Herbs, 3-17 cm tall, acaulescent, from a multiheaded caudex, densely cinereous pubescent. Stipules ovate, membranous, densely sericeous with long trichomes, free from petiole, basally connate. Leaves 2-12 cm, 9-19-foliolate; rachis with small glands; leaflet blades oblong to oblong-lanceolate, 3-10 × 1.5-3 mm, sericeous with spreading long trichomes. Racemes compact, 6-10-flowered; peduncle 4-15 cm, equaling to much longer than leaves, with dense white and black incurved trichomes; bracts linear, slightly shorter than calyx tube, with sparse white and black trichomes. Calyx 4-6 mm, with dense black or white trichomes intermixed with black long trichomes; lobes lanceolate, shorter than tube. Corolla purple, bluish purple, or seldom white; standard 5-9 × ca. 5 mm, lamina orbicular, apex emarginate to rounded; wings ca. 7 mm, lamina obovate to oblong, apex emarginate; keel ca. 6 mm, beak subtriangular, very short. Legume shortly stipitate; body ovoid to oblong-ovoid, 5-7 × 4-6 mm, inflated, membranous, 1-locular, with spreading dense white long and black short trichomes, septum absent, adaxial suture emarginate, beak erect. Fl. and fr. Jun-Sep.