Angel's Trumpets

Acleisanthes longiflora A. Gray, Am. Jour. Sci. II. 15: 261
1853.
Plants decumbent or ascending, from a slender or thick woody root, much branched, the branches slender, 2—5 dm. long, cinereo-puberulent or. rarely short-hirtellous, glabrate below; leaves of a pair subequal, the petioles stout or slender, 3-8 mm. long, the blades broadly deltoid-ovate or rhombic-ovate to deltoid, lanceolate, or linear-lanceolate, 1.5-4.5 cm. long, 0.3-3.5 cm. wide, truncate to acute at the base and decurrent, acuminate or rarely acute to long-attenuate at the apex, thick and succulent, glaucous, often crispate, the margins then undulate or when dry apparently coarsely dentate, sparsely cinereo-puberulent when young or rarely short-puberulent, soon glabrate; flowers axillary, solitary, sessile or subsessile, the bracts linear-subulate, half as long as the fruit or shorter, the perianth 9—17 cm. long, white tinged with purple, sparsely and minutely puberulent outside, the tube very slender, 1.5-2 mm. in diameter, the limb 1.5-2 cm. broad; stamens short-exserted ; fruit narrowly oblong, 5-6 mm. long, truncate at both ends, 5-angulate, puberulent or rarely short-hirtellous, often
glabrate.
Type locality: Valley of the Limpio, western Texas.
Distribution: In dry, often alkaline soil, southern and western Texas to Riverside County, California, southward to Chihuahua and Coahuila.