Plants 10-35 cm tall, with appressed, in vegetative parts only white, ± medifixed hairs 0.5-0.8 mm. Leaves 5-25 cm; stipules 10-13 mm, densely covered with appressed hairs; petiole 2-11 cm, like rachis loosely to rather densely hairy; leaflets in 4-8 pairs, elliptic, 6-25 × 4-15 mm, sparsely to loosely hairy. Racemes ovoid to cylindric, rather densely many flowered; peduncle 6-30 cm, loosely to rather densely hairy, hairs white, toward raceme increasingly black; bracts 3-7 mm, sparsely hairy and ciliate. Bracteoles absent. Calyx 7-10 mm, loosely white and predominantly black hairy; teeth 2-4 mm. Petals violet; standard narrowly oblong-elliptic, 20-25 × 6-8 mm, apex retuse or obtuse; wings 16-20 mm, limbs retuse to emarginate; keel 13-17 mm. Legumes sessile, erect, 10-13 mm, 4-4.5 mm high and ca. 4 mm wide, with a slender beak 2-3 mm; valves loosely white hairy, glabrescent to nearly glabrous with age.