Shrub or tree 4–6 m high, apparently freely suckering following disturbance. Bark and branches pruinose. Branchlets angled at apices, dark reddish, normally lightly pruinose, glabrous. Phyllodes on raised stem-projections, slightly inequilateral, variable in shape and size, narrowly oblong-elliptic to oblanceolate, sometimes obovate, 2–6 cm long, (5–) 8–20 mm wide, l: w = (2–) 3–6, ± thinly coriaceous, grey-green to glaucous, glabrous; midrib and margins prominent; lateral nerves obscure; gland 2–4 mm above pulvinus otherwise as in A. kettlewelliae . Inflorescences racemose; raceme axes 1.5–10 cm long, glabrous and ± flexuose; peduncles 2–4 mm long, glabrous; heads globular, 10–15-flowered, bright lemon yellow. Flowers 5-merous; sepals united; ovary tomentulose. Pods narrowly oblong, 2.5–4.5 cm long, 7–11 mm wide, l: w = (2–) 3–6, firmly chartaceous, purplish brown, lightly pruinose, glabrous, dehiscing unilaterally. Seeds longitudinal, ovate to elliptic, 3.5–4 mm long, compressed, ±dull, black, arillate.
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