2.
Hesperaloe parviflora
(Torrey) J. M. Coulter, Contr. U.S. Natl. Herb. 2: 436. 1894.
Red yucca, red hesperaloe
Yucca parviflora J. Torrey in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 221. 1859; Aloe yuccaefolia A. Gray; Hesperaloe engelmannii Krauskopf; H. parviflora var. engelmannii (Krauskopf) Trelease; H. yuccaefolia (A. Gray) Engelmann
Leaf blades dark green, barely constricted along length, 5—12.5 × 0.1—0.25 dm, margins with slender threads. Panicles 1—2.5 m. Flowers: perianth narrowly tubular; tepals rosy red to salmon, 2.5—3.5 cm. Capsules 2.5—3 cm. Seeds 9—10 × 6—7 mm.
Flowering late winter--early summer. Prairies, rocky slopes, and mesquite thickets; to 600 m; Tex.; Mexico (Coahuila).
Hesperaloe parviflora is widely cultivated in arid and semiarid regions, both as roadside plantings and as landscaping elements.
