Aromatic glabrous shrub or tree usually 3-10 m high. Branchlets finely ribbed, resinous when young. Phyllodes linear to linear-elliptic, straight to ±shallowly incurved, usually 9-15 cm long, 3-8 mm wide, acute, sometimes subuncinate, thinly coriaceous, 2-or sometimes 3-nerved per face with the central nerve the most pronounced, with secondary nerves sparingly longitudinally anastomosing; gland 0-1 mm above pulvinus. Inflorescences 2-headed racemes; raceme axes mostly 2-6 mm long, resinous, normally terminated by a dormant bud; peduncles 8-15 mm long, glabrous, resinous; heads globular, 7-12 mm diam., 24-27-flowered, white to cream. Flowers 4-merous, resinous; sepals 3/4-united, with lobes triangular. Pods linear, to 11 cm long, 5-5.5 mm wide, thinly coriaceous-crustaceous. Seeds longitudinal, oblong, 5.5-6 mm long, shiny, dark brown; aril white.