Shrubs to 1 m tall. Bark greenish brown to grayish brown. Leaves digitate, 4-foliolate; petiole 5-10 mm, caducous or per­sistent; leaflet blades obovate, 1-2.5 × 0.4-1.2 cm, glabrous, apex obtuse to emarginate. Flowers solitary. Pedicel 0.8-1.9 cm, articulate basally to apically. Calyx tube purplish red, tubu­lar, 7-9 mm. Corolla yellow, purplish red, or pinkish, later red­dish, 2-2.5 cm; standard oblong-obovate, apex emarginate; wings oblong-linear, claw slightly shorter than limb, auricle shortly dentiform; keel with claw equal to limb, auricle incon­spicuous. Ovary glabrous. Legume cylindric, 3-6 cm, apex acu­minate. Fl. May-Jun, fr. Jun-Jul. 2n = 16*.

● Slopes, valleys; 200-2100 m. Anhui, S Gansu, Hebei, Heilong­jiang, Henan, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi, N Sichuan.