Shrub or tree 2–3 m high, pubescent when young. Branchlets angular and resinous at extremities, usually glabrous. Phyllodes inequilaterally narrowly elliptic, straight or shallowly falcately recurved, 6.5–12.5 cm long, (1.5–) 2–3 cm wide, usually glabrous, resinous when young; longitudinal veins numerous (8–12 (–14) per mm), fine, close, parallel and not anastomosing, 3–5 more prominent than the rest; pulvinus 5–10 mm long. Inflorescences initiated synchronously with phyllodes on new shoots, 1–4 per axil, rarely in short racemes 0.5–10 mm long; peduncles 3–5 mm long, densely hairy; basal bract brown, caducous; spikes 1.5–3.5 cm long, golden. Flowers 5‑merous; sepals free to ¼-united; ovary often absent, densely hairy. Pods linear-compressed, to 8 cm long, 3 mm wide, coriaceous, obscurely longitudinally ribbed, glabrous. Seeds longitudinal, oblong, 3–4 mm long, glossy, dark brown but yellow at centre; funicle-aril folded, creamy white.