Leaflets 3, 2–11(13) × 0.7–4.7(5.5) cm, ovate, obovate-elliptic or elliptic to oblong-lanceolate, usually acute but sometimes rounded or acuminate at the apex, rounded at the base, softly pubescent to velvety and with orange glands on both surfaces; venation sometimes raised beneath; petiole (0.4)1.2–3.3(4.7) cm long; rhachis (1.5)3–5(6) mm long; petiolules 1–4 mm long; stipules 0.8–2.5 cm × 2.5–7 mm, lanceolate to ovate-lanceolate, hairy outside, closely veined.
Standard yellow, flushed or veined with red or purple-brown, 6.5–9(13) × c. 5–6.5 mm, obovate, sparsely pubescent along the middle outside or glabrescent, with orange-yellow glands; wings yellow; keel greenish-yellow or white sometimes tipped with brown, glandular.
Racemes with flowering part (1.5)2–7 × 1.5–2.3 cm; peduncle (0.5)4–18(21) cm long, ferruginous hairy; pedicels c. 1–1.5 mm long; bracts soon falling, 0.7–1.4 cm long, linear, pilose.
Calyx pubescent with appressed or spreading hairs outside, pubescent within, 4.5–5.5 mm long; lobes triangular, ± acute, shorter than or ± equalling the tube.
Seeds olive or liver-coloured with purplish speckling or purple, 3.5–4.1 × 2.2–2.5 × 1.2–1.5 mm, oblong; rim aril cream, often not as long as the hilum.
Pods 1–1.7 cm × (6)7–9 mm, elliptic to oblong, covered with long ferruginous hairs and also an undercover of fine pubescence and glands.
Branches mostly erect, sometimes straggling or trailing, pubescent to densely shaggy with ferruginous hairs.
A small shrub. It grows 90-120 cm tall. The wood is soft. The flowers are yellow.
Perennial herb, often subshrubby, 0.2–2.1 m tall, branched.