Shrubs 40-50 cm tall. Old branches grayish brown; branchlets reddish brown, sparsely villous. Leaves pinnate, 8-12-foliolate; petiole and rachis 2.5-3.5 cm on short branchlets, 3.5-4.5 cm on long branchlets, persistent, villous when young; leaflet blades oblong, narrowly oblong, or obovate-oblong, 6-8 × 3-4 mm, abaxially pilose, apex obtuse to acute. Flowers solitary. Pedicel 2-3 mm. Calyx tube tubular, 1-1.2 cm, pubescent. Corolla yellow; standard obovate, ca. 2.5 cm, apex emarginate; wings as long as standard, claw ca. 3/5 as long as limb, auricle ca. 1/2 as long as claw; keel ca. 2.1 cm, claw longer than limb. Ovary white pubescent. Legume cylindric, 1.5-2 cm, outside densely pubescent to glabrescent, inside tomentose. Fl. Jun, fr. Jun-Jul.