Plant: Perennial, ± robust, ± glabrous; stem decumbent or ascending, 1-3 dm Leaves: generally compound, alternate, stipuled; 5-15 cm, odd-1-pinnate; leaflets 7-21, 4-20 mm, ovate to ± round INFLORESCENCE: raceme, axillary; flowers 4-10, not crowded, spreading Flowers: bilateral; calyx 5-lobed, glabrous; corolla red-purple with white wing tips, or cream, or white drying cream, banner 16-23 mm, recurved ± 85 degrees, keel 10-16.5 mm; 9 filaments fused, 1 free; ovary (and fruit) generally sessile, style slender, stigma minute Fruit: legume, spreading or pendent; body 25-55 mm, 10-20 mm wide, widely ± ovoid, bladdery, glabrous; stalk-like base 3.5-10 mm; chamber 1; Seeds 2-many, smooth, compressed, ± notched at attachment scar Misc: Dry, open areas, often among sagebrush, pinyon; 1500-3100 m