Slender, straggly, wiry, open shrubs or small trees 2-4 m high with pendulous branches, trunk slender, with smooth grey-brown bark; branchlets reddish, angular, flexuous often in a regular zig-zag line. 

<P>Phyllodes linear, oblanceolate, 5-15 cm long, 4-12 mm broad, flat, coriaceous, falcate, generally spreading but sometimes reflexed, glabrous, mid-vein prominent, marginal veins similar, lateral veins rather obscure, apex obtuse with a very short mucro, tapered towards the base into a somewhat twisted wrinkled pulvinus; glands small near the base. 

<P>Inflorescences axillary, solitary or in flexuous racemes owing to the reduction of phyllodes; flower-heads globular, golden yellow, c. 50-flowered; peduncles solitary, 10-20 mm long; flowers 5-merous. 

<P>Legumes linear, 10-17 cm long, 5-6 mm broad, usually slightly curved, flattish but raised over the seeds, apex acute; margins vein-like, slightly constricted between the seeds. Seeds longitudinal in legume; funicle long, reddish-brown in a double fold around the seed, tapering into a conspicuous oblique whitish aril.