Tall shrubs or small shapely trees to 8 m high, branching near ground level or up to one metre above; branches reddish-brown, terete; bark characteristically thin, curly, reddish, forming numerous small tight curls along the stems.

<P>Phyllodes 8-20 cm long, 1-2 mm diam., usually curved, rigid, terete, slightly pubescent, numerous fine longitudinal parallel veins only visible under a lens, apex tapering into a pungent point; glands basal, small. 

<P>Inflorescences simple and axillary, 1-2 per axil; spikes moderately dense, interrupted, pale yellow, 1-2 cm long; peduncles puberulous, 10-15 mm long; flowers 5-merous (sepals united). 

<P>Legumes broad-linear, 5-10 cm long, 6-7 mm broad, flat, thick, straight or slightly curved, margins thickened, viscid. Seeds longitudinal or oblique; funicle filiform, with one or two folds below the seeds and thickening into a small aril.