Plant: Perennial, glabrous; stems clustered, ascending, 3-5 dm Leaves: generally odd-1-pinnate; leaflets 5-7, 10-16 mm, obovate to oblong INFLORESCENCE: spike, (minus corollas) ± 8-12 mm wide, oblong or narrowly oblong, initially compact, exposing axis in fruit Flowers: calyx 3.5-4.5 mm, tube recessed or slit on upper side, becoming leathery, puberulent, 10-ribbed; petals 5-7 cm, purple; stamens 5, filaments fused; ovules 2 Fruit: legume, indehiscent, included in or slightly exserted from calyx; Seed 1,often ± reniform, generally hard, smooth Misc: Juniper/sagebrush scrub, slopes, bluffs; 1200-2000 m.; May-Jun