Chapter III: Front Matter (3)
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
GREAT LEADTREE (Mexican Leadtree)
(Leucaena pulverulenta [Schlecht] Benth.)
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Forest Trees of Texas: How to Know ThemChapter III: Front Matter (3)
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