Dense, rounded, spreading shrubs or small trees 2-6 m high with bushy umbrageous canopies, a straight trunk often for about 1 m above ground level before branching, or with several small stems from base; branchlets pubescent, slightly angular becoming terete; bark hard, rough, fissured and dark grey. 

<P>Phyllodes linear, oblong-lanceolate, 3-8 cm long, 2-10 mm broad, flat, thick, rigid, striate, silvery or somewhat golden pubescent when young, becoming glabrous with age, numerous fine parallel more or less prominent veins, apex acute or obtuse usually with a straight or curved pungent point; glands basal. 

<P>Inflorescences simple and axillary, solitary or mostly twin, sessile or on very short pubescent peduncles; flower-heads more or less globular, 10-15-flowered; flowers 5-merous. 

<P>Legumes linear, somewhat moniliform, 5-17 cm long, 7-10 mm broad, much-curved spirally twisted, coriaceous to woody, hoary. Seeds longitudinal in legume; funicle short, yellowish-orange, usually folded beneath the seed ending in a broad fleshy aril.