Multistemmed shrub 1–2 m high. Branchlets red-brown, glabrous. Phyllodes on raised stem-projections, ascending to erect, oblanceolate to narrowly oblanceolate, 3–6 cm long, 9–14 mm wide, obtuse, thick, coriaceous, glabrous; midrib prominent, commonly ±excentric; marginal veins prominent; lateral veins obscure or absent; glands 1–3, ±not exserted, with the lowermost 0–5 mm above pulvinus. Inflorescences racemose; raceme axes 1–2.5 cm long, glabrous; peduncles 1.5–3 mm long, glabrous, subglabrous when young; heads globular, 15–24-flowered, yellow; bracteoles dark brown, prominent in buds. Flowers 5-merous; sepals ±free. Pods linear to narrowly oblong, to 8 cm long, 5–8 mm wide, firmly chartaceous, dark brown to black, glabrous. Seeds longitudinal, oblong-elliptic, 4–4.5 mm long, dull or slightly shiny, black; funicle partially or wholly encircling seed in a single fold, reddish; aril clavate.
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