Shrub or tree 1.5–6 m high, obconic, often gnarled. Branchlets glabrous. Phyllodes normally widely spreading, narrowly elliptic to linear-elliptic, commonly shallowly falcate, 4–13 cm long, 2–7 mm wide, acute with a straight to hooked tip, coriaceous, ± shiny, glabrous, with numerous closely parallel veins; central vein the most evident; marginal veins normally red-or brown-resinous. Inflorescences simple; peduncles 2–7 mm long, puberulous to glabrous; heads broadly ellipsoid, obloid or cylindrical, 6–20 mm long, 4–6 mm diam., golden. Flowers 5-merous, resinous; sepals united to 1/3. Pods narrowly oblong, flat but often appearing ?tetragonous by development of marginal wings perpendicular to face, to 12 cm long, mostly 7–12 mm wide, ± woody; faces densely red resin-haired. Seeds longitudinal, broadly elliptic, 8–9.5 mm long, dull, dark brown; aril terminal, turbinate.
Grows commonly on granitic and lateritic hills and outcrops, in open shrubland, especially with members of the 'Acacia aneura group'.