Leaves shortly petiolate, 1-foliolate; leaflets mostly 3–8 × 1.2–3 cm, ovate-lanceolate to elliptic or sometimes ovate, pilose, often sparsely so, on both surfaces; stipules 4–8 mm long, filiform.
Standard subcircular, dull yellow, purplish-brown veined; wings exceeding the keel; keel 4–4.5 mm long, rounded about the middle, with a short rather blunt slightly incurved beak, 4–4.5 mm long.
Racemes up to 17(23) cm long, usually pedunculate, dense, many-flowered; bracts 5–7 mm long, filiform; bracteoles inserted at base of the calyx, similar.
Calyx 2–4 mm long, becoming basally truncate and deflexed against the pedicel, sparsely hirsute; lobes triangular, ± as long as the tube.
Pod sessile, 6–8 mm long, subglobose, somewhat compressed laterally, densely brown villous, 1–2-seeded.
Erect annual, 0.3–1.2 m tall, with usually numerous hirsute ascending branches.
Seeds c. 3 mm long, oblique-cordiform, wrinkled, brown.