Acacia dilatata Benth.

Sprawling or compact multistemmed shrub to 0.7 m tall. Branchlets usually puberulous. Stipules 2–4 mm long, rigid, commonly ±spinose. Phyllodes dimidiate, with adaxial margin conspicuously rounded with its proximal edge frequently ±parallel to branchlet, normally 10–20 mm long, (5–) 7–10 (–15) mm wide, slightly undulate, short-or long-acuminate, pungent, coriaceous, dark green or yellow-green, usually puberulous; midrib very close to abaxial margin; secondary nerves running into adaxial margin. Inflorescences simple; 1 per axil; peduncles 5–10 mm long, usually puberulous; heads globular to obloid, subdensely 15–25-flowered, golden. Flowers 5-merous; sepals shortly united, with lobes linear-triangular; petals striate. Pods curved, terete, to c. 5.5 cm long, 4–5.5 mm diam., crustaceous, dark red-brown, longitudinally striate, usually finely puberulous. Seeds longitudinal, oblong, 4.8–5.5 mm long, brown; aril terminal, conical.

Grows in often lateritic or rocky sand, in heath or low shrubland with scattered Eucalyptus and Banksia.