Erect, rigid, glabrous, spreading shrubs 1-3 m high, the same or more across, branching from the ground; branchlets compressed or flattened and very acutely angled or winged.

<P>Phyllodes linear oblong, narrow obovate, broadly ovate-oblong oblique 1-5 cm long, 1-3.5 cm broad, thick rigid often undulate, glaucous, broad-based with the lower edge continuous and decurrent with the stem, or with a short pulvinus, 1-veined with numerous fine lateral veins, margins thickened and vein-like. Glands either basal or near middle on upper margin. 

<P>Inflorescences axillary and solitary; flower-heads globular large, deep golden yellow, c. 40-flowered; peduncles stout 1-2.5 cm long; flowers 5-merous. 

<P>Legumes stipitate flat often undulate, straight or curved, 3-5 cm long, 10-12 mm broad, coriaceous, wrinkled or marked with prominent transverse lines; margins thickened vein-like. Seeds transverse in legume; funicle long, folded under the seed then 1/2 or more encircling the seed in a double fold, thickening into a small aril.