Plant: Annual; hairs ± appressed, ± curved; stem prostrate or ascending, 2-30 cm Leaves: generally compound, alternate, stipuled, 1-4 cm; odd-1-pinnate; leaflets 7-15, 2-8 mm, ± oblong, tips generally notched; stipules membranous, sometimes fused around stem at stem base INFLORESCENCE: raceme, axillary; flowers 1-6, ± spreading Flowers: bilateral; calyx 5-lobed; petals ± white, banner outside wings in bud 4.7-7 mm, recurved ± 45 degrees, keel 4.3-5.8 mm; 9 filaments fused, 1 free; ovary (and fruit) generally sessile, style slender, stigma minute Fruit: legume, 12-30 mm, 2-3 mm wide, gently curved, ± 3-sided, pale brown, thin-walled but not bladdery, quickly deciduous; chambers 2; Seeds 2-many, smooth, compressed, ± notched at attachment scar Misc: Sandy or gravelly areas; 600-1500 m.; Apr-May