Plant: Subshrub; 1-4 dm tall Leaves: opposite, puberulent, broadly ovate to elliptic, 15-30 mm long, 4-20 mm broad Flowers: white, showy, vespertine; axillary; corolla funnelform; calyx lobes linear-lanceolate, subequal, 3-7 mm long; corolla hairy externally, 35-75 mm long, the tube 10-25 mm long, the throat 10-25 mm long, the lobes ovate, 10-25 mm long; stamens borne at the base of the throat Fruit: pair of follicles, 5-13 cm long; SEEDS minutely reddish puberulent, flat, with the margins folded in forming a ventral groove, the tuft of hairs copper-colored Misc: Rocky slopes and plains in desert grassland, often on limestone; 1150-1750 m (3700-5800 ft); Jun-Aug REFERENCES: McLaughlin, Steven, P. 1994. Apocynaceae. J. Ariz. – Nev. Acad. Sci. Volume 27, 164-168.