Thin-leaved wattle

Dense, glabrous shrub or tree 2–4 m high. Branchlets flexuose. Stipules caducous, obvious on new shoots, 2–6 mm long, scarious, light brown. Phyllodes terete to subterete, sometimes drying flat, 7–20 cm long, 1–1.5 mm wide, acute and commonly slightly incurved at apex, not rigid, fleshy, smooth, longitudinally sulcate when dry, obscurely 4-nerved, 1-nerved per face when flat; gland 6–16 mm above pulvinus. Inflorescences 3–6-headed racemes, enclosed when young by conspicuous, imbricate, scarious, striate bracts; raceme axes 1–4 cm long, commonly growing out during anthesis; peduncles 5–13 mm long; heads globular, 5–6 mm diam., 20–30-flowered, golden. Flowers 5-merous; sepals united into a truncate calyx. Pods submoniliform, to 16 cm long, 4–5 mm wide, thinly coriaceous-crustaceous, finely longitudinally reticulate. Seeds longitudinal, 5.5–7 mm long, elliptic to narrowly elliptic or narrowly oblong, shiny, black; aril drying yellow-brown.