUPON (Two-thirds natural size)

The FLOWERS, male and female, are borne on separate plants. The FRUIT, a scarlet berry-like drupe, is produced in great abundance by the female plant.

The WOOD is of little value except for fuel.

Yaupon is used in the South as a hedge plant, and is much prized for Christmas decorations. A tea made from leaves was once popular with the Indians. The plant is now grown on the Atlantic Coast for the commercial production of yaupon tea for medicinal purposes.

I. decidua Walt. known as POSSUM HAW (WINTER BERRY) is similar to yaupon, but the leaves shed in the fall; the fruits, which remain over winter, are orange to orange-scarlet in color.

98

SILVER MAPLE
Acer saccharinum L.

Silver, or soft, maple is found on moist land and along streams in the extreme eastern part of the state. In its best region of growth, the valley of the lower Ohio River, it attains heights of 100 feet or more and diameters of 3 feet or over.

SILVER MAPLE (Twig and fruit, one-half natural size; leaf, one-third natural size)

The BARK on old trunks is dark gray and broken into long flakes or scales. The twigs are slender, brittle, reddish-brown, and shiny.

The buds are rounded, red or reddish-brown, blunt-pointed, generally like those of red maple.

The simple, opposite LEAVES have from 3 to 5 lobes ending in long points with toothed margins and separated by deep angular sinuses or openings; the leaves are pale green on the upper surface, silvery-white underneath, and have a red petiole.

The FLOWERS arising from the large prominent flower buds are a greenish-yellow color and appear in clusters in the spring before the leaves. The FRUIT ripens in the spring and consists of a pair of wing samaras or “keys” with wings 1 to 2 inches long on a slender, flexible, thread-like peduncle about an inch long.

The WOOD is soft, weak, even-textured, rather brittle, easily worked, and decays readily when exposed. It is occasionally used for flooring, furniture and fuel.

The silver maple grows rapidly and has been planted in Texas as a shade tree. It is somewhat undesirable because of its brittleness and susceptibility to insects and fungus diseases.

99

RED MAPLE
Acer rubrum L.

Red maple is abundant in low moist areas in the eastern part of the state. It is usually a medium-sized tree, quick-growing, and relatively short-lived. It is used as a shade tree, though of inferior quality for this purpose. The BARK is smooth and light gray on young limbs and trunks, and dark gray and rough on old limbs and trunks.

The LEAVES are 2 to 5 inches long and have from 3 to 5 pointed, saw-toothed lobes separated by sharp angular sinuses or openings. The upper leaf surface when mature is light green, the lower surface whitish and partly covered with pale down. In autumn the leaves turn to brilliant shades of red, orange, and yellow.

RED MAPLE (Leaf and fruit, one-third natural size; twig, one-half natural size)

The red FLOWERS appear in dense clusters in early spring before the leaves, the buds turning a deep red sometimes before they open. The winter buds are small, red, and round or blunt-pointed. The FRUIT ripens in the late spring or early summer. It consists of pairs of winged samaras, or keys, ½ to 1 inch in length, on a long drooping peduncle (fruit stem), red, reddish-brown, or yellow in color.

The WOOD, known commercially as soft maple, is heavy, close-grained, rather weak, and of a light brown color. It is used in the manufacture of furniture, and for turnery, woodenware, and fuel.

100

BOXELDER
Acer negundo L.

Boxelder, the only Texas maple with compound leaves, is a native of eastern and southern Texas to the lower Rio Blanco River. It is generally found on the banks of streams and lakes and the borders of swamps. It grows rapidly, making a quick shade, and is quite shapely. The branches are brittle and break easily. The tree is short-lived and rather subject to disease. It sometimes attains a height of 50 to 60 feet, with a trunk 2 feet in diameter, but is usually smaller.

BOXELDER (Leaf and fruit, one-third natural size; twig, two-thirds natural size)

The BARK of the twigs is green; of the trunk grayish-brown, divided into broad, rounded ridges, and separating on the surface into short, thick scales.

The LEAVES are opposite, compound, usually with 5 leaflets, occasionally 3 or 7. The leaflets are 2 to 4 inches long, coarsely and irregularly toothed, light green above, paler beneath.

The tiny FLOWERS are borne in drooping clusters. The FRUIT is like that of the other maples, green, turning light tan when mature. Unlike the seeds of other maples, they cling until after the leaves are shed.

The WOOD is creamy-white, light, and soft and weak but close-grained. It is sometimes used in other states for the manufacture of low grade furniture and interior finish; it is also used for woodenware, cooperage, and paper pulp.

101

OHIO BUCKEYE
Aesculus glabra Willd.

Ohio buckeye occurs as far west as eastern Texas along streams in rich soils. Though often only a shrub, it becomes a medium-sized tree in rich alluvial bottoms. Its leaves and fruit are poisonous to stock.

The BARK is white and, on old trees, divided or broken into light brown flat scales, which make the stems of the tree rough; the bark is ill-smelling when bruised.

OHIO BUCKEYE (Twig, two-thirds natural size; nut, one-third natural size; leaf, one-fourth natural size)

The LEAVES are opposite, palmately compounded, with 5 to 7 smooth, pale green leaflets, ill-smelling when bruised. The leaves usually turn yellow during the summer.

The FLOWERS are cream-colored and appear in clusters, 5 to 8 inches long, in April or May.

The FRUIT is generally rounded, pale brown, generally thin-walled, roughened with blunt prickles or warts, and breaking into 2 to 3 valves, disclosing the bright shiny seeds 1 to 1½ inches wide.

The WOOD is light, soft and weak, and decays rapidly when exposed. It is used for woodenware, artificial limbs, paper pulp, lumber, and fuel.

Aesculus pavia L., the RED BUCKEYE, is found as a shrub in Comal and Wilson Counties and is common through eastern Texas to Bexar and Kendall Counties, as a shrub 9 to 12 inches high. This species was formerly classified as A. discolor Parsh and A.d. var. Mollis (Raf.) Sarg.

102

WESTERN SOAPBERRY (Wild China-Tree)
Sapindus drummondii Hook. Arn.

This species, sometimes called Indian soap plant, grows on moist clay soils or dry limestone uplands. It ranges through eastern Texas to New Mexico and the Rio Grande, becoming a tree 40 to 50 feet high and 1 to 2 feet in diameter, with usually erect branches, and branchlets at first slightly many-angled.

WESTERN SOAPBERRY (Leaf, two-fifths natural size; fruit, one-third natural size)

The BARK is broken by deep fissures into long narrow plates which in turn are broken on the surface into small red-brown scales.

The LEAVES appearing in March or April, bear 4 to 9 pairs of alternate, opposite or both, lance-shaped leaflets which are pale, yellow-green, about 2½ inches long and ½ to ⅔ inch wide. The leaves fall in autumn or early winter.

The FLOWERS are whitish, in large, dense panicles.

The FRUIT, round yellow berries, ½ inch in diameter, and containing dark brown seeds, ripen in September and October and fall in the spring.

The WOOD is heavy, strong, close-grained, light brown tinged with yellow. It splits easily into thin strips and is used for cotton basket and the frames of pack saddles.

103

AMERICAN BASSWOOD (American Linden)
Tilia americana L.

Three species of basswood are reported to grow in Texas from the Arkansas line to the Brazos River and westward to Uvalde, Kerr and Bandera Counties, usually on rich, moist soils. They are rarely over 50 feet tall and 12 inches in diameter.

The BARK is light brown and deeply furrowed.

AMERICAN BASSWOOD (Leaf and fruit, one-third natural size; twig, one-half natural size)

The LEAVES are more or less heart-shaped, 3 to 6 inches long, thin, saw-toothed, smooth on both sides in some species, but woolly on the under surface of others.

The fragrant FLOWERS, a favorite of bees, are yellowish-white, in drooping clusters opening in early summer, and the flower-stem is united to the middle of a long, narrow, leaf-like bract.

The FRUIT, a dry, 1 to 2-seeded nut-like drupe, ¼ to ½ inch in diameter, is covered with short, thick, gray-brown wool. It remains attached in clusters to the leafy bract, which later acts as a wing to bear the fruit away in the wind.

The WOOD is light, soft, tough, not durable, and light brown in color. It is used in states where the growth is better for the manufacture of pulp, woodenware, furniture, trunks, excelsior, and many other articles. The principal use of basswoods in Texas is for shade and ornament.

104

DEVILS-WALKINGSTICK (Hercules-Club)
Aralia spinosa L.

This tree, a native of Northeast Texas, is armed from the ground up with many sharp spines, a characteristic that has given the tree many names such as Hercules-club, prickly-elder, and prickly-ash. The last name properly belongs to another tree. Devils-walkingstick possesses sufficient beauty to compensate for its spitefulness. The tree is usually small, but occasionally attains a height of 30 feet, the leaves forming a flat-topped, spreading crown.

DEVILS-WALKINGSTICK (Branch, one-half natural size; leaf and fruit greatly reduced)

The brown BARK is divided by broad shallow fissures into circular, horizontal ridges. The sharp spines along its trunk best identify this tree.

The LEAVES are doubly compounded, or bi-pinnate, the main rachis (leaf-stem) 3 or 4 feet long, clasping the stem with an enlarged base, and leaving conspicuous scars when they fall. The oval leaflets are toothed, pointed, dark green above and paler beneath. They turn yellow in autumn.

In mid-summer each plant bears one immense panicle of small, white FLOWERS, which rises well above the leaves. The tree presents its most striking appearance in autumn when the small black FRUIT ripens, for the fruit-stems turn a rich wine-red. Birds eat the juicy drupes. The WOOD is of no commercial importance.

105

BLACK TUPELO (Blackgum)
Nyssa sylvatica Marsh.

Black gum, often called sour gum, is found in eastern Texas to the valley of the Brazos River; usually in swampy wet soil, but sometimes on dry slopes with the oaks.

The BARK on younger trees is furrowed between flat ridges, and gradually develops into quadrangular blocks that are dense, hard, and nearly black.

BLACK TUPELO (Twig, leaf, and fruit one-half natural size)

The LEAVES are simple, 2 to 3 inches long, entire, obovate to elliptic, shiny, and dark green in color. In the fall the leaves turn brilliant red.

The greenish FLOWERS on long, slender peduncles appear in early spring when the leaves are about one-third grown. They are usually of two kinds, the male in many-flowered heads, and the female in two or several-flowered clusters on different trees. The FRUIT is drupe-like, dark blue ⅔ inch long, containing a single hard-shelled stone, and is borne 2 to 3 in a cluster on 1 to 2½-inch peduncles.

The WOOD is very tough, cross-grained, not durable in contact with the soil, hard to work, and warps easily. Once considered a weed tree, the species is now valuable for basket veneer, box boards, and paper pulp. In the old days, the hollow trunks were used for “bee-gums.”

Swamp tupelo (N. s. var. biflora [Walt.] Sarg.), found mainly on the Coastal Plain, has narrowly obovate to narrowly oblanceolate leaves and fruiting peduncles ⅜ to 1⅜ inches long. The base of the trunk is swollen when submerged.

106

WATER TUPELO (Cotton-Gum or Tupelo-Gum)
Nyssa aquatica L.

Water tupelo is found only in deep river swamps or coastal swamps which are often flooded. The commonly enlarged base, large-sized fruit, hanging on a long peduncle (stem), and the brittleness of the twigs, serve to distinguish this species from the black gum. It forms a tall, often slowly tapering somewhat crooked trunk 50 to 75 feet in height and 2 to 3 feet in diameter. The spreading small branches form a narrow, oblong or pyramidal head. The branches are generally smooth and light brown in color. The BARK of the trunk is thin, dark brown and furrowed up and down the trunk.

WATER TUPELO (Leaf and fruit, one-third natural size; twig, two-thirds natural size)

The LEAVES are simple, ovate or oblong in shape, acute and often long-pointed. When mature they are thick, dark green and lustrous on the upper side, pale and somewhat downy on the lower side, 5 to 7 inches long and 2 to 4 inches wide, wedge-shaped at the base, and entire or irregularly toothed on the margin. The petiole is stout, 1 to 2 inches long, grooved, and enlarged at the base.

The FLOWERS, which appear in March or April are of two kinds, usually borne on separate trees, the male flowers in dense round clusters, and the female flowers solitary.

The FRUIT, ripening in early fall, is a dark purple drupe, oblong or obovate in shape, about 1 inch long, with a thick, tough skin enclosing a flattened stone, and borne on a slender peduncle 3 to 4 inches long.

The WOOD is light, soft, and not strong. It is used for woodenware, broom handles, fruit and vegetable baskets, marketed as tupelo or bay poplar lumber, and paper pulp.

107

FLOWERING DOGWOOD
Cornus florida L.

Dogwood grows in the forests of eastern Texas, usually under the larger forest trees. It is a small tree, up to 30 feet high and 12 inches in diameter, occasionally larger, with a rather flat and spreading crown and short, often crooked trunk.

FLOWERING DOGWOOD (Leaf and fruit, one-half natural size; twig, two-thirds natural size)

The BARK is reddish-brown to black and broken up into small 4-sided, scaly blocks.

The LEAVES are opposite, ovate, 3 to 5 inches long, 2 to 3 inches wide, pointed, entire or wavy on the margin, prominently veined, bright green above, pale green or grayish beneath.

The FLOWERS, which unfold from the conspicuous, round, grayish, winter flower buds before the leaves come out, are small, greenish-yellow, arranged in dense heads surrounded by large white or pinkish petal-like bracts, which appear like large spreading flowers 2 to 4 inches across.

The FRUIT is a bright scarlet drupe one-half an inch long and containing a hard, two-celled nutlet containing 1 or 2 seeds. Usually several fruits are contained in one head, and are relished by birds, squirrels, and other animals.

The WOOD is hard, heavy, strong, close-grained, and brown to red in color. It is in demand for cotton-mill machinery, turnery, handles, and forms.

With its masses of early spring flowers, its dark red autumn foliage, and bright red berries, dogwood is probably our most ornamental native tree. It should be used more extensively in eastern Texas for ornamental planting.

108

TREE SPARKLEBERRY (Farkleberry)
Vaccinium arboreum Marsh.

In the coastal belt of eastern Texas as far as Matagorda Bay, farkleberry, or tree huckleberry, grows in moist sandy soil along the banks of ponds and streams. Although it is found from Virginia to Missouri and southward, it reaches its largest size, 20 to 30 feet, near the Gulf Coast of Texas. The crooked trunk may attain a diameter of 8 to 10 inches. Further inland it is a large shrub.

TREE SPARKLEBERRY (Nearly natural size)

The LEAVES are oval and glossy green, varying up to 2 inches in length and 1 inch in width. They are mostly evergreen, or at least persist on the twigs during the winter.

The FLOWERS are small, white, and bell-shaped, and appear in long open clusters on racemes.

The FRUIT consist of small, round, shiny, nearly black berries which ripen in the fall and, unless eaten by birds or animals, remain until spring. They have a slightly puckering but pleasing flavor.

The WOOD is heavy, hard, close-grained, and light reddish-brown. It is sometimes used for tool handles.

109

GUM BUMELIA (Woolly Buckthorn—Gum-Elastic)
Bumelia lanuginosa (Michx.) Pers.

Gum bumelia, often called false buckthorn or chittamwood, occurs along streams in sandy woods in eastern Texas to the San Antonio River and over the Edwards Plateau to Palo Pinto County. It reaches its largest development probably in Central Texas where it occasionally grows as a tree 80 feet high and 3 feet in diameter.

GUM BUMELIA (Three-fourths natural size)

The branches are short, stout, and stiff, and often armed with straight or curved spines.

The LEAVES are oblong, more or less grouped near the ends of short spurs; rounded at the apex, narrowed at the base; thick, firm, dark green and shiny above, and rusty-woolly beneath. They are from 1 to more than 2 inches long and up to ¾ inch wide.

The FLOWERS are small and open in summer, each borne on a hairy flower-stem (pedicel) about ⅛ inch long. They are borne in fascicles of 15 to 18, near the axils of the new leaves or near the leaf-scars of old leaves. The petals are white and lobed. The fruit is fleshy, black, oblong, about ½ inch in length, borne singly or in a cluster of 2 or 3, and usually dry and firm on the outside and contain a light brown, firm rounded seed. The ripe fruit falls from the tree in autumn.

The WOOD is light brown streaked with white and surrounded by a band of lighter colored sapwood. It is heavy, hard, and close-grained.

B. lanuginosa var. Rigida A. Gray, is found in western and southern Texas, while B. lycioides L. Pers., is found in eastern Texas to Milam County.

110

COMMON PERSIMMON
Diospyros virginiana L.

Persimmon is a well known tree throughout its range. It is small, rarely exceeding 50 feet in height and 18 inches in diameter, occurring in the state as far west as the Colorado River. It prefers dry, open situations, and is most abundant in old fields, though it occurs on rich bottomlands.

COMMON PERSIMMON (Leaf and fruit, one-half natural size; twig, three-fourths natural size)

The BARK of old trees is almost black and separated into thick, nearly square blocks.

The LEAVES are alternate, oval, entire, 4 to 6 inches long, dark green and shining above, paler beneath.

The small FLOWERS, which appear in May, are yellowish or cream-white, somewhat bell-shaped, the male and female flowers occurring on separate trees; the male in clusters of 2 or 3, the female solitary. They are visited by many insects.

The FRUIT is a pulpy, round, orange-colored or brown berry, an inch or more in diameter and containing several flattened, hard, smooth seeds. The fruit is strongly astringent while green, but often quite sweet and delicious when thoroughly ripe. It is relished by both man and animals, especially after a few frosty nights.

The WOOD is hard, dense, strong, the heartwood brown or black, the wide sapwood white or yellowish. It is particularly valued for shuttles, golf club heads, and similar special uses, but is not of sufficient commercial use to warrant its growth as a timber tree.

The TEXAS or BLACK PERSIMMON (D. texana Scheele) is described on page 127.

111

COMMON SWEETLEAF (Horse-Sugar)
Symplocos tinctoria (L.) L’Hér.

Sweetleaf is usually found along the borders of streams and swamps, chiefly in East Texas. It seldom grows to a height of more than 30 feet or a diameter of more than 8 inches. The slender upright branches, forming an open head, are bluish or grayish, and decidedly roughened by elevated leaf-scars, or places of attachment of the last crop of leaves.

COMMON SWEETLEAF (Fruit and flowers about natural size; leaf, one-half natural size)

The thick, shiny, dark green LEAVES, arranged alternately along the stem, vary from 5 to 6 inches in length and 1 to 2 inches in width. They remain on the twigs until spring. The leaves are sweet and eagerly sought for food by livestock.

The tiny, pale yellow fragrant FLOWERS are produced in close clusters at intervals along the branchlets. The FRUIT, a small, one-seeded drupe, has a thin dark orange or brown skin. The fruit is eaten to some extent by deer.

The WOOD is light, soft and pale red or brown, and has no commercial value. Both leaves and bark yield a yellow dye. The bitter aromatic roots have been used as a tonic.

112

TWO-WING SILVERBELL (Snowdrop Tree)
Halesia diptera Ellis

This attractive tree or shrub, may grow as a small tree, sometimes as much as 30 feet high, with a trunk 6 to 10 inches in diameter. It occurs in rich, wet woods and on the borders of swamps and streams, but is adaptable to many sites. It is found in the southeastern portion of Texas, being a native of the Gulf Region.

TWO-WING SILVERBELL (Twig, leaf, and flower one-half natural size; fruit about one-sixth natural size)

The BARK of the trunk is brown, divided by irregular longitudinal fissures, and separating on the surface into thin scales. The bark on the twigs forms long, loose, brown fibers, which makes it easy to identify during the winter.

The alternate, ovate to obovate LEAVES are bright green above, paler and downy underneath, 3 to 4 inches long, and 2 to 2½ inches wide. They are much larger on young shoots. The leaves have minute callous teeth.

The white FLOWERS, usually about 1 inch long, come before the leaves and are borne in clusters of 3 to 5. The tree is charming when thickly hung with its “silver bells.” The FRUIT is about 2 inches long with two wide, thin wings, and two (rarely three) narrow wings in between.

The WOOD is light, soft, strong, close-grained, and light brown, with thick, lighter-colored sapwood. It is not of commercial importance.

113

CAROLINA ASH (Water Ash)
Fraxinus caroliniana Mill.

Water ash is common in shaded swamps, westward to the valley of the Neches River. It forms a tree, rarely more than 40 feet high, with a trunk sometimes 12 inches in diameter, and has small branches, making a narrow, often round-topped head.

CAROLINA ASH (Leaflet and fruit, three-fourths natural size; leaf, one-fourth natural size)

The BARK is thin, light gray, and marked by large irregularly shaped round patches which separate into small, thin, close scales.

The LEAVES are compounded, 7 to 12 inches long, thick and firm when mature, with 5 to 7, ovate to oblong, finely to coarsely toothed leaflets, 3 to 6 inches long, 2 to 3 inches wide, dark green above, and paler below.

The small male and female FLOWERS appear on separate trees, in February or March. The FRUIT is elliptic to oblong-ovate, frequently three-winged, 2 inches long, ⅓ to ¾ inch wide. The wing extends below the body of the fruit and narrows into a stipitate (stalk-like) base.

The WOOD is light, soft, weak, close-grained, nearly white, sometimes yellowish, with thick, lighter-colored sapwood. It is used chiefly for fuel.

114

WHITE ASH
Fraxinus americana L.

White ash is found in East Texas to the valley of the Trinity River. It grows best in the rich moist soils of upper bottomlands. The bark is gray and furrowed, the branchlets smooth and gray with rust-colored winter buds.

WHITE ASH (Twig and fruit, one-half natural size; leaf, one-third natural size)

The compound opposite LEAVES are generally straight, 8 to 12 inches long, with 5 to 9 (usually 7) sharp pointed leaflets, dark green above and paler and whitish beneath.

The male and female FLOWERS appear on separate trees, the male in dense reddish-purple clusters and the female in more open branches. The FRUIT is a samara, 1 to 1½ inches long, resembling the blade of a canoe paddle in outline, with the smooth, terete body at the handle end. The fruit matures in late summer and is distributed effectively by the winds.

The WOOD of white ash is extremely valuable because of its toughness and elasticity. It is preferred for small tool handles, athletic equipment, and agricultural implements, and is used extensively for furniture and interior finish.

The ashes comprise the only group of trees in eastern America that have opposite, pinnately compound leaves with 5 or more leaflets. This fact provides a ready means of identifying the group. There are at least seven other species of ash in Texas.

115

GREEN ASH
Fraxinus pennsylvanica Marsh.

Green ash is a common tree along streams as far west as the Guadalupe River. It attains a height of 50 feet or more, has spreading branches and a trunk ranging up to 2 feet in diameter. The TWIGS are smooth, round, and ashy gray, marked by pale lenticels and rusty bud-scales.

GREEN ASH (Fruit, two-thirds natural size; leaf, one-third natural size; twig, three-fourths natural size)

The BARK is ½ inch or more thick; brown, tinged with red, and slightly furrowed or ridged. The LEAVES are opposite compound, 10 to 12 inches long, with 5 to 9 pointed leaflets slightly toothed on the margin. They differ from those of white ash in being lustrous green on both sides or slightly paler beneath. The terminal leaflet is frequently askew from the main axis of the rachis.

The small, male and female FLOWERS occur on separate trees.

The FRUIT is flat, winged, 1 to 1½ inches long, ¼ to ⅓ inch wide, the wing portion extending well down past the middle of the terete, many-rayed body. The wing is sometimes square or slightly notched at the outer end.

The WOOD is heavy, hard, rather strong, brittle, and coarse-grained. It is used for the same purposes as white ash but is not as desirable.

116

SWAMP PRIVET (Common Adelia)
Forestiera acuminata (Michx.) Poir.

Swamp privet or forestiera is found along river banks, lakes, and standing water over eastern Texas to the Colorado River. It is usually a large shrub but often becomes a small tree, less than 30 feet high, with a short trunk usually less than 8 inches in diameter. Its youngest branches are slender, somewhat hairy, slightly angular, and vary in color from yellowish-green to brown. They become darker and more rounded the second season.

SWAMP PRIVET (Leaves, one-fifth natural size; fruit, one-half natural size)

The BARK is thin, dark brown to brownish-gray, close, and slightly ridged.

The LEAVES are thin, simple, opposite, 2½ to 4 inches long, 1 to 1½ inches wide, pointed at both ends, yellowish-green on the upper surface, paler on the lower surface, and slightly toothed above the middle.

The FLOWERS appear in April before the leaves. They are of two kinds, borne separately on the same tree, rather small and in clusters.

The FRUIT, a drupe, falls when ripe in May or June. It is about 1 inch long and ¼ inch wide, oblong, and tipped with a point. The ripe fruit is deep purple, and contains a tough, dry pulp and a one-seeded stone.

The WOOD is close-grained, yellowish-brown, weak, and rather soft. It has no economic use.

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FRINGETREE (White Fringetree)
Chionanthus virginicus L.

Children give this tree, with its drooping, fringy, white flowers, such names as “grancy-gray beard” and “old-man’s beard.” Beautiful both in flower and fruit, it is a desirable tree for ornamental planting. It occurs naturally in loamy soil over the eastern part of the state to the valley of the Brazos River and generally grows in the shade of other trees.

FRINGETREE (Flower, three-fourths natural size; leaf and fruit, one-half natural size)

The BARK is similar to that of a young ash, but is rougher and whiter. It has tonic properties, and is used in domestic remedies.

The rather large, ovate LEAVES are 4 to 8 inches long, and ½ to 4 inches wide, dark green on the upper surface, paler underneath, and turning a clear bright yellow in autumn. The leaves are opposite, and leave conspicuous scars when they fall.

The odd white FLOWERS, which appear with the very young leaves, are borne in long, loose drooping panicles. The petals are very narrow and long, giving the effect of fringe.

The FRUIT is a dark blue-purple drupe, sometimes as much as an inch long, with a glaucous bloom, and borne in loose, drooping panicles. It is an excellent deer and bird food.

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NORTHERN CATALPA (Western Catalpa)
Catalpa speciosa Warder

Catalpa, often miscalled “catawba”, is found naturalized in eastern Texas and occurs on various qualities of soil, most frequently on rich, moist bottoms. It is a medium-sized tree, rarely exceeding 50 feet in height and 15 inches in diameter. The trunk is usually short and the head broad with spreading branches.

NORTHERN CATALPA (Leaf, one-third natural size; twig and seed, two-thirds natural size; pod, one-fourth natural size)

The BARK varies from dark gray to brown, and is slightly rough, being divided into narrow, shallow strips or flakes.

The LEAVES are simple, opposite, cordate-based, long-pointed, 6 to 10 inches long, and softly pubescent beneath.

The FLOWERS appear in clusters or panicles in April or May, and are 1 to 2 inches long, trumpet-shaped, the wavy and spreading corolla irregular, two-lobed, and with a narrow notch on the margin; corolla white with purple and yellow markings.

The FRUIT consists of a bean-like capsule 8 to 16 inches long and from ⅜ to ½ inch in diameter. It hangs on the tree over winter and gradually splits into two parts, or valves. The seeds are about 1 inch long and terminate in wings that are rounded and short-fringed at the ends.

The WOOD is rather soft, light, coarse-grained, and durable, in contact with the soil. It is used for fence posts, poles and fuel, and occasionally for railroad ties. It is a mistake to attempt to grow catalpa for fence posts or other uses except on good agricultural soil.

SOUTHERN CATALPA (C. bignonioides Walt.) has a thin, scaly bark, abruptly short-acuminate leaf, fetid when crushed. Margin of lower lobe of flower entire. The valves of the capsule flatten after dehiscence. The terminal tuft on the seed forms a point.

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DESERTWILLOW
Chilopsis linearis (Cav.) Sweet

This interesting tree, so named because of its willow-like leaves, is closely related to the catalpa. Often reaching a height of 25 feet and a diameter of 10 to 12 inches, it is found usually in dry, gravelly, porous soils in the valley of the lower Rio Grande and through West Texas.

The LEAVES are less than ½ inch wide and from 6 to 12 inches long, light green, and pointed. Their arrangement on the twig is either opposite or alternate.

DESERTWILLOW (Leaf, one-third natural size; fruit and flowers, one-half natural size)

The white FLOWERS shade into pale purple and are blotched in their “throats” with pale purple. They occur in an elongated cluster, or raceme, opening successively toward the end of the flower stalk.

The FRUIT “pods” are capsules 7 to 12 inches long, hard or woody, very slender, and contain numerous small seeds.

The soft, weak, close-grained WOOD is brown streaked with yellow. The sapwood turns to heartwood in 2 or 3 years.

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COMMON BUTTONBUSH
Cephalanthus occidentalis L.

Buttonbush of Texas is a small tree or large shrub up to 18 feet high, with a straight, tapering trunk up to 12 inches in diameter. Attaining its largest size in moist rich soil of eastern Texas, it is also found to the valley of the Rio Grande. The branches are generally upright, the spreading branchlets with pithy in the centers, often occurring in whorls of three from one place on the stem.

COMMON BUTTONBUSH (Leaf, one-third natural size; fruit and flowers, two-thirds natural size)

The LEAVES occur in pairs or whorls of 3 (occasionally more) each oval or elliptical, pointed, rounded at the base, from 2 to 7 inches long by 1 to 3 inches wide. They are thin, dark green above, with a large central midrib, and somewhat hairy beneath. They fall in autumn or remain on branchlets over winter.

The FLOWERS form a creamy white or yellow round head about 1 inch in diameter and are borne in clusters. The many small flowers in the head are fragrant and nectar-bearing. The long thread-like projecting styles are conspicuous on the flowering heads.

The FRUIT consists of a mass of nuts in a globular head forming an aggregate fruit ¾ inch in diameter. The red-brown nutlets have 2 to 4 closed, 1-seeded portions. The WOOD is of little value.

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RUSTY BLACKHAW (Viburnum)
Viburnum rufidulum Raf.

Rusty blackhaw is found in woods and thickets over East Texas. It forms a tree, sometimes 35 feet high, with a trunk over a foot in diameter, but is usually much smaller, often flowering as a shrub. The twigs are ashy-gray, becoming dark dull reddish-brown after one to several years. The winter buds are densely covered with rusty brown hairs which persist for some weeks at the base of the leaf-stalks.

The BARK is ¼ to ½ inch thick, becoming roughened into small plate-like, dark brown scales tinged with red.

RUSTY BLACKHAW (Fruit and twig, three-quarters natural size; leaf, two-thirds natural size)

The simple LEAVES are opposite or whorled, elliptic to obovate or oval, pointed or blunt at the apex, wedge-shaped or rounded at the base, and with fine teeth on the margin. They are leathery in texture, lustrous dark green above, pale and dull below, about 3 inches long, and 1 to 1½ inches wide.

The FLOWERS are small and white; each has five petals and five stamens, and appear in the spring in dense clusters at the tips of branches.

The FRUIT ripens in the fall. It is a bright blue, oval drupe, over ½ inch long, covered with a glaucous bloom, and containing a stony seed ¼ inch long and ⅓ inch wide.

The bad smelling WOOD has no economic use.

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Other Texas Trees

ARIZONA CYPRESS
(Cupressus arizonica Greene)

is an evergreen native to the mountains of the south Trans-Pecos Region. It grows from a height of 30 to 70 feet and 18 to 24 inches in diameter. The needles are blue-green. Fruit a cone as large as 1¼ inches in diameter. The wood is heavy and used to some extent for fence posts.

ALLIGATOR JUNIPER
(Juniperus deppeana Steud.)

grows in the mountains of southwestern Texas, normally as a small tree, or even as a sprawling shrub under adverse conditions. Its name derives from the fact that the bark on older trees somewhat resembles alligator hide, being broken up into square plates 1 to 2 inches across. The leaves are about ⅛ inch long, and blue-green in color. The fruit is berry-like, nearly round, reddish-brown, and matures in two seasons. Seeds 3-4.

DROOPING JUNIPER (Weeping Juniper)
(Juniperus flaccida Schlect.)

occurs in this country only on the slopes of the Chisos Mountains in Brewster County, Texas. It has graceful spreading branches with long slender, drooping branchlets. After the leaves fall, the thin bright cinnamon-brown bark separating into thin loose papery scales is characteristic.

ONE-SEED JUNIPER
(Juniperus monosperma [Engelm.] Sarg.)

occurs throughout western Texas, usually as a spreading shrub or small, much branched tree. The bark is ashy gray, ridged and shreddy. The leaves resemble those of the alligator juniper, but are gray-green in color, and fringed with minute teeth. The fruit is smaller, usually copper colored or occasionally blue, usually one-seeded, and matures in one season.

ROCKY MOUNTAIN JUNIPER
(Juniperus scopulorum Sarg.)

occurs in western Texas where it is often the largest of the junipers found there. The bark is reddish-brown or grayish-brown, thin, fibrous, and divided into flat, interlacing ridges. The leaves are similar to those of the alligator juniper, but pale to dark green in color. The fruit is nearly round, blue, and matures in two seasons. Seeds 1 to 3, usually 2.

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TEXAS PALMETTO
(Sabal texana [O. F. Cook] Becc.)

sometimes called palm, but not to be confused with the dwarf palmetto (Sabal minor [Jacq.] Pers.) found in East Texas, reaches to heights of 30 to 50 feet and often 2 feet in diameter. It is a native of the rich bottomlands on the Bernando River in Cameron County, Texas, but has been widely cultivated and is found along the Gulf Coast, where the trunks are sometimes used for wharf piles. On the lower Rio Grande the leaves are used for the thatch of houses.

SOUTHERN BAYBERRY (Sweet Myrtle or Wax Myrtle)
(Myrica cerifera L.)

sweet myrtle is found in East Texas, usually in swamp lands. Its small yellow-green leaves are fragrant with a balsam-like resinous odor. Light green berries, about ⅛ inch in diameter remain on the trees during the winter months and are coated with a thick, pale blue wax. Bay berry candles are made from the wax.

RIO GRANDE COTTONWOOD
(Populus fremontii var. wislizenii S. Watts)

is one of several cottonwoods growing in West Texas. Five other cottonwoods are native to the western part of the state. Wood is used for fuel and rafters of Mexican houses. It is not durable in the ground, but is fast growing on most areas. Populus tremuloides Michx., called quaking aspen or aspen popple, is a small-leafed, white-barked tree of the Trans-Pecos Region.

SPECKLED ALDER (Hazel Alder)
(Alnus rugosa [Du Roi] Spreng.)

occurs in East Texas west to approximately the 97th meridian. It is a thicket-forming shrub with thick foliage and is one of the first plants to leaf out in the spring. Birds feed upon the numerous nutlets produced by the woody, cone-like structure.

SWEET ACACIA (Huisache)
(Acacia farnesiana [L.] Willd.)

found mainly in South Texas, is a small, spiny shrub, with bright yellow flowers. Fruit a turgid, woody pod. The wood is heavy, hard, and a rich, reddish-brown.

GUAJILLO
(Acacia berlandieri Benth.)

pronounced “wa-he-o”, is the famous honey plant of the Lone Star State. From its white flowers bees produce a water-white honey, highly valued for its flavor and purity. Guajillo occurs in South Texas, and resembles the other trees in the acacia group. The wood is used locally for fuel.

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GREAT LEADTREE (Mexican Leadtree)
(Leucaena pulverulenta [Schlecht] Benth.)

sometimes called “tepehuaje” or mimosa, is found on the rich moist soil of river banks and small streams only a few miles from the mouth of the Rio Grande River. It grows 50 to 60 feet high and 18 inches in diameter. The finely divided leaves give the tree the appearance of a huge fern. Seed pods are 10 to 12 inches long. The wood is heavy, hard, very close-grained, rich dark brown with a clear yellow sapwood. It is considered valuable and is sometimes manufactured into lumber. Two other species, (L. greggii S. Wats.) and (L. retusa Benth.), are found in West Texas but are smaller.

TEXAS SOPHORA (Coral Bean)
(Sophora affinis Torr. and Gray)

also called “bear berry”, and pink or beaded locust, is a native to most all of Texas. It occurs as a small sized tree, 18 to 20 feet tall and 8 to 10 inches in diameter. The branches are slightly zigzag, bright green when young turning to orange-brown. The leaves are 6 to 9 inches long, made up of from 13 to 19 leaflets. In the fall, it is loaded with clusters of black bean pods. The pods are peculiar in shape in that they are pinched in at each seed giving it the appearance of a string of beads. In fact, it is often called the “necklace tree” for that reason. The wood is very hard, light red in color, with a thick bright clear yellow sapwood.

TEXAS PORLIERIA (Guayacan)
(Porlieria angustifolia [Engelm.] A. Gray)

or soap bush, an evergreen of southern and western Texas, is usually a shrub, but occasionally reaches 8 inches in diameter and 30 feet in height. It is a source of early spring honey in the Rio Grande Valley. Its wood is heavy, hard, and exceptionally durable. Guayacan, sometimes called guaiacum, is the hardest wood in Texas and the United States. The lignum-vitae of commerce is produced from another species.

BARETTA
(Helietta parvifolia [A. Gray] Benth.)

a native of the Rio Grande Valley and abundant in Starr County where it may form considerable thickets, this small, slender evergreen is seldom more than 5 or 6 feet tall. On limestone ridges of the Sierra Madre of Nuevo Leon it reaches 20 to 25 feet high. Its leaves are trifoliate, 1½ to 2 inches long, and conspicuously marked with black glandular dots. The branches are brownish-red, but with bright yellow, new growth. The species is not native to any other section of the United States.

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TREE OF HEAVEN
(Ailanthus altissima [Mill.] Swingle)

is native to the Orient but has been introduced to this country where it has grown wild and occurs generally throughout Texas. The long, pinnately compound leaves, 24 to 48 inches long, with 11 to 41 leaflets, are glandular toothed at the base. The flowers and bruised leaves have a disagreeable odor. The tree is fast growing and spreads by suckers as well as by seed.

CHINABERRY
(Melia azedarach L.)

although a native of Asia, is so widely grown in Texas as an ornamental that it can be seen almost anywhere. It is a member of the mahogany family. The bark is furrowed, with the ridges flat-topped. The alternate leaves are twice-compound and 10 to 32 inches long. The leaflets are alternate, ovate to elliptic, sharply toothed or lobed, ¾ to 2 inches long, light green and usually smooth. The flowers are showy, lilac-colored, fragrant, nearly an inch across, and arranged in loose clusters which appear in April. The fruit is nearly round, ½ to ¾ inch in diameter, fleshy, and yellow when mature. The wood is moderately heavy and moderately hard, light reddish-brown in color, with a rather narrow, yellowish sapwood. Formerly it was much used for cabinet-work.

AMERICAN SMOKETREE (Chittamwood)
(Cotinus obovatus Raf.)

a member of the sumac family, it grows along the Medina and Guadalupe Rivers and in Kendall County, Texas. Occasionally it reaches a height of 30 feet and 12 inches in diameter, but usually grows as a shrub or small tree, its trunk dividing into several stems 10 feet or so above the ground. The wood is bright, clear, rich orange color, and yields the same color dye. Sometimes it is used for fence posts. C. coggygria, the smoketree of gardens, is cultivated in the United States.

TEXAS PISTACHE
(Pistacia texana Swingle)

a less common member of the sumac family, is found native on limestone cliffs and the rocky bottoms of canyons along the lower Pecos River in Valverde County, Texas. It reaches a height of 15 to 20 feet and produces a fruit resembling the pistachio nut of commerce, except that it is smaller in size.

EASTERN WAHOO
(Euonymus atropurpureus Jacq.)

also called arrow-wood and burning bush in some localities is a small tree rarely over 20 feet high and 4 to 6 inches in diameter. The bark is thin and covered with thin, tiny scales. The wood is heavy, hard, white, tinged with orange. The leaves are opposite, thin, and finely serrate. In the fall and winter the tree is characterized by bright red berries in lighter red, 4-lobed capsules. It is a native of East Texas.

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FLORIDA MAPLE (Southern Sugar Maple)
(Acer barbatum Michx.)

grows in East Texas and resembles the sugar maple (A. saccharum Marsh.) with which it blends in Northeast Texas, except that the tips of the leaves of A. barbatum Michx. are more rounded and the young leaves are hairy on the underside when they first unfold.

BIGTOOTH MAPLE
(Acer grandidentatum Nutt.)

a maple native to the mountains and canyons of the Trans-Pecos Region of Texas, grows to 30 and 40 feet high and occasionally 8 to 10 inches in diameter. Its bright red branchlets are nearly encircled by the narrow leaf-scars. Leaf lobes few toothed or nearly entire. When accessible, the wood is valuable for fuel and building material.

UVALDE BIGTOOTH MAPLE (Sugar or Mountain Maple)
(Acer grandidentatum var. sinuosum [Rend.] Little)

resembles the above two maples but is confined to the Balcones Escarpment in western Texas along creek bottoms in parts of Kendall, Bandera, and Uvalde Counties. It is a rare tree, seldom more than 20 feet high. Branchlets pale red-brown and marked by pale lenticels during their first season, ultimately turning dull gray-brown.

FLORIDA BASSWOOD
(Tilia floridana Small)

grows from East Texas to the Edwards Plateau. The leaves are coarsely serrate with sharp-pointed tips, dark green and glaucous above, and pale or covered with a silvery-white bloom and often axillary hairs below. The tree may reach 40 to 50 feet high and 12 to 15 inches in diameter.

CAROLINA BASSWOOD
(Tilia caroliniana Mill.)

located in East Texas to the Edwards Plateau, Kendall County. Underside of the ovate leaves covered with soft, short, brownish-white hairs; smooth on upper surface and coarse-veined. Leaves usually obliquely truncate at the base.

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TAMARISK
(Tamarix species)

all of the many species of Tamarix are native to the Mediterranean Region or to East Asia and India. However, three of them (T. araiculata Vahl, T. gallica L., and T. pentandra Pall.), are widely planted in the South. All are shrubby in nature, or they may attain the stature of small trees. When of tree size, the trunk normally is short, with main branches quite close to the ground. This gives rise to a wide-spreading bushy crown. The leaves are sparse, delicate, evergreen, alternate, simple, small, scale-like, pale green to dull or bluish-green, ovate or rhombic, sharp pointed, sometimes with thin, dry margins, and without petioles. The foliage presents a leathery appearance. The wood is hard, heavy, white to light straw colored, shows a prominent mottled wavy pattern when quarter-sawn, and takes a high polish.

BUCKTHORN BUMELIA (Buckthorn)
(Bumelia lycioides [L.] Pers.)

also called ironwood, is found along the Southeast Coastal Region of Texas. In contrast to B. lanuginosa, the leaves are smooth instead of hairy on the underside. They are also thin. Sometimes grows 25 to 30 feet in height with a short trunk rarely more than 6 inches in diameter. It has stout, flexible branches, usually unarmed.

TEXAS BUMELIA
(Bumelia lanuginosa var. rigida A. Gray)

occurs in Texas from the upper Brazos River to the Rio Grande and upper Guadalupe River. It has thick, leathery-like leaves smooth on the underside. The lateral branches are spiny and occasionally end in stout pines; branchlets slender, often zigzag, and lustrous. The fresh-cut wood of the bumelias in Texas usually produces considerable quantities of clear viscid gum. Mexicans have given some species of this small tree the name “chickle” for that reason.

TEXAS PERSIMMON (Black Persimmon)
(Diospyros texana Scheele)

also called Mexican persimmon, is native to southern and southwestern Texas, from the Colorado River. It is characterized by 1 to 2 inch leaves and small edible black fruits, about ¾ inch in diameter. They will stain the skin black. Mexicans make a hair dye from the ripe fruit, which has given the plant the local name of “capote”. The wood is heavy with a black heartwood often streaked with yellow, and with a bright yellow sapwood. The wood is used in turnery and for the handles of tools.

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TEXAS ASH
(Fraxinus texensis [A. Gray] Sarg.)

a small tree, rarely more than 50 feet high, of the dry limestone bluffs and ridges of the Dallas area to the valley of the Colorado River and the Edwards Plateau. Leaves 5 to 8 inches long with usually five, long-stalked leaflets. Fruit in short, compact clusters.

BERLANDIER ASH (Mexican Ash)
(Fraxinus berlandieriana A. DC.)

grows along the banks of streams and canyons in the San Antonio and Neuces River watersheds and over the Edwards Plateau. It is rarely more than 30 feet tall. The three to five leaflets are smooth. The wood is light brown and soft.

ANACAHUITA (Texas Wild-Olive)
(Cordia boisseri A. DC.)

occurs along the lower Rio Grande Valley, is said to be almost extinct. It is a small tree, sometimes 20 feet tall and 6 to 8 inches in diameter, noted for its large velvety leaves (4 to 5 inches long and 3 to 4 inches wide), clusters of yellow and white flowers and delicate ivory-white coated fruit. The bark is thin, gray, tinged with red.

ANAQUA
(Ehretia anacua [Mier and Berland.] Johnst.)

also called knackaway, anama, and yara, occurs in West Texas from the upper San Marcos River to the Rio Grande River. It is a tree of the tropics and of about 40 species in its family, is the only one found in the United States, and here only in Texas. It is valued as a shade tree in some communities of South Texas and is noted for its growth and beauty. Occasionally it grows to a height of 40 to 50 feet with a trunk 3 feet in diameter, attaining its largest size on the Guadalupe and Nueces Rivers. Anaqua has slender branchlets, without terminal buds, and leathery, very rough leaves which are almost evergreen. It blooms with white flowers in March and April and has large groups of edible red berries in June and July. The wood is heavy, close-grained, light brown and of little value.

TEXAS MADRONE
(Arbutus texana Buckl.)

also called Texas Madroño is a small poorly shaped tree found on dry limestone hills, and in the valley of the Rio Blanco, and among the Eagle Mountains. The trunk is seldom over one foot in diameter and is usually divided into several branches near the ground. The leaves are oval to oblong and persistent until the new leaves are formed. The bark of young stems and branches is smooth, thin, and yellowish-green in color tinged with red. At the base of old trunks the bark, sometimes ¼ inch thick, is dark reddish-brown in color.

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AUSTRIAN PINE
(Pinus nigra Arnold)

is similar in appearance to red pine (P. resinosa Ait.) but needles are more rigid. Bark is black to dark brown and the cones are 1½ to 2 inches long. The tree is a native of central and southern Europe and Asia Minor. It has been planted extensively in the U. S. as an ornamental but is apparently not yet naturalized. It is planted in Texas in windbreak plantings.

RUSSIAN-OLIVE
(Elaeagnus angustifolia L.)

is a small tree, not more than 25 feet tall, usually with thorny branches. Leaves are simple, alternate, narrow and 2 to 3 inches long, bright green on the upper surface and silvery underneath. It is a native of Europe and Asia and is used as an ornamental and in windbreak plantings in the United States.

BUFFALOBERRY (Silver Buffaloberry)
(Shepherdia argentea [Pursh] Nutt.)

is a small silver gray-green tree with edible scarlet colored fruit which is useful for making jelly, which may reach 18 to 23 feet in height. It generally has narrow oblong leaves ¾ to 2 inches long and twigs are often thorny. Its native range is from the northern Great Plains to Kansas. Useful for windbreak plantings and erosion control.

SIBERIAN ELM (Chinese Elm)
(Ulmus pumila L.)

is more commonly known in the Plains area as Chinese elm. It is drought-resistant and tolerant of a variety of sites but cannot stand too much water. A small tree with slender drooping branches. Clusters of short pedicelled winged fruit appear in April or May. The leaves are simple, alternate, oval to elliptical, 1 to 2 inches long and leaf edges are doubly serrate. Widely used for shade and windbreak plantings.

WINTERBERRY EUONYMUS
(Euonymus bungeanus Maxim.)

was introduced from China and has adapted well to the southern Great Plains area centered around the Texas Panhandle. The small tree is very hardy and drought-resistant. Its very light green leaves are 2 to 4 inches long, pointed and borne on slender petioles. The heavy leaves cause the petioles to bend giving the foliage a limp or drooping appearance. Young stems and branches are green, older ones are gray. The fruit is a four-lobed capsule which, before ripening in the fall, has a pinkish cast. The ripened seeds are bright red.

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Tree Identification Guide

The following guide has been included in the Eighth edition to assist school children and interested adults in the identification of Texas trees.

The guide is non-technical and should be treated as such. More detailed keys are available in most public libraries.

In the guide, trees are grouped according to their outstanding characteristics which include leaves, leaf arrangement, flowers, fruit and site.

THE SOFTWOODS

| Needles | Cones
Shortleaf[1] (page 21) | 2 to 3 in a bundle (usually 2); 3″-5″ long | 1½″-2½″ long
Loblolly (page 20) | 3 in a bundle; 6″-9″ long | 3″-5″ long
Longleaf (page 22) | 3 in a bundle; 10″-15″ long | 6″-10″ long
Slash (page 23) | 2 to 3 in a bundle (usually 2); 8″-12″ long | 4″-6″ long

Note: Not included above but commonly found in the longleaf pine range is a cross between loblolly and longleaf pine. This hybrid tree has characteristics of both parents.

[1]Only native pine in Texas that sprouts. Pitch pockets are usually present in bark of older trees.

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THE HARDWOODS

TREES WITH SIMPLE LEAVES

Leaf Margins—Smooth
(Leaves opposite on twig)

Fruits: Page
Drupe (or berry)
Dogwood 107
Fringetree 117
Pod
Catalpa 118
Desertwillow 119
Multiple Fruit
Buttonbush 120

132

Leaf Margins—Smooth
(Leaves alternate on twig)

Fruits: Page
Pod
Corkwood 35
Pawpaw 72
Redbud 88
Acorn
White oaks 48-50, 52-59
Drupe (or berry)
Hackberry 66
Redbay 73
Sassafras 74
Blackgum 105
Farkleberry 108
Gum Elastic 109
Southern Buckthorn 109, 127
Persimmon 110, 127
Privet Swamp 116
Multiple Fruit
Bios-d’arc 69
Magnolia 70
Sweetbay 71
Witch-hazel 77
Sycamore 77
Winged
Silverbell 112

133

Leaf Margins—Toothed
(Leaves opposite on twig)

Fruits: Page
Winged
Silver Maple 98
Red Maple 99
Southern Sugar Maple 126
Sugar Maple 126
Big Tooth Maple 126
Mountain Maple 126
Pod
Desertwillow 119
Wahoo 125
Drupe (or berry)
Blackhaw 121

134

Leaf Margins—Toothed
(Leaves alternate on twig)

Fruits: Page
Drupe (or berry)
Hawthorn 78
Mayhaw 79
Mexican Plum 80
Black Sloe 81
Black Cherry 82
Laurelcherry 83
Holly 96
Yaupon 97
Basswood 103, 126
Tupelo Gum 106
Sweetleaf 111
Sweet Myrtle 123
Anaqua 128
Winged
The Elms 61-64
Multiple Fruit
Cottonwood 36, 123
Black Willow 37
Red Mulberry 68
Sweetgum 76
Alder (cone-like) 123
Nut
Blue Beech (nut-like) 38
Ironwood (cone-like) 39
River Birch (cone-like) 40
American Beech 41
Chinkapin 42
Planer Tree 65
Acorns
Red Oaks 43-47
White Oaks 51, 60

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TREES WITH COMPOUND LEAVES

Leaf Margins—Smooth
(Leaves opposite on twig)

Fruits: Page
Winged
Baretta 124

136

Leaf Margins—Smooth
(Leaves alternate on twig)

Fruits: Page
Pod
Mesquite 87
Black Locust 91
Coral Bean 124
Guajillo 123
Multiple Fruit
Flameleaf Sumac (large headed) 94
Guayacan (capsule) 124
Drupe (or berry)
Poison-Sumac 95
Wild China-tree 102
Tree of Heaven 125
Chinaberry 125
Smoke Tree 125
Pistache 125

137

Leaf Margins—Toothed
(Leaves opposite on twig)

Fruits: Page
Winged
Boxelder 100
Water Ash 113
White Ash 114
Green Ash 115
Mexican Ash 128

138

Leaf Margins—Toothed
(Leaves alternate on twig)

Fruits: Page
Nut
The Walnuts 28
The Hickories 29-34
Ohio Buckeye 101
Drupe (or berry)
Devils-Walkingstick (capsule-like) 92
Pod
Waterlocust 90
Winged
Hoptree 93

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TREES WITH DOUBLY-COMPOUND LEAVES

Leaf Margins—Smooth
(Leaves alternate on twig)

Fruits: Page
Pod
Texas Ebony 84
Catclaw Acacia 85
Leadtree (Mimosa) 86, 124
Honeylocust 89
Huisache (Sweet Acacia) 123

140

Leaf Margins—Toothed
(Leaves alternate on twig)

Fruits: Page
Drupe (or berry)
Devils-Walkingstick 92
Hercules-Club 104

141

TREES THAT PREFER WET SITES

Page

Baldcypress 25

Water Hickory 31

Corkwood 35

Cottonwood 36

Black Willow 37

Blue Beech (Hornbeam) 38

Ironwood (Hophornbeam) 39

Red Birch (River Birch) 40

Water Oak 48

Willow Oak 49

Bur Oak 57

Overcup Oak 58

Swamp Chestnut Oak 59

Sweetbay 71

Sweetgum 76

The Hawthorns 78, 79

Waterlocust 90

Poison-Sumac 95

Yaupon 97

Blackgum (Black Tupelo) 105

Tupelo-Gum (Water Tupelo) 106

Water Ash 113

Swamp Privet 116

Alder 123

HARDWOOD TREES WITH EVERGREEN LEAVES

Page

Live Oak 52

Southern Magnolia 70

Redbay 73

American Holly 96

Yaupon 97

Tree Sparkleberry (Tree Huckleberry) 108

Baretta 124

TREES WHOSE LEAVES TURN RED IN AUTUMN

Page

Red Oak 46

Sweetgum 76

The Hawthorns 78

The Sumacs 94

Red Maple 99

Blackgum 105

Flowering Dogwood 107

Sugar Maple (yellow as well) 126

142

TREES WHOSE LEAVES TURN YELLOW IN AUTUMN

Page

The Hickories 29-34

The Cottonwoods 36, 123

Black Willow 37

Hophornbeam (Blue Beech) 38

River Birch 40

Most of the Oaks (except Red Oak) 43-60

Bios-d’arc (Osage Orange) 69

Southern Magnolia 70

Pawpaw 72

Mesquite 87

Redbud 88

Hercules-Club 92

Red Maple 99

Ohio Buckeye 101

Devils-Walkingstick 104

The Ashes 113-115, 128

Fringetree 117

Catalpa 118

Sugar Maple (red as well) 126

TREES WITH SEEDS WINGED OR WITH PARACHUTE-LIKE ATTACHMENTS

Page

The Cottonwoods 36, 123

Black Willow 37

American Hornbeam (Blue Beech) 38

Ironwood 39

River Birch 40

The Elms 61-64

Planer Tree 65

Sweetgum 76

American Sycamore 77

Hoptree 93

The Maples 98-99, 126

The Basswoods 103, 126

Silverbell 112

The Ashes 113-115, 128

Catalpa 118

Desertwillow 119

Buttonbush 120

Alder 123

Tree of Heaven 125

143

TREES WITH SOFT BERRY-LIKE FRUIT

Page

The Hackberries 66, 67

The Mulberries 68

Osage Orange (Bois-d’arc) 69

Redbay 73

Sassafras 74

The Hawthorns 78-79

The Cherries and Plums 80-83

American Holly 96

Yaupon 97

Black and Tupelo Gum 105, 106

Dogwood 107

Tree Sparkleberry (Tree Huckleberry) 108

Gum Bumelia (Gum Elastic) 109

Persimmon 110, 127

Fringetree 117

Rusty Blackhaw 121

TREES WHICH PRODUCE NUTS

Page

The Walnuts 28

The Hickories 29-34

American Beech 41

Chinkapin 42

The Oaks 43-60

Ohio Buckeye 101

TREES WITH PODS AS FRUIT

Page

Corkwood 35

Texas Ebony 84

Catclaw Acacia 85

Leadtree (Mimosa) 86, 124

Mesquite 87

Redbud 88

Honeylocust 89

Waterlocust 90

Black Locust 91

Catalpa 118

Desertwillow 119

Huisache (Sweet Acacia) 123

Guajillo 123

Coral Bean 124

Mexican Leadtree 124

144

TREES WITH BRIGHT RED FRUIT

Page

Red Mulberry 68

The Magnolias 70, 71

The Hawthorns 78, 79

Shining Sumac 94

American Holly 96

TREES WITH SPINES OR THORNS

Page

Osage-Orange (Bois-d’arc) 69

The Hawthorns 78, 79

Texas Ebony 84

Catclaw Acacia 85

Leadtree (Mimosa) 86, 124

Mesquite 87

Honeylocust 89

Waterlocust 90

Black Locust 91

Prickly Ash 92

Devils-Walkingstick 104

Huisache (Sweet Acacia) 123

TREES WITH CORKY PROJECTIONS ON TWIGS

Page

Bur Oak (Mossy-Cup Oak) 57

Winged Elm 62

Cedar Elm 63

Sweetgum 76

TREES WHOSE TWIGS HAVE A CHAMBERED PITH

Page

Walnut 28

Hackberry 66

Sugarberry 67

TREES KNOWN BY THE COLOR AND SHAPE OF THE TWIG PITH

Page

Star-shaped in Cross-section

The Cottonwoods 36, 123

The Oaks 43-60

Triangular in Cross-section

Alder 123

Brown in Color

The Walnuts 28

The Sumacs 94

145

TREES WITH SINGLE LARGE FLOWERS

Page

Magnolia 70

Pawpaw 72

TREES WITH FLOWERS IN CLUSTERS

Page

Redbay 73

The Hawthorns 78-79

The Plums and Cherries 80-83

Redbud 88

Black Locust 91

Devils-Walkingstick 92

Hercules-Club 92

Hoptree 93

The Sumacs 94

Poison-Sumac 95

Yaupon 97

Ohio Buckeye 101

Western Soapberry 102

The Basswoods 103, 126

Flowering Dogwood 107

Silverbell 112

Fringetree 117

Catalpa 118

Rusty Blackhaw 121

TREES WHOSE BLOSSOMS APPEAR BEFORE OR WITH THE LEAVES

Page

The Walnuts 28

The Hickories 29-34

The Cottonwoods 36, 123

Black Willow 37

Ironwood 38

Eastern Hophornbeam 39

River Birch 40

The Oaks 43-60

The Elms 61-64

Sassafras 74

Redbud 88

The Maples 98, 99, 126

The Ashes 113-115, 128

Alder 123

146

TREES WHOSE BLOSSOMS APPEAR AFTER THE LEAVES

Page

Chinkapin 42

Magnolia 70

Honeylocust 89

Black Locust 91

The Sumacs 94

Ohio Buckeye 101

Basswood 103, 126

Flowering Dogwood 107

Persimmon 110, 127

Silverbell 112

Fringetree 117

Catalpa 118

Mountain Maple 126

147

Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

Achene—A small, hard, dry, 1-celled, indehiscent fruit.

Acrid—Sharp or biting to the taste.

Acuminate—Tapering at end to a gradual point.

Acute—Terminating in a sharp angle.

Aggregate fruit—Cluster of ripened ovaries produced from a single flower containing numerous pistils inserted on a common receptacle. Example: fruit of magnolia or blackberry.

Alternate—Not opposite on the axis, but borne at regular intervals at different levels.

Anther—Pollen-bearing structure of a stamen.

Apex—The tip or end of a bud or leaf, i.e., the part opposite the base.

Apical—Pertaining to the tip, end, or apex.

Appressed—Lying tight or close against.

Aromatic—Fragrant; with a pleasing odor.

Astringent—Contracting; drawing together.

Axil—The upper angle formed by a leaf or branch with a stem.

Axis—The central line of an organ; a stem.

B

Bark—The outer covering of a trunk or branch.

Basal—Pertaining to or situated at the base.

Berry—A fruit which is fleshy or pulpy throughout, and with several seeds imbedded in the pulpy mass.

Bisexual—Having both stamens and pistils, i.e., male and female.

Bloom—A powdery or somewhat waxy substance easily rubbed off. Also, to produce or yield blossoms.

Bole—The main axis or trunk of a tree.

Bract—Modified leaf subtending a flower or belonging to an inflorescence.

Bud-scales—Modified leaves covering a bud.

Bundle-scars—Scars on the surface of a leaf-scar. Severed ends of the fibro-vascular bundles which connected the twigs with the leaves.

C

Calyx—The outer perianth or floral envelope, usually green in color; sepals, collectively.

Cambium—A thin-walled formative tissue between the bark and wood. The active growing portion of the tree.

Carpel—A simple pistil or one member of a compound pistil.

Capsule—A dry fruit composed of more than one carpel and splitting open at maturity.

Catkin—An ament or spike of unisexual flowers.

Chambered—Said of the pith when interrupted by hollow spaces at rather regular intervals.

Ciliate—Fringed with hairs on the margin.

148

Collateral—Accessory buds at the sides of auxiliary buds.

Compound—Composed of two or more similar parts united in a whole.

Conical—Cone-shaped.

Conifers—A group of trees which usually produce their fruit in the form of a cone or modified cone.

Coniferous—Cone-bearing.

Corolla—The petals of a flower collectively.

Cordate—Heart-shaped.

Crenate—Rounded teeth.

Crown—The upper mass of branches; also known as head.

Cuneate—Wedge-shaped.

D

Deciduous—Falling off, usually at the close of the season.

Defoliation—Removal of foliage.

Dehiscent—Splitting open at maturity.

Deliquescent—Said of the form of a tree with a broad spreading habit. The branches sub-divide until they apparently disappear.

Deltoid—Triangular like Greek symbol for delta.

Dentate—Toothed, usually with the teeth directed outwards.

Diffuse-porous—Equal-pored. Said of wood when pores in a growth ring are equal in size.

Dioecious—Unisexual, with the staminate and pistillate flowers on separate plants.

Disseminated—Scattered, thrown, broadcast.

Divergent—Pointing away; extending out. Said of buds which point away from the twigs.

Downy—Covered with fine hairs.

Drupe—A fleshy fruit with a pit or stone like a cherry.

E

Elliptical—Shaped like an ellipse with sloping ends.

Elongated—Long, drawn out.

Entire-margined—Margin smooth, not cut or toothed.

Excurrent—Said of a tree with a continuous trunk and erect habit of growth.

Exfoliation—Splitting or cleaving off of outer layers of bark.

Exotic—Of foreign origin.

Exudation—Oozing out of sap, resin, or other juice.

F

Fascicle—A close bundle or cluster.

Fetid—Ill smelling.

Fissures—Grooves, furrows, or channels as in the bark.

Fluted—Grooved, corrugated, channeled.

Follicle—A dry fruit produced from a simple pistil and dehiscing along one line of suture.

Fruit—The ripened ovary of a flower.

G

Glabrate—Somewhat glabrous or becoming glabrate.

149

Glabrous—Smooth, without hairs.

Glandular—Bearing glands or gland-like.

Glaucous—Covered with a bluish or whitish waxy coating; a bloom.

Globose—Ball-like or nearly so.

Globular—Ball-like.

H

Habitat—Site or place of growth.

Hardwood—A collective term for broad-leaved trees, the wood of which may or may not be dense.

Heartwood—The physiologically dead, central, usually darker colored portion of the tree trunk.

Hybrid—A crossbreed of two species.

I

Increment—Growth; increase.

Incised—Divided into lobes separated by narrow or acute sinuses which extend halfway or more to midrib.

Indehiscent—Applied to fruits that do not split open to discharge the seeds, remaining closed at maturity.

Indigenous—Applied to plants that are native to a certain locality. Not introduced.

Intolerant—Not shade enduring. Requiring sunlight.

Involucre—A cluster of bracts subtending a flower.

L

Lamina—The blade or flattened portion of a leaf.

Lanceolate—Shaped like a lance; several times longer than wide, and growing to a point.

Lateral—Situated on the side, as the buds along the side of the twig.

Leaflets—One of the small blades or divisions of a compound leaf.

Leaf-scar—The scar left after a leaf falls.

Lenticel—A corky growth on young or sometimes older bark, which admits air to the interior of the twig or branch.

Linear—Line-like, long and narrow, with parallel edges.

Lobed—Said of leaves that have the margins more or less cut or divided.

M

Medullary—Pertaining to the pith or medulla.

Medullary Ray—Radial lines of tissues crossing the growth of rings at right angles and extending into the bark.

Midrib—The central or main rib or vein of a leaf.

Monoecious—Bearing male and female flower parts in separate flowers on the same plant.

Mucilaginous—Slimy or gummy when touched or chewed.

Multiple fruit—A cluster of fruits of separate flowers crowded together and forming what appears to be a single fruit. Examples: mulberry, strawberry, osage-orange fruits.

N

Naked—Said of buds without scales, and seeds without a covering.

Naval Stores—Refers to tar, turpentine, resin, etc.

Node—A place on a twig where one or more leaves originate.

150

Nut—A dry, 1-seeded, fruit with a hard indehiscent covering and encased partly or wholly in an involucre or husk.

Nutlet—A small nut.

O

Oblique—Slanting, uneven. Uneven sided.

Oblong—About twice as long as wide, the sides nearly parallel.

Obovate—Reversed egg-shaped.

Obtuse—Blunt

Opposite—Said of leaves and buds, directly across from each other.

Orbicular—Circular.

Oval—Rounded.

Ovate—Egg-shaped.

Ovoid—Egg-shaped or nearly so.

P

Palmate—Radiately lobed or divided from the petiole; hand-like as leaflets of buckeye.

Panicle—A loose, irregularly compound flower cluster with flowers on pedicels.

Pedicel—The support or stem of a single flower or fruit in a cluster.

Peduncle—A primary flower stalk supporting a cluster of flowers or a solitary flower, later the fruit. A fruit-stem.

Perennial—Lasting for more than one year.

Persistent—Remaining after blooming, fruiting, or maturing.

Petiole—The stalk of a leaf.

Pinnate—Feather-like with leaflets on both sides of rachis or leaf stalk.

Pistil—Seed bearing organ of flower. May consist of stigma, style, and ovary.

Pith—The soft central part of a twig or stem.

Pod—Any dry, one chambered, dehiscent fruit.

Pollen—The dust-like substance from the anthers of a flower.

Pollination—The process of bringing the pollen of the male flower in contact with the stigma of the female flower.

Pome—A fleshy fruit with a core, such as the apple or pear.

Porous—With open tubes (through wood).

Prickle—A sharp-pointed, needle-like outgrowth.

Pubescent—With short, soft, down-like hairs.

Pungent—Acrid or sharp to smell.

Pyramidal—Shaped like a pyramid with the broadest part near the base.

R

Rachis—The stalk supporting the leaflets of a compound leaf.

Resin-ducts—A passage for the conduction of resin found in the leaves and wood.

Ring-porous—Said of wood which has pores of unequal size, the larger ones being found in the spring wood and the smaller ones in the summer wood.

151

S

Samara—An indehiscent winged fruit such as that of maple.

Sapwood—The recently formed, usually light colored wood, lying outside of the heartwood.

Scabrous—Rough, with stiff, bristly hairs.

Scales—The small, modified leaves which protect the growing-point of a bud or the part of a cone which bears the seeds. The small flakes into which the other bark of a tree divides.

Scurfy—Covered with small bran-like scales.

Serrate—Having sharp teeth on margin.

Sessile—Seated; without a stalk.

Sheath—A tubular envelope or covering such as surround the base of pine-needles.

Silky—Covered with long, soft, straight, fine hairs.

Simple—Consisting of one part, not compound.

Sinus—The cleft or opening between two lobes.

Sinuate—Wavy.

Softwood—A general term given conifers, the wood of which may or may not be of low density.

Stamen—Male organ of flower. Consists of a pollen-bearing anther on a filament.

Stipule—A leaf-appendage at the base of the leaf-stalk.

Stipule-scar—The scar left by the fall of the stipule.

Stolon—A runner or basal branch that may root.

Striate—Marked with fine elongated ridges or lines.

Striations—Long narrow lines or ridges.

Strobile—A fruit marked by overlapping scales as in the pine, birches, etc.

Sucker—A shoot arising from an underground bud.

Superposed—Said of buds when they are arranged one above the other.

Symmetrical—Regular as to the number of parts. Having the same number of parts in each circle.

T

Terminal—Located at the outer end.

Thorn—A stiff, woody, sharp-pointed projection as found on locust; a spine.

Tolerant—Applied to trees which endure certain factors, particularly shade.

Tomentose—Densely pubescent; hairy. Covered with matted-hairs.

Tomentum—A dense layer of woolly hairs.

Truncate—Ending abruptly, as if cut off at the end.

Tufted—Growing in clusters.

U

Unisexual—Consisting of one sex only, either staminate or pistillate.

V

Valvate—Said of buds in which the scales merely meet without overlapping. Fruit opening by valves.

Veins—Threads of fibro-vascular tissue in leaves or other organs.

W

Whorl—A group of three or more similar organs, as leaves or buds, arranged about the same place of attachment.

Whorled—Borne in a whorl.

152

Index

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

Acacia berlandieri 123

Acacia, catclaw 85

Acacia farnesiana, sweet 123

Acacia greggii 85

Acer barbatum 126

Acer grandidentatum 126

Acer grandidentatum var. sinuosum 126

Acer negundo 100

Acer rubrum 99

Acer saccharinum 98

Adelia, common 116

Aesculus glabra 101

Aesculus pavia 101

Ailanthus altissima 125

Alder, hazel, speckled 123

Alnus rugosa 123

Anacahuita 128

Anama 128

Anaqua 128

Apple, hedge 69

Aralia spinosa 104

Arbutus texana 129

Arizona cypress 122

Arrow-wood 125

Ash, Berlandier 128

Ash, Carolina 113

Ash, green 115

Ash, Mexican 128

Ash, poison 95

Ash, prickly 92, 104

Ash, Texas 128

Ash, wafer 93

Ash, water 113

Ash, white 114

Ash juniper 26

Asimina triloba 72

B

Baldcypress 25

Baretta 124

Basswood, American 103

Basswood, Carolina 126

Basswood, Florida 126

Bayberry, Southern 123

Beaded locust (Sophora) 124

Bear berry 124

Beech, American 41

Beech, blue 38

Beech, water 38

Betula, nigra 40

Birch, river (red) 40

Bitternut hickory 30

Blackhead, ebony 84

Blackgum 105

Blackhaw, rusty 121

Bois-d’arc 69

Boxelder 100

Buckeye, Ohio 101

Buckeye, red 101

Buckthorn 127

Buckthorn, wooly 109

Buffaloberry 129

Bumelia, buckthorn, gum, elastic 109

Bumelia lanuginosa 109

Bumelia lanuginosa var. rigida 109

Bumelia, lycioides 109

Bumelia, Texas 127

Burning bush (Euonymous) 125

Buttonbush, common 120

Buttonwood (sycamore) 77

C

Capote 127

Carpinus caroliniana 38

Carya aquatica 31

Carya cordiformis 30

Carya illinoensis 29

Carya ovata 32

Carya texana 34

Carya tomentosa 33

Castanea pumila 42

Catalpa, northern 118

Catalpa, speciosa 118

Catalpa, western 118

Cedar, eastern red 27

Cedar, mountain 26

Celtis laevigata 67

Celtis, occidentalis 66

Cephalanthus occidentalis 120

Cercis canadensis 88

Cherry, black 82

Cherry, southwestern black 82

Chicle 127

Chilopsis linearis 119

Chinaberry 125

China-tree, wild 102

Chinkapin, Allegheny 42

Chionanthus virginicus 117

Chittamwood 125

Coral bean 124

Cordia boisseri 128

Corkwood 35

Cornus florida 107

Cotinus obovatus 126

Cottonwood, eastern 36

Crataegus 78

Crataegus opaca 79

Cupressus arizonica 122

Cypress (baldcypress) 25

D

Desertwillow 119

Devils-walkingstick 104

Diospyros texana 128

Diospyros virginiana 110

Dogwood, flowering 107

E

Ebony, Texas (blackbead) 84

Ehretia anacua 128

Elastic, gum 109

Elaeagnus angustifolia 129

Elm, American 61

Elm, cedar 63

Elm, Chinese 129

Elm, red 64

Elm, Siberian 129

Elm, slippery 64

Elm, water 65

Elm, white 61

Elm, winged 62

Euonymus atropurpureus 125

Euonymus bungeanus 129

F

Fagus grandifolia 41

Farkleberry 108

Fir, Douglas 24

Forestiera acuminata 116

Fraxinus americana 114

Fraxinus berlandieriana 128

Fraxinus caroliniana 113

Fraxinus pennsylvanica 115

Fraxinus texensis 128

Fringetree, white 117

153

G

Gleditsia aquatica 89, 90

Gleditsia texana 89

Gleditsia triacanthos 89

Grancy-gray beard 117

Great leadtree 124

Gregg leadtree 86, 124

Guaiacum 124

Guajillo 123

Guayacan 124

Gum, black 105

Gum, cotton 106

Gum, elastic 109

Gum, red 76

Gum, sour 105

Gum, sweet 76

Gum, tupelo 106

H

Hackberry 66

Hackberry, sugar 67

Halesia diptera 112

Hamamelis virginiana 75

Haw 78

Haw, rusty black 121

Hawthorn 78

Hawthorn, riverflat 79

Hazel, alder 123

Helietta parvifolia 124

Hercules-club 92, 104

Hickory, bigbud 33

Hickory, bitternut 30

Hickory, black 34

Hickory, mockernut 33

Hickory, pignut 30

Hickory, shagbark 32

Hickory, water 31

Hickory, white 33

Holly, American 96

Honeylocust 89

Hophornbeam, eastern 39

Hoptree, common 93

Hornbeam, American 38

Horse-sugar 111

Huckleberry, tree 108

I

Ilex decidua 97

Ilex opaca 96

Ilex vomitoria 97

Indian soap plant 102

Ironwood 38, 39

J

Judas tree 88

Juglans, microcarpa 28

Juglans, nigra 28

Juniper, alligator 122

Juniper, ashe 26

Juniper, drooping 122

Juniper, Mexican mountain cedar 26

Juniper, one seed 122

Juniper, Rocky Mountain 122

Juniper, weeping 122

Juniperus ashei 26

Juniperus deppeana 122

Juniperus flaccida 122

Juniperus monosperma 122

Juniperus scopulorum 122

Juniperus virginiana 27

K

Knackaway 128

L

Laurel, cherry 83

Laurelcherry, Carolina 83

Leadtree, Gregg 86

Leadtree, Mexicana, great 124

Leitneria floridana 35

Leucaena greggii 86, 124

Leucaena pulverulenta 86, 124

Leucaena retusa 86, 124

Linden, American 103

Liquidambar styraciflua 76

Locust, beaded 124

Locust, black 91

Locust, honey 89

Locust, pink 124

Locust, water 90

Locust, yellow 91

M

Maclura pomifera 69

Madrone, Texas 129

Magnolia, evergreen 70

Magnolia, grandiflora 70

Magnolia, Southern 70

Magnolia, sweetbay 71

Magnolia, virginiana 71

Maple, Florida 126

Maple, mountain, or sugar 126

Maple, red 99

Maple, silver 98

Maple, soft 98, 99

Maple, Southern sugar 126

Maple, Uvalde bigtooth 126

Mayhaw 79

Melia azedarach 125

Mesquite, honey 87

Mimosa 86, 124

Morus alba 68

Morus microphylla 68

Morus rubra 68

Mulberry, red 68

Mulberry, Texas 68

Mulberry, white 68

Myrica cerifera 123

Myrtle, sweet 123

Myrtle, wax 123

N

Necklace tree 124

Northern catalpa 118

Nyssa aquatica 106

Nyssa sylvatica 105

O

Oak, basket 59

Oak, black 45

Oak, blackjack 47

Oak, bluejack 50

Oak, bur 57

Oak, chestnut 59

Oak, chinkapin, chestnut 60

Oak, cow 59

Oak, Durand (white) 54

Oak, Emory 51

Oak, Graves 44

Oak, gray 51

Oak, live 52

Oak, Mexican blue 51

Oak, Mohrs 53

Oak, mossy-cup 57

Oak, overcup 58

Oak, pin 48, 49

Oak, post 56

Oak, red 46

Oak, sandjack 50

Oak, shin 53

Oak, Shumard 43

Oak, Spanish 46

Oak, Southern red 46

Oak, spotted 43

Oak, swamp chestnut 59

Oak, swamp post oak 58

Oak, Texas 44

Oak, water 48, 49

Oak, water white 58

Oak, white 55

Oak, willow 49

Old man’s beard, 117

Olive, Russian 129

Olive, Texas wild 128

Orange, mock 83

Osage-orange 69

Ostrya virginiana 39

154

P

Palmetto, Texas (palm) 123

Pawpaw 72

Peach, wild 83

Pecan 29

Persea borbonia 73

Persimmon, black 127

Persimmon, common 110

Persimmon, Texas 127

Pine, Austrian 129

Pine, limber, Rocky Mtn. white 17

Pine, loblolly 20

Pine, longleaf 22

Pine, nut 18

Pine, ponderosa, western yellow 19

Pine, shortleaf, yellow 21

Pine, slash 23

Pine, Sonderegger 22

Pinus echinata 21

Pinus edulis 18

Pinus elliottii 23

Pinus flexilis 17

Pinus nigra 129

Pinus palustris 22

Pinus ponderosa 19

Pinus taeda 20

Pinyon 18

Pistache, Texas 125

Pistacia texana 125

Pithecellobium flexicaule 84

Planer tree 65

Planera aquatica 65

Platanus occidentalis 77

Plum, flatwoods 81

Plum, Mexican 80

Popple, aspen 123

Populus deltoidea 36

Populus fremontii var. wislizenii 123

Populus sargentii 36

Populus tremuloides 123

Porlieria, Texas 124

Possumhaw 97

Prickly ash 92

Privet, swamp 116

Prosopsis juliflora 87

Prunus caroliniana 83

Prunus mexicana 80

Prunus serotina 82

Prunus serotina var. rufula 82

Prunus umbellata 81

Pseudotsuga menziesii 24

Ptelea trifoliata 93

Q

Quercus alba 55

Quercus durandii 54

Quercus emoryi 51

Quercus falcata 46

Quercus gravesii 44

Quercus grisea 51

Quercus incana 50

Quercus lyrata 58

Quercus macrocarpa 57

Quercus marilandica 47

Quercus michauxii 59

Quercus mohriana 53

Quercus muhlenbergii 60

Quercus nigra 48

Quercus oblongifolia 51

Quercus phellos 49

Quercus shumardii 4

Quercus shumardii var. shumardii 43

Quercus shumardii var. texana 44

Quercus stellata 56

Quercus velutina 45

Quercus virginiana 52

R

Redbay 73

Redbud, eastern 88

Redcedar, eastern 27

Redgum 76

Rhus copallina 94

Robinia pseudoacacia 91

Rusty blackhaw 121

S

Sabal minor 123

Sabal texana 123

Salix nigra 37

Sapindus drummondii 102

Sassafras 74

Sassafras albidum 74

Shepherdia argentea 129

Siberian elm 129

Silverbell, two-wing 112

Sloe, black 81

Smoketree, American 125

Snowdrop tree 112

Soapberry, western 102

Soapbush 124

Soap plant, Indian 102

Sophora affinis 124

Sparkleberry tree 108

Sugarberry 67

Sumac, shining, dwarf, flameleaf 94

Sumac, poison 95

Swampbay 71

Sweetbay magnolia 71

Sweetgum 76

Sweetleaf, common 111

Sycamore, American 77

Symplocos tinctoria 111

T

Tamarisk 127

Tamarix araiculata 127

Tamarix gallica 127

Tamarix pentandra 127

Taxodium distichum 25

Tepehuaje 124

Texas sophora 124

Texas wild olive 128

Tilia americana 103

Tilia caroliniana 126

Tilia floridana 126

Tingle-tongue 92

Toothache tree 92

Toxicodendron vernix 95

Tree-huckleberry 108

Tree of heaven 125

Tree Sparkleberry (Farkleberry) 108

Tupelo, black 105

Tupelo, swamp 105

Tupelo, water 106

U

Ulmus alata 62

Ulmus americana 61

Ulmus crassifolia 63

Ulmus pumila 129

Ulmus rubra 64

Una de Gato 85

V

Vaccinium arboreum 108

Viburnum rufidulum 121

W

Wafer-ash 93

Wahoo, eastern 125

Walnut, black 28

Walnut, little 28

Walnut, Texas 28

Waterlocust 90

Wild china-tree 102

Wild olive, Texas 128

Wild peach 83

Willow, black 37

Willow, desert 119

Winterberry 97

Winterberry euonymus 129

Witch-hazel 75

Y

Yara 128

Yaupon 97

Z

Zanthoxylum clava-herculis 92

155

TREE PLANTING REGIONS OF TEXAS

PARTIAL LIST OF TREES RECOMMENDED FOR SHADE AND WINDBREAKS

East Texas

American elm

arborvitae

Arizona cypress

basswood

black locust

black walnut

bur oak

catalpa

Chinese tallow

green ash

hackberry

holly

live oak

loblolly pine

longleaf pine

magnolia

pecan

red oak

shortleaf pine

silver maple

slash pine

sweetgum

sycamore

water oak

white ash

willow oak

Coastal Prairie

American elm

arborvitae

Arizona ash

Arizona cypress

athel

Carolina poplar

Chinese tallow

Gulf Coast cedar

hackberry

holly

Italian cypress

live oak

loblolly pine

pecan

swamp ash

sweetgum

sycamore

156

Central Texas

Arizona cypress

American elm

Texas walnut

cedar elm

Chinese arborvitae

Chinese elm

eastern redcedar

green ash

hackberry

live oak

pecan

sycamore

thornless honeylocust

South Texas

anaqua

Arizona cypress

athel

Australian pine

Carolina poplar

Chinese arborvitae

Chinese tallow

eucalyptus

fan palm

Gulf Coast cedar

gum elastic

hackberry

Italian cypress

Japanese varnish tree

live oak

ornamental date palm

pecan

pistacia

Rio Grande ash

sycamore

West Texas

Arizona ash

Arizona cypress

aspen popple

Austrian pine

Chinese arborvitae

Chinese elm

green ash

hackberry

live oak

mountain cottonwood

pistacia

redcedar

Rocky mountain

juniper

Russian mulberry

Russian olive

silver poplar

Spanish oak

thornless honeylocust

western yellow pine

Panhandle

American elm

apricot

Arizona cypress

Austrian pine

black locust

Carolina poplar

Chinese arborvitae

Chinese maple

Chinese elm

Colorado blue spruce

green ash

hackberry

loblolly pine

pistacia

redcedar

red mulberry

Russian mulberry

Russian olive

sand plum

shortleaf pine

Siberian elm

silver poplar

sycamore

thornless honeylocust

western yellow pine

158

CODE OF BEHAVIOR
WITH
OUTDOOR FIREBRANDS

1. Burn household trash only in a metal or cinder block container on an area cleared to bare soil.

2. Burn fields and brush piles only in the late afternoon when the wind is low and after a 5-foot fire-break has been plowed around the field.

3. Break matches and crush smokes before discarding.

4. Use car ash tray for smokes and used matches when traveling in a vehicle. Don’t pitch them out the window.

5. Clear the area around a warming or camp fire before lighting it.

6. Extinguish all warming and camp fires when you leave. Be sure all fires are Dead Out.

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Table of Contents

Forest Trees of Texas How To Know Them

ACKNOWLEDGMENTS

TREES ... MANKIND’S FRIENDS

- TEXAS TREES
- TEXAS FOREST SERVICE
- TEXAS FORESTRY ASSOCIATION
- ARBOR DAY
- STATE TREE

STUDYING TREES

- TWIGS AND LEAVES

- LEAF SHAPES

Texas Trees

LIMBER PINE (Rocky Mountain White Pine) Pinus flexilis var. flexilis James

PINYON (Nut Pine) Pinus edulis Engelm.

PONDEROSA PINE (Western Yellow Pine) Pinus ponderosa Laws.

LOBLOLLY PINE Pinus taeda L.

SHORTLEAF PINE (Yellow Pine) Pinus echinata Mill.

LONGLEAF PINE Pinus palustris Mill.

SLASH PINE Pinus elliottii var. elliottii

DOUGLAS-FIR Pseudotsuga menziesii var. glauca (Belssn.) Franco

BALDCYPRESS Taxodium distichum (L.) Rich.

ASHE JUNIPER (Mexican Juniper--Mountain Cedar) Juniperus ashei Buchholz

EASTERN REDCEDAR Juniperus virginiana L.

BLACK WALNUT Juglans nigra L.

PECAN Carya illinoensis (Wangenh.) K. Koch

BITTERNUT HICKORY (Pignut) Carya cordiformis (Wangenh.) K. Koch

WATER HICKORY Carya aquatica (Michx. f.) Nutt.

SHAGBARK HICKORY Carya ovata (Mill.) K. Koch

MOCKERNUT HICKORY Carya tomentosa Nutt.

BLACK HICKORY Carya texana Buckl.

CORKWOOD Leitneria floridana Chapm.

EASTERN COTTONWOOD Populus deltoides (Bartr.)

BLACK WILLOW Salix nigra Marsh.

AMERICAN HORNBEAM (Blue Beech) Carpinus caroliniana Walt.

EASTERN HOPHORNBEAM (Ironwood) Ostrya virginiana (Mill.) K. Koch

RIVER BIRCH (Red Birch) Betula nigra L.

AMERICAN BEECH Fagus grandifolia Ehrh.

ALLEGHENY CHINKAPIN Castanea pumila Mill.

SHUMARD OAK (Spotted Oak) Quercus shumardii Buckl.

TEXAS OAK Quercus shumardii var. texana (Buckl.) Ashe

BLACK OAK Quercus velutina Lam.

SOUTHERN RED OAK Quercus falcata Michx.

BLACKJACK OAK Quercus marilandica Muenchh.

WATER OAK Quercus nigra L.

WILLOW OAK (Pin Oak) Quercus phellos L.

BLUEJACK OAK (Sandjack Oak) Quercus incana Bartr.

EMORY OAK Quercus emoryi Torr.

LIVE OAK Quercus virginiana Mill.

MOHRS OAK (Shin Oak) Quercus mohriana Buckl.

DURAND OAK (Durand White Oak) Quercus durandii Buckl.

WHITE OAK Quercus alba L.

POST OAK Quercus stellata Wangenh.

BUR OAK (Mossy-Cup Oak) Quercus macrocarpa Michx.

OVERCUP OAK Quercus lyrata Walt.

SWAMP CHESTNUT OAK Quercus michauxii Nutt.

CHINKAPIN OAK Quercus muhlenbergii Engelm.

AMERICAN ELM (White Elm) Ulmus americana L.

WINGED ELM Ulmus alata Michx.

CEDAR ELM Ulmus crassifolia Nutt.

SLIPPERY ELM (Red Elm) Ulmus rubra Muhl.

PLANER TREE (Water Elm) Planera aquatica (Walt.) Gmel.

HACKBERRY Celtis occidentalis L.

SUGARBERRY (Sugar Hackberry) Celtis laevigata Willd.

RED MULBERRY Morus rubra L.

OSAGE-ORANGE (Bois-d’arc) Maclura pomifera (Raf.) Schneid.

SOUTHERN MAGNOLIA (Evergreen Magnolia) Magnolia grandiflora L.

SWEETBAY (Sweetbay Magnolia) Magnolia virginiana L.

PAWPAW Asimina triloba (L.) Dunal

REDBAY Persea borbonia (L.) Spreng.

SASSAFRAS Sassafras albidum (Nutt.) Nees

WITCH-HAZEL Hamamelis virginiana L.

SWEETGUM (Redgum) Liquidambar styraciflua L.

AMERICAN SYCAMORE Plantanus occidentalis L.

HAWTHORN (Haw) Crataegus L.

RIVERFLAT HAWTHORN (Mayhew) Crataegus opaca Hook. and Arn.

MEXICAN PLUM Prunus mexicana S. Wats.

FLATWOODS PLUM (Black Sloe) Prunus umbellata Ell.

BLACK CHERRY Prunus serotina Ehrh.

CAROLINA LAURELCHERRY Prunus caroliniana (Mill.) Ait.

EBONY BLACKBEAD (Texas Ebony) Pithecellobium flexicaule (Benth.) Coult.

CATCLAW ACACIA (Una de Gato) Acacia greggii A. Gray

GREGG LEADTREE Leucaena greggii S. Wats.

HONEY MESQUITE Prosopis juliflora var. glandulosa (Torr.) Cockerell

EASTERN REDBUD Cercis canadensis L.

HONEYLOCUST Gleditsia triacanthos L.

WATERLOCUST Gleditsia aquatica Marsh.

BLACK LOCUST (Yellow Locust) Robinia pseudoacacia L.

HERCULES-CLUB (Prickly-Ash) Zanthoxylum clava-herculis L.

COMMON HOPTREE (Wafer-Ash) Ptelea trifoliata L.

SHINING SUMAC (Dwarf or Flameleaf Sumac) Rhus copallina L.

POISON-SUMAC Toxicodendron vernix (L.) Kountze

AMERICAN HOLLY Ilex opaca Ait.

YAUPON Ilex vomitoria Ait.

SILVER MAPLE Acer saccharinum L.

RED MAPLE Acer rubrum L.

BOXELDER Acer negundo L.

OHIO BUCKEYE Aesculus glabra Willd.

WESTERN SOAPBERRY (Wild China-Tree) Sapindus drummondii Hook. Arn.

AMERICAN BASSWOOD (American Linden) Tilia americana L.

DEVILS-WALKINGSTICK (Hercules-Club) Aralia spinosa L.

BLACK TUPELO (Blackgum) Nyssa sylvatica Marsh.

WATER TUPELO (Cotton-Gum or Tupelo-Gum) Nyssa aquatica L.

FLOWERING DOGWOOD Cornus florida L.

TREE SPARKLEBERRY (Farkleberry) Vaccinium arboreum Marsh.

GUM BUMELIA (Woolly Buckthorn—Gum-Elastic) Bumelia lanuginosa (Michx.) Pers.

COMMON PERSIMMON Diospyros virginiana L.

COMMON SWEETLEAF (Horse-Sugar) Symplocos tinctoria (L.) L’Hér.

TWO-WING SILVERBELL (Snowdrop Tree) Halesia diptera Ellis

CAROLINA ASH (Water Ash) Fraxinus caroliniana Mill.

WHITE ASH Fraxinus americana L.

GREEN ASH Fraxinus pennsylvanica Marsh.

SWAMP PRIVET (Common Adelia) Forestiera acuminata (Michx.) Poir.

FRINGETREE (White Fringetree) Chionanthus virginicus L.

NORTHERN CATALPA (Western Catalpa) Catalpa speciosa Warder

DESERTWILLOW Chilopsis linearis (Cav.) Sweet

COMMON BUTTONBUSH Cephalanthus occidentalis L.

RUSTY BLACKHAW (Viburnum) Viburnum rufidulum Raf.

Other Texas Trees

- ARIZONA CYPRESS (Cupressus arizonica Greene)

- ALLIGATOR JUNIPER (Juniperus deppeana Steud.)

- DROOPING JUNIPER (Weeping Juniper) (Juniperus flaccida Schlect.)

- ONE-SEED JUNIPER (Juniperus monosperma [Engelm.] Sarg.)

- ROCKY MOUNTAIN JUNIPER (Juniperus scopulorum Sarg.)

- TEXAS PALMETTO (Sabal texana [O. F. Cook] Becc.)

- SOUTHERN BAYBERRY (Sweet Myrtle or Wax Myrtle) (Myrica cerifera L.)

- RIO GRANDE COTTONWOOD (Populus fremontii var. wislizenii S. Watts)

- SPECKLED ALDER (Hazel Alder) (Alnus rugosa [Du Roi] Spreng.)

- SWEET ACACIA (Huisache) (Acacia farnesiana [L.] Willd.)

- GUAJILLO (Acacia berlandieri Benth.)

- GREAT LEADTREE (Mexican Leadtree) (Leucaena pulverulenta [Schlecht] Benth.)

- TEXAS SOPHORA (Coral Bean) (Sophora affinis Torr. and Gray)

- TEXAS PORLIERIA (Guayacan) (Porlieria angustifolia [Engelm.] A. Gray)

- BARETTA (Helietta parvifolia [A. Gray] Benth.)

- TREE OF HEAVEN (Ailanthus altissima [Mill.] Swingle)

- CHINABERRY (Melia azedarach L.)

- AMERICAN SMOKETREE (Chittamwood) (Cotinus obovatus Raf.)

- TEXAS PISTACHE (Pistacia texana Swingle)

- EASTERN WAHOO (Euonymus atropurpureus Jacq.)

- FLORIDA MAPLE (Southern Sugar Maple) (Acer barbatum Michx.)

- BIGTOOTH MAPLE (Acer grandidentatum Nutt.)

- UVALDE BIGTOOTH MAPLE (Sugar or Mountain Maple) (Acer grandidentatum var. sinuosum [Rend.] Little)

- FLORIDA BASSWOOD (Tilia floridana Small)
- CAROLINA BASSWOOD (Tilia caroliniana Mill.)
- TAMARISK (Tamarix species)

- BUCKTHORN BUMELIA (Buckthorn) (Bumelia lycioides [L.] Pers.)

- TEXAS BUMELIA (Bumelia lanuginosa var. rigida A. Gray)

- TEXAS PERSIMMON (Black Persimmon) (Diospyros texana Scheele)

- TEXAS ASH (Fraxinus texensis [A. Gray] Sarg.)

- BERLANDIER ASH (Mexican Ash) (Fraxinus berlandieriana A. DC.)

- ANACAHUITA (Texas Wild-Olive) (Cordia boisseri A. DC.)

- ANAQUA (Ehretia anacua [Mier and Berland.] Johnst.)

- TEXAS MADRONE (Arbutus texana Buckl.)

- AUSTRIAN PINE (Pinus nigra Arnold)

- RUSSIAN-OLIVE (Elaeagnus angustifolia L.)

- BUFFALOBERRY (Silver Buffaloberry) (Shepherdia argentea [Pursh] Nutt.)

- SIBERIAN ELM (Chinese Elm) (Ulmus pumila L.)

- WINTERBERRY EUONYMUS (Euonymus bungeanus Maxim.)

Tree Identification Guide

- THE SOFTWOODS
- THE HARDWOODS TREES WITH SIMPLE LEAVES
- TREES WITH COMPOUND LEAVES
- TREES WITH DOUBLY-COMPOUND LEAVES
- TREES THAT PREFER WET SITES
- HARDWOOD TREES WITH EVERGREEN LEAVES
- TREES WHOSE LEAVES TURN RED IN AUTUMN
- TREES WHOSE LEAVES TURN YELLOW IN AUTUMN

- TREES WITH SEEDS WINGED OR WITH PARACHUTE-LIKE ATTACHMENTS

- TREES WITH SOFT BERRY-LIKE FRUIT
- TREES WHICH PRODUCE NUTS
- TREES WITH PODS AS FRUIT
- TREES WITH BRIGHT RED FRUIT
- TREES WITH SPINES OR THORNS
- TREES WITH CORKY PROJECTIONS ON TWIGS
- TREES WHOSE TWIGS HAVE A CHAMBERED PITH

- TREES KNOWN BY THE COLOR AND SHAPE OF THE TWIG PITH

- TREES WITH SINGLE LARGE FLOWERS

- TREES WITH FLOWERS IN CLUSTERS

- TREES WHOSE BLOSSOMS APPEAR BEFORE OR WITH THE LEAVES

- TREES WHOSE BLOSSOMS APPEAR AFTER THE LEAVES

Glossary

Index

PARTIAL LIST OF TREES RECOMMENDED FOR SHADE AND WINDBREAKS

- East Texas
- Coastal Prairie
- Central Texas
- South Texas
- West Texas
- Panhandle

CODE OF BEHAVIOR WITH OUTDOOR FIREBRANDS
Transcriber’s Notes
Transcriber’s Note on Linking between eBooks
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