Leaves 3-foliolate; leaflets mostly 3–7.5 × 0.8–3.5 cm, oblanceolate-oblong, oblong-elliptic or obovate, silky pubescent at least beneath; petiole usually shorter than leaflets; stipules mostly 8–25 mm long, oblong-falcate, caudate, very unequal-sided.
Standard subcircular, clear yellow, fading orange-red, glabrous outside; wings broad, exceeding the keel; keel (1.8)2.1–2.4(2.6) cm long, abruptly rounded in the lower half, with a relatively short straight blunt beak, lanate towards the upper edge.
Calyx 1.1–1.5(1.8) cm long, brownish spreading tomentose; upper and lateral lobes coherent, narrowly triangular, ± twice as long as the tube.
Pod 2.8–4.5 × 1.2–2 cm, subsessile, broadly cylindrical, with a dense shaggy tomentum, mostly 16–18-seeded.
Racemes terminal, laxly few–many-flowered; bracts 6–12 mm long, ovate to obovate, acuminate, caducous.
A herb or shrub. It grows 3 m tall. The leaves are alternate and have 3 leaflets.
Bushy herb or shrub, 1–3 m tall, with numerous densely hairy branches above.
Seeds 4.5–5 mm long, oblong-reniform, granulate, orange-yellow.