Part 6

The large, bell-shaped flowers, 2-3 inches broad, are a bluish-purple; in fading, they spread widely and take on more of the blue tinge. They are constricted into a short narrow tube at the base. Inside, the flowers are marked with yellow at the base and have purple markings in the throat. The five stamens with large anthers are attached to the corolla tube. At the time the pollen is shed, the anthers lie in a horizontal position around the style. The stigmas are interesting. There are two diamond-shaped lobes which are erect until they are ready to receive pollen, and then they take a horizontal position. The calyx has five linear lobes which are united at the base with a colorless membrane. The oblong capsules are about half an inch long.

The plants are very smooth and are erect, with a few erect branches. The leaves are ovate-oblong and are usually 1-2½ inches long.

“Eustoma” means “open mouth”, referring to the large throat of the flower. The smaller bluebell in Southern Texas and Northern Mexico is _Eustoma gracile_.

[Illustration: PINK TEXAS STAR]

Pink Texas Star. Prairie Sabbatia (_Sabbatia campestris_) is also known as meadow pink, rose pink, pink prairie gentian, marsh pink, and sea star. It ranges from Missouri and Kansas to Texas and is found on moist prairies throughout Central Texas from April to June. It is particularly abundant on southern coastal prairies where it makes a showy landscape display with phlox, coreopsis, and other plants in March and April. The sabbatias are named in honor of two Italian botanists, L. and C. Sabbati.

The plants are low, 3-12 inches high, and have wing-angled stems and short smooth leaves about ½-1¼ inches long. The flowers are about 1½ inches broad, much larger than those of the mountain pink, and more cup-shaped. They are usually deep pink in color, but purplish-pink and white forms may occasionally be noted. Around the throat are yellow, star-shaped markings over the white base of the petals. The long, linear calyx lobes are quite conspicuous when the flower is in bud or after the corolla has wilted.

DOGBANE FAMILY (Apocynaceae)

[Illustration: BLUE TEXAS STAR]

Plants with milky juice; sepals usually 5; corolla tubular, 5-lobed; stamens usually 5, inserted on corolla tube and alternate with the lobes; ovary superior; fruit mostly of 2 spreading follicles.

Blue Texas Star. Texas Dogbane. Blue-Star (_Amsonia texana_) belongs to a group named in honor of Charles Amson, a colonial physician. The stems are usually unbranched, 8-12 inches high, and are covered with narrow linear leaves. Like that of other amsonias, the tubular throat is lined with white hairs. The name of twin-pods might be given to the amsonias. The numerous seeds are borne in two narrow, erect pods which are united at the base and split along the inner sides. The pods are 3-4 inches long. The plant is perennial, growing in low clumps on limestone hillsides of Texas. The plants in North Texas form a conspicuous bluish-green line on low hills, when the flowers bloom in late March and April.

The oleander, periwinkle, and vinca are well-known members of the dogbane family. They all have a milky sap which is quite poisonous in the oleander, Indian hemp, and others. “Bane” is the common word in Northern Europe for “murderer” and is applied to poisonous plants.

MILKWEED FAMILY (Asclepiadaceae)

[Illustration: GREEN-FLOWERED MILKWEED]

Leaves usually opposite or whorled; sepals 5; petals 5, usually reflexed and with a 5-lobed crown; stamens 5, the pollen united into 1 or 2 waxy masses in each sac; carpels 2, free except for the united disk-like stigma.

Green-Flowered Milkweed. Silkweed (_Asclepiodora decumbens_) is a widespread plant from Arkansas to Utah and Northern Mexico. It is found on the central and western plains, blooming in early spring and sometimes again in the fall. The stout, leafy stems, topped by the ball-shaped heads of flowers form conspicuous clumps about a foot high. The flowers have a sweet nectar which draws many insect visitors. They bloom in April and early May, and the large warty pods mature in a few weeks. As the seeds bear a tuft of hairs at one end, they are easily scattered by the wind and other agents. It is one of the first plants to appear on burned-over areas.

The milkweeds get their name from the bitter milky sap. The flowers are quite different from other flowers in that there is a crown between the petals and the stamens. In many the pollen is borne in two pear-shaped masses with a thread-like connection. In the green-flowered milkweed, purple hoods are attached to the crown and hang over the pollen-sacs.

[Illustration: BUTTERFLY-WEED]

Butterfly-Weed. Pleurisy-Root (_Asclepias tuberosa_) is a well-known plant in dry fields from Maine and Ontario to Northern Mexico. In Texas it is found in the sandy areas of the eastern and central parts. It blooms in the late spring and summer. Other common names include orange milkweed, orange-root, Indian posy, and orange swallow-wort. The leaves are poisonous to stock, but the honey is not considered poisonous. The monarch butterfly is a voracious feeder on the plant. It was at one time valued for its medicinal properties, but is now little used. Several plants are known by the common name of “swallow-wort” and are so called because they bloom in the spring when the swallows appear.

The leafy stems often grow one to two feet high. At the top of the stem are several clusters of small orange-colored flowers. The petals hang down when the pollen is ready to be shed. There is a crown of five erect, orange-colored hoods around the flat stigma.

DICHONDRA FAMILY (Dichondraceae)

[Illustration: CAROLINA DICHONDRA PRETTY DODDER]

Herbs with creeping stems; sepals 5; corolla bell-shaped, 5-lobed; stamens 5; carpels 2, separate.

Carolina Dichondra. Ground Ivy (_Dichondra carolinensis_) is, of course, not even kin to the ivy, but it does form a green carpet over the ground in places. It is widely scattered in the state and in many other localities. The greenish-white flowers are small and inconspicuous under the round leaves and are almost buried in the soil. The leaves are about an inch broad and are slender stalked. The plant is a perennial which is often hard to remove from lawns. The silvery-leaved dichondra (_Dichondra argentea_) occurs in West Texas.

DODDER FAMILY (Cuscutaceae)

Pretty Dodder. Love Vine. Strangle-Weed (_Cuscuta indecora_) may be noted in conspicuous orange or gold masses covering other plants. It is a leafless parasitic vine bearing small clusters of white flowers. The flowers are less than one fourth inch broad and have the petal-tips turned inward. There are many dodders in the state, and each kind is parasitic only on certain plants. The pretty dodder attacks the wild verbena and other herbs and low shrubs from Illinois to Texas and other parts of America.

MORNING-GLORY FAMILY (Convolvulaceae)

[Illustration: TEXAS BINDWEED PURPLE MORNING-GLORY]

Plants twining or erect; sepals 5; corolla mostly funnelform, 5-lobed; stamens 5, on corolla tube; ovary superior; fruit usually a ball-shaped capsule separating into 2-4 lobes.

Texas Bindweed (_Convolvulus hermannioides_) has small white morning-glory flowers with a dark-red center. They are seldom more than an inch broad. The spreading or twining vines reach a length of several feet. The leaves are very variable in shape and often have spreading lobes at each side of the base like the hoary bindweed (_Convolvulus incanus_). Both grow on Texas plains, but the hoary bindweed is widely distributed from Kansas and Arkansas to Mexico. The Texas bindweed may be distinguished by the ear-like projections at the base of the sepals. The flowers bloom from April to August.

Purple Morning-Glory. Bindweed. Tie-Vine (_Ipomoea trifida_) is a lovely but pernicious vine of Texas, Mexico, and tropical America. The roots are perennial and very difficult to eradicate from cotton and corn fields. It blooms from spring to fall, the flowers opening only in the morning. The morning-glory group is very large, and many showy forms are found in Texas. The sweet potato (_Ipomoea batatas_) and others are valued for their tuberous roots.

[Illustration: STANDING CYPRESS BLUE GILIA WHITE GILIA]

PHLOX FAMILY (Polemoniaceae)

Mostly annual and perennial herbs; calyx 5-lobed; corolla tubular, 5-lobed; ovary usually 3-celled; style often 3-parted; stamens 5, inserted on corolla-tube; capsules small.

Standing Cypress. Red Gilia (_Gilia rubra_) might also be called torch flowers, for the tall spikes with their masses of red tubular flowers make flaming spots of color on the edges of the post oak woods in May and June. It is sometimes known as Indian plume, Texas plume, or red Texas star.

The plants are usually unbranched and grow two to three feet high; however, if the top of the stem is removed or injured near the time of flowering, it will branch into several flowering spikes. The stems are pale green and quite leafy with the finely dissected leaves. The narrow tubular flowers are over an inch long and have broad spreading lobes which, on their inner surface, are a pale orange-red dotted with a darker red. The flowers, which resemble those of the cypress vine, are closely clustered on the stem, those at the top opening first. The capsules are nearly an inch long and contain numerous papery seeds.

Blue Gilia. Golden Eye (_Gilia rigidula_), differing markedly from the red gilia in the shape of the flowers, has a short, broadly flaring corolla with a conspicuous yellow center. The flowers are nearly an inch broad. The plants are perennial and are often widely branched at the base, forming clumps nearly a foot broad. The blue gilia is found on hills and stony plains from Central Texas to Mexico and New Mexico and blooms from March to October.

White Gilia. Long-Flowered Gilia (_Gilia longiflora_) has slender, erect stems, 1-2 feet high, terminated by a flat-topped cluster of tubular white flowers. The flowers have a narrow tube, about 1½ inches long, and 5 broad, spreading lobes. The leaves have threadlike divisions. The plants are very showy when they are in bloom and are especially abundant in sandy regions of Northwest Texas in the late summer and fall.

Few flower groups show such a decided red, white, and blue as the gilias. The group is a large one, mostly of Western North America, and is named in honor of the Spanish botanist, Philipp Salvador Gil. Some of the gilias are known in cultivation and are considered hardy plants of easy culture. The standing cypress may be grown from seeds planted in August or September, or plants may be transplanted in the spring.

[Illustration: DRUMMOND’S PHLOX]

Drummond’s Phlox (_Phlox drummondii_) has rightly been called “Texan pride.” A drive late in April through the post oak sandy region east of Austin to the Brazos River and southeast to Victoria will disclose it in all its glory. The seeds were collected by Thomas Drummond in 1834 and sent to W. J. Hooker in the spring of 1835. Hooker, an eminent botanist, described it from the plants grown from those seeds in the Kew Gardens in London. According to his description, the plants were mostly of a brilliant rose-red with more or less purple in the flowers of some plants and darker red eyes in nearly all. It is quite probable that Drummond collected his seeds in the vicinity of Gonzales, the western limit of his Texas trip, where today wild phloxes which match his description occur in great profusion. The seeds collected may have included some from hybrid plants, as red phloxes with a white eye are found on the eastern edge of the red-phlox area, and the dark-eyed purple and red are found on its western limits in close proximity to the “phlox purple” variety.

The plant has long been a horticultural favorite, and more than 200 varieties have been described, few of which excel the native varieties in size or coloring.

[Illustration: PURPLE PHLOX]

Purple Phlox (_Phlox drummondii_-purple varieties) grows in sandy soil in Central Texas. The variety with the white throat and red-star eye is common in the southeastern part of the state. It is especially abundant in Wilson and Karnes Counties, where extensive masses of purple may be noted in open sandy places among mesquite and post oak trees. This is a very vigorous phlox and produces large stems and flowers. Studies are being made to determine whether these purple phloxes are varieties of Drummond’s phlox or should be called by other names.

The variety with the purple throat and the two white marks at the base of each corolla lobe grows northwest of the range of the red-flowered Drummond’s phlox. It blooms from April to June and seems to withstand cold better than any of the annual phloxes except the dwarf phlox.

[Illustration: HELLER’S PHLOX BERLANDIER’S PHLOX THARP’S PHLOX]

Berlandier’s Phlox (_Phlox glabriflora_) differs from Drummond’s phlox in many particulars. The flowers are usually a bluish-lavender which at a distance suggests the wild verbena. Like the other phloxes on this page, it has both stem and leaves clothed with scattered, long, soft hairs. The large corolla is marked with white at the base of the lobes and has a short, smooth tube. The vigorous plants branch profusely and often form masses two and three feet broad. This phlox may be found on sandy prairies south of Kingsville and west of Hebbronville in the winter and spring months but is at its best in February and March. It was first collected by Louis Berlandier at several places along the southern coast in 1828 and 1829.

Heller’s Phlox (_Phlox helleri_) is a close relative of Berlandier’s phlox but has a hairy corolla-tube, smaller flowers, and shorter leaves. It is found from March to May in sand near the coast around Copano, Aransas, and Nueces bays.

Slender Phlox (_Phlox tharpii_) has a long, hairy corolla-tube, and the slender stems are usually unbranched. Only four flowers are borne in a cluster. It is very abundant in Frio and Dimmit Counties in April. Theodore Roosevelt, in describing a peccary hunt south of Uvalde in April, 1904, mentions these fields of purple.

[Illustration: ROEMER’S PHLOX DWARF PHLOX]

Roemer’s Phlox (_Phlox roemeriana_) has lovely flowers which vary in color from deep rose to phlox purple or pink. It is the only annual phlox marked with yellow around the eye or throat. Its large capsule, containing 12 or 15 seeds, is another conspicuous feature and shows its relationship with the perennial phloxes of West Texas. It forms a lovely display with bluebonnets and low prairie spider-worts in the limestone hill region in April and early May.

Dwarf Phlox (_Phlox tenuis_) is the smallest and most widely distributed of the annual phloxes, ranging from the south-central coast to Louisiana and into Southern Oklahoma. It is found on the coastal prairie and in sandy soil along the edges of post oak woods from March to May. The plants are usually six to eight inches high and unbranched, but branched varieties are known. The flowers are about half an inch broad, with narrow lobes which are marked with two reddish-purple lines at their base.

[Illustration: LARGE-FLOWERED PRAIRIE PHLOX PRAIRIE PHLOX]

Prairie Phlox. Prairie Sweet William (_Phlox pilosa_) has a delightful fragrance common in lesser degrees to many of the phloxes. The widespread prairie phlox was named in 1753 from plants taken to France from Virginia. The stems are low and have a few opposite leaves which are pointed and widely spreading. The flat-topped clusters of pale pink, blue, white, or purple flowers bloom in March and April in Texas. The stems and flower clusters are clothed with soft hairs.

Large-Flowered Prairie Phlox (_Phlox villosissima_) grows in a strange environment for a phlox. Charles Wright found it in 1849 on the gravelly bars of the Nueces River, where it still grows. It is also found on other rivers in Southwest Texas. It has long, woody roots reaching toward the necessary moisture. The flowers are very large, and only a few are open at a time. It differs from the prairie phlox in its shorter and more numerous leaves, its larger flowers with their broader lobes, and alternate branches in the flower cluster. The prairie phloxes are perennial and are easily grown in Southwest gardens.

WATER-LEAF FAMILY (Hydrophyllaceae)

[Illustration: BABY BLUE-EYES PURPLE PHACELIA]

Flowers usually in curled clusters; calyx deeply 5-lobed; petals united, usually 5; stamens 5, on corolla-tube; ovary superior; styles 2.

Baby Blue-Eyes. Flannel Breeches (_Nemophila phacelioides_) forms a lovely carpet on banks and in moist woods near the prairie regions of Texas and Arkansas. The dainty flowers are about one inch broad, with 5 broadly-spreading lobes of lavender, paler at the base. The leaves are divided into 5-9 broad segments which are irregularly toothed. It is not known in cultivation, but a similar plant from California is used to cover beds in which bulbs are planted.

Purple Phacelia (_Phacelia patuliflora_) is a low, spreading annual growing on sandy prairies in the southern part of the state. “Patuliflora” means “spreading flower” and refers to the royal purple corollas which are widely spreading and nearly an inch broad. It is the handsomest phacelia among the fifteen or more species found in the state. It blooms from February to May.

Blue nama (_Nama ovatum_) is a water-leaf growing in ponds and streams of East Texas and blooming in the summer. It has lovely sky-blue flowers nearly an inch broad and spiny stems. Sand bells (_Nama hispidum_) has small, reddish-purple, bell-shaped corollas.

[Illustration: BLUE CURLS]

Blue Curls. Fiddle-Neck (_Phacelia congesta_) is also known as spider-flower, caterpillars, snail-flower, and wild heliotrope. It has curled flower clusters and lavender-blue flowers very much like those of some of the heliotropes and borages. A California borage is also called fiddle-neck. The flowers are tubular at the base with 5 broadly spreading lobes. The 5 spreading stamens extending from the flowers are responsible for the name of “spider-flower.”

The erect, unbranched stems may be seen on gravelly limestone slopes or in open woods from Central to Southwestern Texas. The large, thin leaves are finely divided and clothed with soft hairs. In woods the plants may grow 1½-2 ft. high, but on rocky slopes they are seldom more than a foot high. The flowers bloom in April and May, a long blooming season resulting from the numerous flowers which open as the curling stems unfold. It is an annual plant which does well in cultivation and makes a lovely addition to the flower garden.

Nearly a hundred phacelias are found in Western North America. The name is from the Greek meaning “cluster.” Most of them are showy plants, but few are known in cultivation.

BORAGE FAMILY (Borraginaceae)

[Illustration: SOUTHERN HELIOTROPE BINDWEED HELIOTROPE]

Leaves usually alternate; flowers often in curled clusters; sepals 5; petals 5, united; stamens 5, on corolla-tube; ovary often deeply 4-lobed; fruit a drupe or of 4 nutlets.

Southern Heliotrope (_Cochranea anchusaefolia_) grows in limestone soil from Central Texas to Florida and tropical America. It may often be found from spring to fall in the shelter of mesquite or prickly pear. The white-flowered sea-heliotrope (_Heliotropium curassavicum_) is very abundant in saline soil in South and West Texas. Plains heliotrope (_Heliotropium tenellum_) does not have curled clusters of flowers but has a few small white ones borne on short branches. It is widespread in the South-central United States.

Bindweed Heliotrope (_Heliotropium convolvulaceum_) has white flowers quite similar to those of the bindweed, about one inch broad. It is found in sandy soil in South and West Texas to California and Nebraska from spring to fall. The plant has widely branching stems, about a foot long, and the foliage is somewhat rough-hairy. The heliotropes get their name from Greek words which mean “sunturning.”

[Illustration: GOLDEN PUCCOON]

Golden Puccoon. Narrow-Leaved Puccoon (_Lithospermum linearifolium_) is another harbinger of spring on the prairies. The scattered plants may be found throughout Texas to British Columbia and Indiana. Several slender stems grow from a long, thick black root. The plant gets its name from the Greek word meaning “stone-seed” and refers to the hard nutlets of the fruit. In the narrow-leaved puccoon, the nutlets are ovoid, white, shining, and more or less pitted. The flowers have a narrow tube with 5 spreading lobes which have crinkled margins.

Orange Puccoon (_Lithospermum gmelinii_) is a striking woodland plant of the Eastern States which is widespread in East Texas. It can be easily identified by its showy yellow-orange flowers. The clustered stems, 1-1½ feet high, grow from a deep root. It blooms in April and May.

Most of the puccoons have a red root from which a dye is obtained. Some of the European forms have blue flowers and are known in cultivation.

VERBENA FAMILY (Verbenaceae)

[Illustration: LARGE-FLOWERED VERVAIN SLENDER VERVAIN]

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.

[Illustration: PLAINS VERBENA]

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.