Leaves all 3-foliolate or uppermost occasionally 1-foliolate; leaflets 8–35 × 3–10 mm, oblanceolate to oblong-obovate or obovate, pilose beneath and usually also above; petiole 3–15 mm long, channelled or narrowly winged; stipules 0.
Standard oblong-obovate, clear yellow, sometimes finely reddish lined, subdensely pilose outside; wings as long as the keel; keel 9–11 mm long, angular, with a long narrow twisted beak, conspicuously incurved at the tip.
Racemes (1.5)3–10(17) cm long, densely many-flowered; bracts 3–6 mm long, linear-lanceolate to lanceolate-caudate, exceeding the pedicel; bracteoles on the pedicel, setaceous.
Calyx 5–7 mm long, pilose; lobes attenuate-triangular, 2–3 times as long as the tube.
Seeds 2 mm long, oblique-cordiform, smooth, with a slightly swollen rim-aril.
Pod subsessile, 5–6 × 3.5–5 mm, ovoid-globose, pubescent, 1–2-seeded.