Plant: perennial herb; 4-9 dm tall, glabrous

Leaves: oblong-linear to linear, the lower ones 3-7 cm long, 4-9 mm wide, the upper ones 3-7 cm long, 1-2 mm wide

INFLORESCENCE: a terminal, compound cyme

Flowers: calyx lobes ovate to linear, 2-7 mm long; corolla tube 13-19 mm long, broadest below the apex, only slightly constricted at the orifice, the lobes 5-10 mm long

Fruit: terete, 2-10 cm long. SEEDS cylindrical, corky, 8-11 mm long, 1.5-2.5 mm broad

Misc: Sandy deserts; 1200-1850 m (4000-6000 ft); May-Jul

REFERENCES: McLaughlin, Steven, P. 1994. Apocynaceae. J. Ariz. - Nev. Acad. Sci. Volume 27, 164-168.