Leaves 3-foliolate; leaflets mostly 4–9 × 2–3.5 cm, elliptic or obovate-elliptic, appressed puberulous beneath; petiole 3–11 cm long, slender; stipules filiform or lacking.
Standard broadly obovate-elliptic, bright yellow; wings usually as long as the keel; keel (1.3)1.5–2 cm long, rounded, with a slightly incurved twisted beak.
Racemes sublaxly 8–30-flowered; bracts c. 3–9 mm long, linear, caducous; bracteoles near middle of pedicel or above, 1–6 mm long, filiform.
Calyx 8–11 mm long, appressed puberulous; lobes narrowly triangular, slightly acuminate, lanate along margins inside.
Pod shortly stipitate, c. 4.5–6 × 1–1.3 cm, oblong-clavate, puberulous, becoming venose, c. 16–30-seeded.
Seeds c. 4 mm long, oblique-cordiform, smooth, dull ochre.
Shrub 1–3.5 m tall; young branches puberulous.