Shrub to 2.5 m tall; indumentum brown, grey-brown or black, the hairs long, spreading, basal portion coiled. Leaves: stipules 3–5 mm long; petiole 2–4 mm long; lamina very narrow-elliptic or narrow-oblong to lorate, 2.5–6 cm long, 4–9 mm wide, margin recurved to revolute, upper surface with veins raised, rarely ± smooth, often scabrous, glabrous, lower surface with dense curled and/or long hairs. Inflorescences mostly of 2 flowers, mostly sessile; pedicel 2–3 mm long, bract inserted 1–2 mm distal to base; bract and bracteoles lanceolate, 2–4 mm long. Calyx 5–6.5 mm long, tube 2.5–3.5 mm long, upper lip c. 4 mm wide. Standard 8–10.5 mm long, flare yellow; wing 3–4.5 mm wide. Pod densely hairy, sessile. Aril of seed 4.5–5 mm long, not expanded distally, hilum c. 4 mm long.