Spreading shrub 0.7-1 m high. Branchlets glabrous; epidermis white, puncticulate and exfoliating with age. Stipules caducous. Phyllodes sessile, patent, linear-triangular, 8-15 mm long, 1.5-2 mm wide, pungent, rigid, green, glabrous, 1-nerved, commonly with an obscure second nerve parallel to midrib; gland 1-3 mm above the base. Inflorescences rudimentary normally 1-headed racemes with axes 0.5-1 mm long, commonly growing out; peduncles c. 1 cm long, glabrous; heads globular, 15-20-flowered, golden; bracteoles absent. Flowers 5-merous; sepals c. 1/2-4/5-united; petals ±nerveless. Pods ±moniliform, normally shallowly arcuate, to 7.5 cm long, 3.5-4 mm wide, ±thinly coriaceous, reddish brown, finely longitudinally reticulate, glabrous. Seeds longitudinal, oblong or elliptic to obovate, 3-4 mm long, black with cream mottlings; aril conical, terminal.
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