Spreading shrub to 1.5 m high. Branchlets with indumentum of scattered loosely appressed hairs. Phyllodes crowded, sometimes subverticillate, on short stem-projections, ascending to erect, linear, ± straight, flat to compressed, 8–16 mm long, 0.6–0.8 mm wide, narrowed into a longish curved mucro, with sparse long ± appressed hairs, glabrescent; midrib absent or very obscure; gland 0–3 mm from base; pulvinus c. 0.5 mm long. Heads solitary, axillary, 24–30-flowered, golden yellow; peduncles 8–10 mm long, glabrous, occasionally with 1 or 2 bracts below head. Flowers 5-merous; sepals united for c. ⅓ of their length, ciliate; corolla c. 2 mm long, united to about middle, with lobes obovate, glabrous; stamens c. 5 mm long; ovary glabrous. Pods similar to those of A. conferta, to 4.5 cm long, 10–14 (–17) mm wide; valves rather membranous, somewhat glaucous, convex over seeds. Mature seeds not seen, transverse.
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