Prickly, rigid, straggling, spreading shrubs 2-4 m high; branchlets almost terete, downy pubescent becoming glabrous with age; bark grey-brown, slightly fissured; stipules short, subulate, spiny. <P>Phyllodes narrow-lanceolate, 2-4 cm long, 2-5 mm broad, flat, rigid, divaricate, sessile, striate, glabrous, veins 3-4 prominent, apex tapering into a fine pungent point. <P>Inflorescences simple, 1-3 per axil; spikes sparse, interrupted to moderately dense, golden yellow; receptacles and peduncles finely pubescent, 2-3 cm long; flowers 4-merous. <P>Legumes slender, sub-cylindrical, 4-7 cm long, 3-4 mm. broad, acute at both ends, coriaceous, brown, sprinkled with fine whitish hairs. Seeds longitudinal in legume; funicle short, whitish, folded once or twice below a cup-shaped aril.