Herbs, perennial, 30-40[-150] cm tall. Stems erect. Stipules lanceolate, 1-1.2 cm, basally connate. Leaves 10-15 cm, 9-13-foliolate; leaflet blades ovate-elliptic to ovate-orbicular, 1.2-1.5[-3.5] × 1-1.3[-2] cm, abaxially with appressed trichomes, adaxially glabrous. Racemes lax, with many flowers, distinctly longer than leaves; bracts lanceolate, slightly shorter than pedicel; peduncle longer than leaves. Pedicel 3-4 mm. Calyx shortly campanulate, 4-5 mm, pubescent; teeth subulate to triangular at base, slightly shorter than tube. Corolla yellow; standard long elliptic, 1.4-1.5 cm; wings ± as long as standard; keel ca. 2 mm longer than standard. Ovary pubescent. Legume divided into 2 or 3(or 4) articles; articles globose-ellipsoid, 5-6 mm in diam., compressed, pubescent, margin narrow and entire. Fl. Jul-Aug, fr. Aug-Sep.
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