Shapely, obconic tree 4–8 (–14) m high, adolescent plants often with a conifer-like appearance. Bark ‘Minni Ritchi’, brownish red, a short, grey stocking at base of oldest stems. Branchlets not pendulous, brittle, glabrous. Phyllodes linear, ± straight, not especially rigid, flat (except terete on juvenile plants), (4–) 7–12 (–15) cm long, 1–2 (–2.5) mm wide, pungent or subpungent, glabrous or sometimes subglabrous, green to dull grey-green or subglaucous; very finely multistriate with veins close together; gland 1, ± basal. Inflorescences simple, 2–6 per axil; peduncles 5–10 mm long, glabrous or ±sericeous; spikes 1–2 cm long (dry), subdense, light golden. Flowers 5-merous; calyx c. ½ length of corolla, shortly dissected into broadly triangular lobes. Pods broadly linear, flat, normally shallowly curved, 3–10 cm long, 6–8 mm wide, coriaceous-crustaceous to ± subwoody, glabrous, resinous. Seeds longitudinal, oblong or sometimes oblong-elliptic, flattened, 7–11 mm long, brown tinged greyish; areole small, c. 1 mm long.