Shrub 0.6–2 m high. Branchlets glabrous, sometimes appressed-puberulous. Phyllodes ascending to erect, ± straight, usually hexagonal-terete (fresh), often slightly flattened and furrowed between nerves when dry, usually 15–40 mm long and 1–1.5 mm wide, subulate-pungent, rigid, glaucous, green when young, glabrous, 7-veined with the 2 adaxial veins coalescing near gland 5–15 mm above base. Inflorescences simple; peduncles usually 4–7 mm long, glabrous; basal bract, rostriform, caducous; heads globular, usually golden and 3.5–4 mm diam., usually 13–18-flowered. Flowers 5-merous; sepals free. Pods linear to narrowly oblong, usually to 4 cm long, 2–4 mm wide, slightly undulate, firmly chartaceous, glabrous. Seeds longitudinal, oblong-elliptic to ovate, 2.5–3 mm long, shiny, dark brown to black; aril subterminal.
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