Shrub or tree 1–6 m high. Branchlets angular apically, later ± terete with low ridges, glabrous except commonly with minute resin-hairs. Phyllodes sessile, patent to inclined, linear to linear-lanceolate, straight to incurved, 1–4 cm long, 1–3 mm wide, coarsely pungent, acute, mucronate, ± rigid-coriaceous, glabrous, with 2 or 3 raised distant main veins and rare anastomoses. Inflorescences simple; peduncles 7–18 mm long, glabrous except for resin-hairs; heads globular, 3.5–5.5 mm diam., 24–45-flowered, golden. Flowers 5-merous; sepals ½–¾-united. Pods linear, slightly raised over seeds, straight or slightly curved, to 12 cm long, 2–4 mm wide, coriaceous, glabrous. Seeds longitudinal, oblong, 3.5–5.5 mm long, dark brown or black; aril apical.
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