Spreading tree 6–30 m high; d.b.h. to 1.8 m. Bark smooth, grey, often mottled. Branchlets terete except towards apices, scarcely ridged, densely whitish to grey appressed-puberulous. Young foliage-tips pale to bright yellow, velvety-pubescent. Leaves green when fresh, silvery when dried; petiole above pulvinus 1–3.5 cm long, much flattened vertically, usually with 1 small gland at base of lowest pinnae, sometimes with 1 or 2 other scattered glands; rachis (3–) 6–14 cm long, usually with 1 or 2 often contiguous hairy glands at base of each pair of pinnae, and with 1–3 interjugary glands between successive pairs of pinnae; pinnae 5–18 pairs, (3–) 4–9.5 cm long; pinnules 17–50 pairs, narrowly lanceolate, 3–10.5 mm long, 0.7–1.5 mm wide, sometimes incurved, darker and ±glabrous above, with white appressed straight hairs beneath, markedly acute. Inflorescences mostly in terminal or axillary false-panicles or rarely in axillary racemes. Heads 18–30-flowered, yellow. Pods variably but mostly only slightly constricted between seeds, 4–15.5 cm long, 6–9.5 mm wide, coriaceous, smooth, brown to black, bluish over seeds, paler at margins and between seeds, subglabrous.
Often forming extensive forests especially on slate, being most common in open eucalypt forests on rocky hillsides of steep gullies, over the saddle of ridges and on alluvial flats; at elevations up to 1,000 metres.
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Often forming extensive forests especially on slate, being most common in open eucalypt forests on rocky hillsides of steep gullies, over the saddle of ridges and on alluvial flats.
Can be grown by seedlings. Seeds needs soaking.