Spreading somewhat straggly shrub, 0.5-1 m high. Branchlets ±straight and ascending, striate-ribbed, subglaucous, glabrous, ending in hard rigid often ±spinose points. Phyllodes distant and resembling the branchlets, sometimes few, occasionally absent (seemingly dropped upon collection), ascending to erect, narrowly linear to linear-elliptic, narrowed at both ends, straight or incurved, 2-7 cm long, mostly 1-3 mm wide, ±pungent, subrigid, subglaucous, glabrous, 5-nerved in all; midrib rather prominent, ±excentric; adaxial margin 2-nerved and slightly thickened; glands not prominent, 1-3, with the lowermost 2-5 mm above phyllode base. Inflorescences 1-4-headed racemes, enclosed when very young by imbricate bracts; raceme axes 1-20 mm long, sometimes growing out, glabrous; peduncles 7-12 mm long, glabrous; heads globular, 25-40-flowered, bright golden; bracteoles absent. Flowers mostly 5-merous; sepals ±free. Pods rounded over seeds and slightly to deeply constricted between them, to 11.5 cm long, 4-6 mm wide, coriaceous, brown, glabrous. Seeds longitudinal, elliptic, 5-6 mm long, turgid, glossy, dark brown; aril 1/2-2/3 length of seed.
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