Shrub to 4 m high, viscid. Bark 'Minni Ritchi' type, peeling in strips, grey, red-brown to blackish. Upper branchlets slightly angular, otherwise terete, densely appressed-puberulous and with broad irregular bands of resinous tissue. Phyllodes narrowly oblong to elliptic or oblanceolate, undulate or spirally twisted, (3.5–) 5–12.5 cm long, (4–) 6–30 mm wide, narrowed towards base, obtuse to retuse with a dark fine mucro to 3 mm long at apex, minutely tuberculate, hairy mostly on 6–8 longitudinal veins and margins, with prominent midvein and 2–4 subprominent nerves; minor veins 2 per mm, coarsely reticulate; gland 1, basal, to 6 mm above pulvinus. Spikes 1 or 2 in axils, 1.5–3.5 cm long, yellow. Flowers 5-merous, longitudinally striate; calyx 0.6–1.2 mm long, dissected to ½ of length, glabrous; corolla 1.4–2 mm long, dissected to ½–⅔ of length, glabrous; ovary glabrous or slightly hairy. Pods narrowly oblong, sometimes slightly constricted between seeds, ±septate, curved apiculate, (1.8–) 2.5–7 cm long, 5–8 mm wide, thinly coriaceous, reticulately nerved, with fine hyaline hairs to 1.2 mm long or subglabrous. Seeds longitudinal, elliptic, turgid, 4.5–5.7 mm long, dark brown; areole orbicular, small, closed, often paler than rest of seed and surrounded by a pale halo.
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