Shrubs to 2 m tall. Branches brown, yellowish gray, or dark grayish green. Leaves digitate, 4-foliolate; petiole 2-10 mm and persistent on long branchlets, caducous on short branchlets; leaflet blades obovate-oblanceolate, 6-10 × 3-5 mm, glabrous or sparsely pilose, apex rounded to emarginate. Flowers solitary or 2 in a fascicle. Pedicel 0.9-2.1 cm, articulate apically. Calyx tube tubular-campanulate, 6-8 mm. Corolla yellow, 2-2.2 cm; standard suborbicular, ca. 1.6 cm wide, claw ca. 5 mm; wing with claw ca. 1/2 as long as limb, auricle 1/4-1/3 as long as claw, apex emarginate; keel ca. 2.2 cm, claw shorter than limb, auricle inconspicuous. Ovary glabrous. Legume cylindric, 2-3 cm. Fl. May-Jun, fr. Jul. 2n = 32.