Dense, bushy shrubs or small trees 3-8 m high; branchlets sometimes pendulous, flattened towards the apex but soon becoming almost terete; trunk usually short, dividing just above the ground level into a few main stems; bark smooth, grey to reddish brown, often producing suckers. <P>Phyllodes variable, linear to lanceolate, 8-25 cm long, 2-50 mm broad, straight or falcate, tapering gradually towards the base and apex, glabrous, often glaucous when young, mid-vein prominent with fine but distinct lateral veins; glands basal. <P>Inflorescences axillary racemes, shorter than phyllodes (rarely reduced to a solitary head), axis slightly flexuose, glabrous; flower-heads globular, deep yellow to almost orange, 25-75-flowered; peduncles slender, glabrous, 5-20 mm long; flowers 5-merous. <P>Legumes linear, 5-14 cm long, 5-6 mm broad, straight or slightly curved, surface slightly undulate, glabrous, brown, margins thickened, yellowish, slightly constricted. Seeds longitudinal in legume, obloid; funicle short, thickening into an aril.                                               <P>