Small, diffuse, rounded, bushy shrubs 1-3 m high with spreading branches often the same as height or more across, or tall erect with a number of stems ascending from the base; branches glabrous, slightly angular, smooth, soon becoming terete; bark reddish-brown, dark grey on mature stems.<P>Phyllodes linear-oblong or linear lanceolate, oblique, 2-5 cm long, 5-10 mm broad, straight or curved, slightly pubescent when young, soon glabrous, mid-vein prominent or sometimes rather obscure, lateral veins few or almost absent, apex obtuse or notched, with a small recurved mucro; glands small, situated well below the middle of the phyllode on the upper margin. Stipules present or absent at the base of the phyllode, small and setaceous. <P>Inflorescences simple and axillary, usually twin or in clusters of 3 or 4; flower-heads globular, bright yellow, 20-30-flowered; peduncles slender, 5-12 mm long, usually turning blackish upon drying; flowers 5-merous. <P>Legumes linear, curved, 3-6 cm long, 3-5 mm broad, biconvex, dark brown, apex usually acute; margins thickened, slightly constricted. Seeds longitudinal in legume; funicle slender, short, aril whitish, large, conical.