Branches often 4-angled; leaves opposite; flowers often whorled; calyx 5-lobed; petals 4-5, united; calyx and corolla often 2-lipped; stamens 4, on corolla-tube; ovary often 4-celled.

Slender Vervain (Verbena halei) was, until a few years ago, considered the same as the European vervain (Verbena officinalis), but it is now recognized as a different plant. Misty-looking purple patches on the roadside ahead usually turn out to be masses of the slender vervain. It is a perennial which takes on renewed blooming activity from early spring until fall, but usually only scattered plants bloom after June. It is very abundant in this state and other Southern States.

The flowers are small and scattered along the slender branches at the top of the stem. The upper leaves are narrow, those of the mid-stem divided; and the lower are broad and irregularly toothed.

Large-Flowered Vervain (Verbena plicata) shows some variation in color from white to lavender, the flowers commonly being a bluish-lavender. The flowers are about half an inch broad and grow in long showy spikes. The plants are perennial, and numerous stems form erect clumps 1-2 ft. high. It is especially handsome southwest of San Antonio and ranges into Mexico. It blooms from February to May.

Wild or Plains Verbena (Verbena bipinnatifida) is sometimes called sweet William, a name which properly belongs to the blue woodland phlox (Phlox divaricata) or to the clove pink. There is only a faint fragrance to the wild verbena.

Along highways and in the fields the wild verbena blooms in great profusion from spring until the plants are killed by a severe freeze. The flower stalks often grow quite long and are topped by a flat cluster of flowers around the new buds. The old calyx tubes surrounding the small nutlets remain on the stalk for many weeks. Children delight in pulling off the purple tubular corollas so that they can suck the abundant nectar from the tube and then string them together for a necklace, which they make by inserting the base of one tube into the throat of the adjoining corolla.

The wild verbena is a perennial plant with many prostrate branches. The leaves are thick, rough, and divided into narrow segments. It is one of the most familiar plants of the South Plains region, ranging from Missouri and Arizona to Northern Mexico. It is seldom used in gardens, but it is one of the plants used by the highway department for roadside planting. Where it has been used in gardens for low border mass effects, it has been a delight throughout the warm months with its showy, profuse blooms.

“Verbena” is the Latin name for a sacred plant. There are nearly one hundred species of verbenas, one of which is European and the others American. About twenty-five of these are found in Texas, part of them belonging to the vervain group. The plains verbena and the slender vervain are the ones most widely distributed. Among other very lovely verbenas found in the state are Wright’s verbena in West Texas and Lambert’s verbena in East Texas. A South American verbena (Verbena venosa), with brilliant purple flowers, has escaped cultivation in Southeast Texas.

Wright’s Verbena (Verbena wrightii) is quite similar to the plains verbena but has larger flowers of a reddish-purple color. The plants are larger, and the foliage is coarser.

Lambert’s Verbena (Verbena canadensis) has ovate leaves which are toothed or lobed but not divided. The flowers are a reddish-purple and have a white eye surrounded by a line of black. This is a handsome verbena which does well in cultivation but is little used. Garden hybrids have been reported from it. The origin of the common garden verbena is not definitely known.

French Mulberry (Callicarpa americana) is a low shrub 3-6 ft. high, also known as the Bermuda mulberry or sour-bush. It is easily recognized in the fall by the clusters of reddish-purple berries and large ovate leaves 3-6 in. long. The showy berries are responsible for the scientific name which means “beautiful fruit.” It grows in woods of sandy areas from Central Texas to Florida and Virginia, and also in the West Indies. The variety with white fruit is not so common as the purple-fruited variety. The flowers are inconspicuous, pale pink or white. The shrub is well-known in cultivation but is not so hardy as the Japanese callicarpa.

The verbena family includes many tropical and sub-tropical shrubs, some of which are widely cultivated in Texas. Lantana (Lantana camara) has orange and yellow flowers and is a profuse summer bloomer. The common lilac lantana in cultivation was introduced from Brazil, but there are two native lilac lantanas in Southern Texas. Lavender, or vitex, introduced from Europe, is an excellent shrub for summer bloom.

MINT FAMILY (Labiatae)

Stems usually 4-angled; leaves opposite; calyx 5-lobed, often 2-lipped; corolla 4-5-lobed, usually 2-lipped; stamens 4 or 2, on corolla-tube; fruit of 4 nutlets.

Prairie Skullcap (Scutellaria resinosa) turns its saucy flowers upward and covers the dense clumps with a purple glow. The tubular flowers are nearly an inch long and 2-lipped, with two short lobes forming the velvety, arched upper lip and with three broad lobes forming the spreading lower lip. The middle lobe is marked by a conspicuous white spot dotted with purple. Numerous stems grow from a woody, perennial root on rocky prairies and limestone slopes from Texas to Arizona and Nebraska.

The many skullcaps in the state are easily distinguished from other mints by the crest on the upper surface of the calyx. Most of them have small oval or rounded leaves, and all have purple flowers. They get their scientific name from the Latin word meaning “dish,” referring to the shape of the calyx.

The mint family is a large one, well represented in Texas. The European horehound (Marrubium vulgare) has become a pernicious weed in the pastures of Central Texas. Rosemary, sage, thyme, lavender, majoram, and the mints are familiar members of the mint family.

Slender Dragon-Head or Lion’s Heart (Physostegia intermedia) has spikes of delicate lavender flowers. The slender stems, 1-3 ft. high, grow from perennial roots in moist soil on prairies from Texas and Louisiana to Missouri and Kentucky from April to July. The physostegias are rapidly growing in favor as garden flowers, as different species will produce blooms throughout the season, if the flowering spikes are cut and not allowed to seed.

Brazos Mint (Brazoria scutellarioides) is a lovely little annual found on the plains of Central Texas. The plants are usually less than a foot high and seldom branched, but the dense spikes of lavender flowers make it quite conspicuous during favorable seasons. Although the name indicates a resemblance to the skullcap, it might be mistaken for a dwarf physostegia. The corollas have much the same delicate lavender coloring, but the flaring calyx more closely resembles that of the Texas salvia. It is also called twin-flower, wild lilac, and honey plant.

Brazoria truncata, with larger and paler flowers, is very abundant in sandy soil in Central Texas, being especially common in Gonzales County. This plant was first collected near the Brazos River, a fact commemorated in the scientific name of “Brazoria.”

Henbit. Dead Nettle (Lamium amplexicaule) is a troublesome weed on lawns everywhere in the state and in most of the United States. It is a winter annual introduced from Europe and Asia. The flowers often begin to bloom in December and continue until March or April. The stems branch from the base, and the flowers grow in stalkless clusters with the upper leaves.

Prairie Pennyroyal. Lemon Mint. Mexican Tea (Hedeoma drummondii) is a low perennial plant characterized by the lemon-like odor of the foliage, the narrow, tubular lavender corollas, and the bulging finely-ribbed tubular calyx. The flowers and leaves are about half an inch long. The low, bushy clumps grow on rocky plains and hillsides throughout Texas, the flowers blooming during the late spring and summer. A tea made from the foliage, either fresh or dried, is considered of value for its soothing effect. A few leaves in iced tea add a piquant flavor. The name is from the Greek and means “sweet smell.”

The American pennyroyal is Hedeoma pulegioides. The leaves and flowering tops are collected in July and August and dried. It yields an oil used in medicine.

Pale Wild Bergamot (Monarda fistulosa mollis) is a very lovely member of the horsemint group. The slender stems are branched at the top, each branch having a terminal cluster of lavender flowers. The flowers are tubular and two-lipped, 1-1½ in. long, the upper lip narrow and the lower broad and three lobed. The upper lip is clothed with soft hairs.

The wild bergamot grows in the states east of the Rocky Mountains, and several varieties are known. In Texas it grows in moist woods in the eastern part and along streams in North Texas. It is a perennial which is sometimes cultivated. The stems are usually about two feet high. The leaves are short-stalked and lance-shaped, the margins having a few short teeth. The leaves have a pleasant aroma and are used in flavoring tea. Medicinally they are used as a stimulant and as a remedy for colic pains.

The brilliant, scarlet-flowered Oswego tea (Monarda didyma) of the Eastern States is not native to Texas. It is used as a substitute for tea.

Green or White Horsemint (Monarda punctata) differs from the wild bergamot in having numerous clusters of flowers at the top of the stem. These clusters are surrounded by many short, drooping floral leaves which are blotched with white or occasionally have a purplish tinge. The yellow corollas are dotted with purple and are about an inch long. The calyx tube is ribbed, and the lobes are short and triangular. In growth habit and shape of leaves it is very much like the purple horsemint, but in flower it is readily distinguished by the yellow flowers and green and white floral leaves. The plants are perennial, much-branched, and somewhat downy. They are found in the Eastern and Central States and bloom in Texas from late May to July.

Dwarf Horsemint (Monarda clinopodioides) is another horsemint of sandy plains in Texas and Oklahoma. The plants are usually less than a foot high. They have white corollas, and the short bracts are purplish-brown with hairy margins. This horsemint is not so widespread as the green and purple horsemint.

Purple Horsemint. Lemon Monarda (Monarda citriodora) is lovely not only because of its dainty flowers but especially because of the floral leaves or bracts surrounding the flowers. These bracts take on a reddish-purple color and may be marked with white and green. The purple varies from rosy tints to a royal hue.

The flowers grow in whorls or rosettes at the top of the stem, new ones appearing with continued growth until there may be ten or more clusters on a stem. The corollas are narrow, tubular, and two-lipped, varying in color from lavender to white and commonly marked with small purple dots. The tubular calyx has five very narrow lobes, which are hairy and as long as the tube; the throat of the calyx is closed by a dense ring of white hairs.

Growing in erect clumps one to two feet high, the plants form conspicuous patches along highways and cover many pastures. The leaves are short-stalked and narrowed at both ends, the margins being sharply toothed. The purple floral leaves are oblong, with the midrib prolonged into a slender bristle or awn. These numerous bracts curve downward and overlap, the lower ones being longer.

The purple horsemint is common on plains from Mexico to Missouri and Kansas and ranges eastward to Florida. It blooms from May to August but is most profuse in June.

The monardas are North American plants named in honor of Nicolas Monardes, a Spanish physician and botanist. Some are valued for their perfume oils, and some have a slight medicinal value. The purple horsemint is rich in nectar, but the honey produced is not of the first quality. The dried plants are used in hens’ nests to drive off mites and fleas.

Plains Lemon Monarda (Monarda pectinata) is the common horsemint on the dry western plains in the state and ranges to Arizona and Nebraska. The flowers are pink or white but are not spotted with purple. The floral leaves are lance-shaped.

Prairie Sage (Salvia pitcheri) grows in scattered clumps throughout the central prairie region from Texas to Illinois and Minnesota. Because of its sky-blue, tubular, 2-lipped flowers, it is one of the plants most easily identified. The gray-green leaves have the characteristic sage odor and can be used for sage tea. The plants are two to three feet high and bloom from late spring to November.

Red Sage or Salvia. Indian Fire (Salvia coccinea) is a hardy plant in cultivation and blooms nearly all the year. It is native to the Gulf States, in Texas growing in woods near the coast. The red flowers are nearly an inch long.

There are nearly five hundred salvias known. Three European species are cultivated for their leaves, and many others are grown for ornamental purposes. The common bedding salvia is Salvia splendens, native of Brazil. The handsomest flower in the state is the red-flowered Salvia regla, found in a few mountain canyons in West Texas. Cancer weed (Salvia lyrata) is the common salvia of East Texas woods.

Blue Sage. Blue Salvia (Salvia farinacea) is a lovely plant which is native and abundant in the limestone regions of the state. It has long been known in cultivation, being especially adapted for rock gardens and highway plantings. It blooms with renewed activity after every rain from April to November. The corollas are usually purple but vary to blue and white. They have a narrow upper lip which is velvety with violet hairs on its outer surface. The calyx is velvety with violet-gray hairs. The stems grow from perennial roots and form clumps two to three feet high.

Texas Salvia. Texas Sage (Salviastrum texanum) blooms from March to May, growing in a low bushy clump 12-18 inches high on limestone hillsides from Central Texas to New Mexico. The spikes are densely covered with lavender flowers about an inch long. Unlike the true salvias, it has a flaring calyx which is densely bearded in the throat.

POTATO FAMILY (Solanaceae)

Leaves alternate; calyx 4-6-lobed; petals united, 5; stamens 5, on corolla-tube, anthers often opening by apical pores; ovary 2-celled; fruit a capsule or berry.

Purple Nightshade (Solanum elaeagnifolium) is sometimes called silver-leaved nightshade or “trompillo.” Although bearing lovely star-shaped lavender flowers, the purple nightshade is considered a pernicious weed in fields and gardens. It grows from deep, woody perennial roots and blooms profusely even in seasons of drouth from May to October. It is found on plains from Missouri to Texas and Arizona. The branched plants grow 1-3 ft. high and are more or less covered with prickles. The yellow fruits resemble small tomatoes and remain on the old stalks for months. They are said to be poisonous.

Torrey’s Nightshade (Solanum torreyi) is a plant similar to the purple nightshade, but it has broader, irregularly-toothed leaves and larger flowers and seldom grows as high.

The solanum group comprises nearly a thousand species and includes many well-known plants, among which are the Irish potato and the egg-plant. Bitter-sweet and Jerusalem cherry are cultivated for their showy fruits. Several members of the group are said to be very poisonous.

Buffalo-Bur. Yellow Nightshade (Solanum rostratum) is a common weed in waste places and on prairies from Tennessee to Mexico, but the spreading plants are often covered with their yellow star blossoms. Children call them sticker-weeds because of the vicious prickles on the foliage. They are also called tread-softly, Texas nettle, prickly potato, and bumble-bee bush, the latter name being given because of the numerous bee visitors. The name of buffalo-bur dates back to the days when buffaloes roamed the plains, the prickly fruits clinging to the shaggy coats of the huge beasts.

The yellow flowers which bloom from May to October resemble those of the purple nightshade in shape and size. The stamens of the nightshades shed their pollen through small openings at the top of the pollen-sac. The buffalo-bur has one stamen very much larger than the other four. The leaves are once or twice divided into broad rounded segments. The berries are enclosed in the enlarged and spiny calyx.

Low Ground Cherry (Physalis mollis) is a common weed throughout the state and ranges to Arkansas, Mexico, and California. The flowers and fruits are usually hidden beneath the leaves. The fruit, a berry very much like a small tomato, is enclosed in the enlarged sac-like calyx. The scientific name is from the Greek word meaning “bladder” and refers to the inflated calyx. Some ground cherries are cultivated for their fruits which are edible and are used for making preserves and pies.

Purple Ground Cherry (Physalis lobata) flaunts its gay purple flowers for all to see. The plant has low, spreading branches which are covered with purple blooms, one inch broad. It ranges from Mexico to Kansas and California, blooming in Texas from spring to fall.

The potato family includes the tomato and tobacco plants. Wild tobacco (Nicotiana repanda) is very abundant in the southern part of the state. The white flowers resemble those of the cultivated petunia, which also belongs to this family.

FIGWORT FAMILY (Scrophulariaceae)

Leaves alternate, opposite, or whorled; sepals, 4-5; corolla tubular, 4-5-lobed, 2-lipped; stamens often 4, in pairs on corolla-tube, sterile stamen often present; ovary 2-celled, superior.

Purple Paint-Brush (Castilleja purpurea) grows on limestone slopes and rocky prairies in North-central Texas. The low stems grow from a woody perennial root. The flowers and floral leaves are both conspicuously colored, varying from rose to purple. The divided leaves are a lovely ashy-gray.

Leucophyllum. White Leaf. Cenizo (Leucophyllum texanum) covers hillsides in the southern and southwestern parts of the state. The low bushes seldom grow more than three or four feet high. It is a startling and lovely sight to see a hillside which was a mass of gray transformed overnight into a delicate hue of lavender. This happens shortly after heavy rains, and for this reason the plant is sometimes called barometer bush. Leucophyllum has been widely introduced as a shrub in Texas gardens, where the ashy-gray leaves are quite effective against dark green shrubbery. The name is Greek and means “white leaf.”

Scarlet Paint-Brush (Castilleja indivisa) is also called Indian paint-brush, painted-cup, entire-leaved paint brush, and Indian pink. One of the most inspiring landscape displays of native flowers is formed by the scarlet paint-brush. It is found in sandy soil from the northeastern to southwestern parts of the state and blooms from March to May but is at its best in April. The paint-brush display of red is equalled or excelled only by that of two other wild-flower favorites—the red Drummond’s phlox in south-central sandy regions and the beautiful gaillardia of black land prairies.

The intense scarlet-red is due to the coloring of the broadened floral leaves (bracts) at the tip of the stem. These bracts almost hide the inconspicuous cream-colored flowers which are about an inch long. The bracts are oblong, the tips being broader than the base and deeply stained with scarlet.

The scarlet paint-brush is an annual plant, commonly six to twelve inches high, and is sometimes branched at the base. The leaves are rough-nerved and wavy-margined. Occasionally the leaves have two linear basal lobes somewhat like those of the eastern or swamp scarlet paint-brush (Castilleja coccinea), which has similar flower clusters but grows in swampy places.

The castillejas are mostly Western American plants, some being parasitic on the roots of other plants. They are named in honor of D. Castillejo, a Spanish botanist. In addition to the scarlet and purple paint-brushes, several other castillejas are found in the state. Lindheimer’s paint-brush (Castilleja lindheimeri) is very much like the purple paint-brush, but it has red or orange bracts. It is a perennial plant which grows on limestone hillsides of Southwest-central Texas. The woolly-stemmed paint-brush (Castilleja lanata) has woolly-gray stems and leaves and red flower clusters. It may be noticed in chaparral thickets and canyons in West Texas.

Small-Flowered Pentstemonor or Beard-Tongue (Pentstemon laxiflorus) grows in the sandy soil of post oak woods in Central and East Texas. The slender stems are 1-2 ft. high and are topped by slender-stalked flower clusters. The corollas are a pale lavender, about an inch long. This is a very common plant in the state and has been given various names by botanists, the latest one being laxiflorus. It is a close relative, probably a variety, of the slender beard-tongue (Pentstemon gracilis) of moist prairies from Minnesota to Oklahoma.

Texas Toad-Flax (Linaria texana) has pale blue flowers similar to those of the Canada toad-flax. The corollas have a slender spur about half an inch long. The slender stems are 1-2 feet high, growing from a cluster of basal leaves which are finely divided into somewhat rounded segments. It is widespread in sandy soil from Florida to California and blooms early in the spring.

Many other figworts are found in the state. The nearest relative to the garden snapdragon is the climbing snapdragon (Maurandia antirrhiniflora). Mullein is widespread in the state. The common monkey-flower is Mimulus glabratus.

Large-Flowered Beard-Tongue or Pentstemon (Pentstemon cobaea) is also known as false foxglove, dew flowers, fairy thimbles, wild belladonna, and balmony. It was called “balmony” by early settlers, who made a tea from the leaves to be used as a laxative. Several erect stems from perennial roots grow on the rocky slopes of prairies from Texas to Missouri and Kansas. It blooms in Texas in April and May.

The flowering spikes of bell-shaped flowers are large and showy. The corollas are usually pale, tinged with reddish-purple and marked with darker lines. The fifth stamen is sparingly bearded. The stems are 1-1½ feet high, and the flowers are 1½-2 inches long. The leaves are broad and partly clasping at the base, the margins usually indented with sharp teeth. It is thought that the common garden pentstemon is a hybrid derived from this beard-tongue and Hartwig’s pentstemon, a Mexican plant.

Scarlet Pentstemon or Beard-Tongue. Murray’s Pentstemon (Pentstemon murrayanus) is a very lovely plant growing in sandy soil in post oak woods of Central and East Texas and Arkansas. The plants are three feet high, the reddish stems having a few opposite, clasping leaves, those on the upper part being united and cup-shaped. The foliage is very smooth and has a somewhat downy covering.

The flowering upper portion of the stem is often over a foot long and bears a profusion of tubular scarlet flowers about an inch long. The stamens extend beyond the corolla, and the fifth stamen is not bearded. The long slender style remains on the capsule long after the corollas have fallen away. The flowers usually bloom the latter part of March in South Texas and the middle of April in North Texas. The plants are quite hardy and may be successfully transplanted or grown from seeds, but should be planted in sandy soil.

“Pentstemon” is Greek meaning “five stamens.” Nearly all members of the figwort family have only four stamens, but the pentstemons have five; however, the fifth stamen does not bear a pollen-sac and is often bearded. “Beard-tongue” refers to this bearded stamen. There are nearly a hundred and fifty species of pentstemons, about thirty of them being found in Texas. With the exception of one found in Southeastern Asia, they are all North American plants.

Murray’s pentstemon is quite similar to two red-flowered pentstemons of the mountains of West Texas. These two are likewise tall, vigorous plants and have showy clusters of flowers. Torrey’s pentstemon (Pentstemon barbatus torreyi) has narrow pointed leaves, and the superb pentstemon (Pentstemon superbus) has broad oblong leaves. The common blue-flowered pentstemon in West Texas is Pentstemon fendleri, with leaves nearly as broad as long.

TRUMPET-CREEPER FAMILY (Bignoniaceae)

Leaves opposite, mostly compound; flowers showy, often 2-lipped; calyx tubular, 5-lobed; petals 5, united; stamens 4 or 2, in pairs on corolla-tube; capsules often long, with winged seeds.

Desert Willow (Chilopsis linearis), also called flowering willow, willow-leaved catalpa, and “mimbre,” is a common shrub along water courses from West Texas to Southern California and Northern Mexico. When it is not in flower or fruit, it may be mistaken for the black willow (Salix nigra), which has similar leaves. The delicate, lavender, trumpet-shaped flowers are about two inches long. White and pale-lavender forms occur. It is a shrub or small tree frequently cultivated for ornament in Texas and California. It blooms from May through the summer months. Mexicans use the wood for fence-posts and the branches for baskets. A tea made from the flowers is used as a remedy for heart and lung diseases.

Several other members of this family are native to the state and are well-known in cultivation. Among these are the red-flowered trumpet-creeper (Campsis radicans), the yellow-red cross-vine (Bignonia capreolata), the catalpa found in East Texas woods, and the yellow-elder (Tecoma stans) in South Texas and the mountains of West Texas.

ACANTHUS FAMILY (Acanthaceae)

Leaves opposite; calyx 4-5-lobed; sepals 5; petals 5, united, sometimes 2-lipped; stamens on tube, 2 or 4 in 2 pairs; fruit a capsule, often club-shaped, opening elastically.

Flame Acanthus (Anisacanthus wrightii) is covered with scarlet flowers from early summer until frost. It is a low, widely branched shrub, about 2 feet high, found in rocky soil of the mountains of West Texas. The corollas have a narrow tube and five narrow, spreading lobes which are nearly equal but somewhat 2-lipped. The two stamens and the style extend beyond the corolla. The small leaves are ovate-lanceolate in shape and are 1-2 inches long.

The flame acanthus is an excellent garden shrub for dry regions and has been known in cultivation for some time. This species is named in honor of Charles Wright, an early collector of Texas plants and one of the first teachers in the state. Wright was a Yale graduate who collected plants in Texas from 1837 to 1852 for Dr. Asa Gray of Harvard University. He accompanied a baggage train to El Paso in 1849, and in 1851 he joined the Graham Boundary Survey. On both of these trips he collected many plants not previously known to science.

Wild Petunia. Ruellia (Ruellia nudiflora) has flowers very much like those of the cultivated petunia, a member of the potato family. It is a very common plant in Central and South Texas, growing in open woods or on rich prairies. It frequently takes possession of lawns and flower beds.

The plants are erect, 12-16 inches high, and have few branches. The few leaves are oval, narrowed at the base, wavy-margined, and blunt or rounded at the apex. The forking flower clusters have one to five flowers open at the same time. The flowers do not last very long. Leaves and stem are often marked with red or purple.

The delicate, funnel-shaped corollas have five spreading lobes and are about two inches long. The four stamens are inclosed in the tube. The seed-capsules are nearly an inch long and turn brown as they mature.

This ruellia was formerly confused with Ruellia tuberosa, a tropical plant with tuberous roots. The ruellias belong to a large group of plants with about 200 species most of which are found in tropical South America. They are named for Jean de la Ruelle, an early French physician and botanist.

There are several other ruellias widely distributed in the wooded sections of the state. The hairy ruellia (Ruellia ciliosa) is abundant on the prairies in Texas and the Eastern States. Miss Eaton, in an article in the National Geographic in 1925, reports that carpenter-bees use circular pieces of the corolla to plug off their nesting cells made in tunnels in soft wood. Drummond’s ruellia (Ruellia drummondiana) is found in woods in Central Texas. The flowers are rather small and are nearly hidden by the leaves.

PLANTAIN FAMILY (Plantaginaceae)

Herbs; leaves basal; calyx 4-lobed; corolla papery, 3-4-lobed; stamens 4, on corolla-tube; capsule (in ours) opening by a horizontal division.

Tallow-Weed. Wright’s Plantain (Plantago wrightiana) is a common plant on prairies from Texas to Arizona and blooms from April to June. It is called tallow-weed because cattle fatten on the plants. The stems are 6-8 in. high, and the numerous basal leaves are half as long, narrow, smooth, and dark green. The small 4-lobed flowers have a stiff, papery white corolla with spreading lobes. The small capsules open by a lid.

Red-Seeded Plantain or Ribwort (Plantago rhodosperma) has broad leaves, 3-5-ribbed, and narrow spikes of flowers. The leaf-rosettes are often a foot broad. The corolla lobes are erect and are closed over one another. The ribwort is a very common weed in sandy soil from Missouri to Texas and Arizona.

There are many other plantains in the state, all more or less abundant. The group has retained the old Latin name. Scilla-seed, a laxative in recent use, is obtained from a South American plantain. The seeds of the lance-leaved plantain are sold as food for birds.

MADDER FAMILY (Rubiaceae)

Leaves opposite or whorled; in ours, sepals and petals usually 4, but may be 4-10, calyx joining ovary wall; stamens 4-10, on corolla-tube; ovary inferior, 2-5-celled.

Small Bluet (Houstonia patens) has violet-blue flowers which are among the first blossoms of spring. They dot golf courses and sandy meadows from Texas to Virginia and Illinois in February and March. The bluets are also called innocence and angel-eyes.

Least Bluet (Houstonia minima) is a smaller plant than the small bluet, but the flowers are a little larger and are pale pink. They bloom at the same time of year and may often be found together. The least bluet ranges from Texas to Illinois and Kansas.

The madder-family is mainly tropical but is represented in Texas by nearly forty species. Nearly all of these have inconspicuous, 4-lobed white flowers and include many bedstraws and bluets, the button-weed, and button-bush. From some members of the family valuable commercial products—coffee, quinine, and a red dye—are obtained; the cape-jasmine or gardenia is a well-known ornamental plant.

Baby’s Breath. Narrow-Leaved Houstonia (Houstonia angustifolia) is not the garden plant (Gypsophila paniculata) which is known as baby’s breath, but it is equally dainty. The stems grow from woody perennial roots and form erect clumps about a foot high. The small flowers are borne in flat-topped clusters and vary in color from white to pale pink or lavender. This plant is widely distributed on prairies from Illinois to Texas and Florida.

Bouvardia (Bouvardia ternifolia) is a low shrub, 2-6 ft. high, which grows in the mountains west of the Pecos River to Arizona and Mexico. The leaves are short and grow in whorls of 3’s or 4’s. The narrow, red tubular flowers are about one inch long. The Bouvardias were once popular as greenhouse plants but are little used now. This one was introduced into England more than one hundred years ago.

HONEYSUCKLE FAMILY (Caprifoliaceae)

Usually shrubs; leaves opposite; calyx joining ovary wall, 5-lobed; corolla 5-lobed, tubular and often 2-lipped; stamens 4-5, on corolla-tube; ovary inferior; fruit a fleshy berry.

Southern Woodbine. Coral or Trumpet Honeysuckle (Lonicera sempervirens) is quite common in the woods of East Texas and other Southern States, blooming in Texas in late March and continuing until fall. It is an evergreen vine that has been widely introduced into cultivation. The flowers are not so conspicuously two-lipped as in the white honeysuckle, the corolla-lobes being nearly equal. The scarlet berries are ¼ inch long, ripening in the summer. This is one of a number of plants which are commonly called woodbine. The group was named in honor of Adam Lonitzer, an early German botanist.

The black haw (Viburnum prunifolium) is very abundant in Texas woods. The showy ball-like clusters of white flowers appear with the leaves in April and May, following the dogwood and red haws. The American elder (Sambucus canadensis) is found along streams in Central and East Texas.

White Honeysuckle (Lonicera albiflora) is a straggling bush which usually grows in the shelter of a tree. The pale broad, oval leaves are opposite and united at their bases, the uppermost pair being cup-shaped and surrounding the cluster of flowers borne at the tip of the stem. The fragrant flowers are less than an inch long with a narrow tube and 5 lobes, the lower lobe long and narrow and the 4 upper shorter, very much like those of the common cultivated Japanese honeysuckle. The five spreading stamens extend conspicuously beyond the corolla.

This plant blooms in April and May. It is scattered throughout the central and western parts of the state, being especially abundant in the western mountains, and ranges to Arkansas and Arizona. The Japanese honeysuckle has escaped cultivation in places along the bayous of East Texas.

VALERIAN FAMILY (Valerianaceae)

Leaves opposite; calyx of several bristles or absent; petals 2-5, partly united; stamens usually 4, on corolla-tube; ovary inferior, 3-celled but only 1 cell fertile.

Lamb’s Lettuce. Texas or Dwarf Corn Salad (Valerianella amarella) is one of the first white-flowered spring plants, growing in such abundance that the prairies are white with the blooms. It is a much smaller plant than the dwarf Queen Anne’s lace which is so lovely late in April and May. In the field it is usually about 6 in. high but grows a little higher in cultivation when used as a border plant. It is easily identified by its flat-topped clusters of flowers grouped in squares at the end of the widely forking branches. The smooth foliage is yellow-green in color.

There are several corn salads which grow in moist places in the state. The dwarf corn salad may readily be distinguished from these, as its minute seed-pod is covered with woolly hairs. The European corn salad is cultivated, and the leaves are used for salad.

GOURD FAMILY (Cucurbitaceae)

Tendrils mostly present, stems often prostrate; flowers usually unisexual; calyx tubular, 5-lobed; petals united or separate; stamens usually 3, one anther always 1-celled, the other two 2-celled; ovary inferior.

Wild Balsam Gourd (Ibervillea lindheimeri) has bright scarlet balls about an inch in diameter and makes conspicuous spots of color on fences in the fall. The vine is slender, bearing small yellow flowers in the spring. The fruits are green at first, turning orange and then a scarlet red. Sometimes they are a little longer than broad and pointed at the end. The few leaves are thick and deeply 3-5-lobed. It ranges from Texas to California.

The garden balsam (Impatiens balsamina) bears no relation to this plant. The vines in cultivation known as balsam apple and balsam pear are, however, members of the gourd family and were introduced from the Old World tropics. Watermelons, cantaloupes, cucumbers, squashes, pumpkins, and gourds are well-known members of the gourd family.