Acacia delphina Maslin

Shrub 0.5–1 m tall. Bark grey. Branchlets puberulous or appressed-puberulous, glabrescent. Phyllodes rather crowded, inequilateral, ±crescent-shaped and acuminate with a conspicuous triangular gland-bearing spur on adaxial margin, sometimes obdeltate, 7–16 mm long, 3–10 mm wide, pungent, glabrous; midrib central or near abaxial margin; gland on a conspicuous angle on upper margin of phyllode, overtopped by a spinule. Inflorescences simple, 1 per axil; peduncles 1–7 mm long, glabrous; heads obloid to shortly cylindrical, densely 18–32-flowered, pale yellow or golden. Flowers 4-merous; sepals c. ¼-united, with lobes ±oblong. Pods ±moniliform, straight or shallowly curved, to 4.5 cm long, 3–4 mm wide, firmly chartaceous, brown, glabrous or subglabrous. Seeds longitudinal, oblong to elliptic, 3–4 mm long, dull, brown; aril terminal, conical.

Grows on flats (rarely on slopes) in sand or loam, in low open woodland or tall shrubland.