Tree to 7.5 (–10) m high, or shrub to c. 3–6 m. Bark rough, longitudinally fissured and/or fibrous, reddish, greyish brown or black. Branchlets terete but angular or slightly flattened towards apices, tomentose or pubescent, often later glabrous. Juvenile phyllodes elliptic or obovate, pubescent or tomentose. Mature phyllodes elliptic or lanceolate, often falcate, (2–) 3–18 cm long, 5–33 mm wide, l: w ratio = 2.5–20, coriaceous, glabrous or pubescent; multistriate, the minor veins parallel, not anastomosing and 6–12 per mm, with 3 (rarely 5) veins more prominent than the rest and neither decurrent with each other nor with margin at base; gland inconspicuous, 1–2 mm above pulvinus. Inflorescences simple or occasionally rudimentary racemes c. 0.5 mm long; spikes 2–6.5 cm long, golden. Flowers 5-merous; calyx 0.5–1.2 mm long, dissected for ⅓–⅔, papillose or non-papillose, pubescent or villous; corolla 1–1.8 mm long, dissected ½–⅔ of length, with papillose apex; ovary densely villous. Pods terete or subterete, 4.5–10 (–17) cm long, 2–5 mm wide, obscurely longitudinally striate, glabrous or puberulous and papillose. Seeds longitudinal, ±oblong-or compressed-elliptic, 3–4.5 mm long, brown; areole mostly paler than rest of seed.
Grows in coastal and subcoastal areas, often on sand-stone, in well-drained sandy soils in open eucalypt scrub-woodland or grassland. Subspecies gilbertense is also found in seasonally water-logged soils.
Can be grown by seedlings. Seeds needs soaking.
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