Part 7

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.

[Illustration: FRENCH MULBERRY]

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)

[Illustration: PRAIRIE SKULLCAP]

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.

[Illustration: SLENDER DRAGON-HEAD BRAZOS MINT]

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.”

[Illustration: HENBIT PRAIRIE PENNYROYAL]

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.

[Illustration: PALE WILD BERGAMOT]

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.

[Illustration: GREEN HORSEMINT]

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.

[Illustration: 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.

[Illustration: PRAIRIE SAGE RED SAGE]

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.

[Illustration: TEXAS SAGE BLUE SAGE]

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)

[Illustration: PURPLE NIGHTSHADE]

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.

[Illustration: BUFFALO-BUR]

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.

[Illustration: LOW GROUND CHERRY PURPLE GROUND CHERRY]

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)

[Illustration: PURPLE PAINT-BRUSH CENIZO]

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.”

[Illustration: SCARLET PAINT-BRUSH]

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.

[Illustration: TEXAS TOAD-FLAX SMALL-FLOWERED BEARD-TONGUE]

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_.

[Illustration: LARGE-FLOWERED BEARD-TONGUE]

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.

[Illustration: SCARLET PENTSTEMON]

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)

[Illustration: DESERT WILLOW]

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)

[Illustration: FLAME ACANTHUS]

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.

[Illustration: WILD PETUNIA]

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.