Bushy, rounded, glabrous shrubs 2-3 m high, occasionally tree-like with a short trunk to 4 m high; branches grey to reddish-brown, ascending, smooth, almost terete; bark thin, greyish-brown. 

<P>Phyllodes terete, 4-8 cm long, 0.8-1 mm diam., straight or slightly curved, ascending, always very brittle and snapping easily and cleanly, finely striate with numerous rather obscure longitudinal veins, apex acute but barely pungent; glands small, near the centre of the phyllodes and usually slightly bent at this point. 

<P>Inflorescences simple and axillary mostly twin, occasionally ternate; flower-heads bright yellow, 20-30-flowered; peduncles glabrous, 5-8 mm long; flowers 5-merous. 

<P>Legumes linear, 5-7 cm long, 2-2 1/2 mm broad, straight or slightly curved not twisted, margins contracted between seeds. Seeds longitudinal in legume, obloid; funicle filiform with 2-3 folds and thickening into a conical aril.