Shrub or tree to 4 m high. Branchlets terete, sparsely to densely pubescent-cobwebbed. Phyllodes obliquely ovate-rhomboidal, asymmetrical, flat, 1.5–3.4 cm long, 9–25 mm wide, with thickened margins, with a glanduliferous acuminate and pungent apex, coriaceous, sparsely to moderately pubescent, with 3–5 prominent longitudinal veins; minor veins strongly reticulate; gland on margin 1.6–5 mm above pulvinus, prominent. Spikes borne singly or in pairs, 10–21 mm long, 4–5.5 mm wide, golden. Flowers 5-merous; calyx 0.5–1.1 mm long, dissected for ⅓–½ its length, ciliolate at apices; corolla 1.1–1.8 mm long, resinous, dissected for ⅓–½ its length, glabrous, with apices thickened, incurved and often cucullate; ovary densely pubescent. Pods linear, moniliform, ± straight, 6.5–10.5 cm long, chartaceous, pubescent. Seeds longitudinal, 5–7 mm long; funicle-aril turbinate.
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