Multi-stemmed, rounded or obconic shrub 1–4 m high, rarely a single-stemmed tree 4 m high. Branchlets yellow, resin-ribbed at extremities, sericeous between the ribs, glabrescent. Phyllodes erect, terete to flat and linear, straight to shallowly curved or sometimes shallowly sinuous, 8–13 cm long, 0.8–1.4 mm diam. (terete), to 3 mm wide when flat, curved to subuncinate and hard but not pungent at apex, not rigid, drying ± khaki green, fresh phyllodes emit either an aromatic (smelling of Friars Balsam) or unpleasant odour when crushed, with c. 16 ± close, slightly raised resinous veins, sparsely appressed-hairy between veins (superficially appearing glabrous). Inflorescences simple, 1 or 2 per axil; peduncles 4–10 mm long, glabrous or sericeous; heads subglobular to obloid, 20–30-flowered. Flowers 5-merous; sepals free. Pods (submature) pendulous, submoniliform, terete to subterete, straight to shallowly curved, (5–) 8.5–13 cm long, 2–4 mm diam., coriaceous to subwoody, strongly longitudinally nerved, glabrous or silvery appressed-hairy between the nerves, resinous. Seeds (submature) longitudinal, elliptic-linear, c. 5 mm long, dull, brown; aril terminal.
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