Shrub or small tree to 5 m high, resinous, spreading. Bark 'Minni Ritchi', red-brown. Branchlets angular towards apices, green and lenticellate between orange-brown crenulated ridges. Phyllodes oblique, ± linear, flat, (1.5–) 2–10 cm long, 0.8–3 mm wide, thinly coriaceous, with conspicuous stomata, subglabrous or more commonly with often sparse appressed ± silky hairs on nerves and margins (hairs golden on new shoots), with a prominent midvein and sometimes a subprominent vein either side; minor veins inconspicuous; upper margin broader than the lower; gland 1, basal, to 6.5 mm above pulvinus. Spikes 9–20 mm long, golden. Flowers 5-merous; calyx 0.5–0.9 mm long, dissected to 1/5–2/3 or more, golden-hairy; corolla 1.2–1.7 mm long, dissected to 1/4–5/8, glabrous. Pods mostly straight-sided to scarcely constricted between seeds, curved to circinnate, ± flat, 3–11 cm long, 7–12 mm wide, coriaceous, finely reticulately veined, sericeous when young, later ± glabrescent. Seeds ± oblique, rotund or round, flattened, depressed towards centre, brown to black, pitted; pleurogram with yellowish grey halo; areole round or oblong, closed, greyish brown.
Found mainly in sandy clay loam derived from alluvium, in a variety of habitats, usually along creeks and rivers, sometime forming thickets on coastal pindan sandplains; at elevations up to 400 metres.
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Grows mainly in sandy clay loam derived from alluvium, in a variety of habitats (see notes).
Introduced into West Africa for firewood and stock fodder. Details on utilisation are given in J.W. Turnbull (ed.), Multipurpose Australian Trees and Shrubs 206–207 (1986), J.C. Doran & J.W. Turnbull (eds), Australian Trees and Shrubs: Species for Land Rehabilitation and Farm Planting in the Tropics 230–231 (1997) and B.R. Maslin et al., Wattles of the Pilbara (2010).
Can be grown by seedlings. Seeds needs soaking.
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