Openly crowned, glabrous shrub 2–3 m tall. Branchlets finely ribbed. Phyllodes subdistant, variable, narrowly linear to filiform or oblanceolate to narrowly oblanceolate, straight or sometimes shallowly curved, subterete to quadrangular when filiform, 6–21 cm long, (1–) 2–5 (–12) mm wide, uncinate to subuncinate or (in broad phyllodes) excentrically rostellate, dark green; midrib ±prominent; lateral nerves obscure; gland mostly 3–10 mm above pulvinus; occasionally a few phyllodes with 2 glands. Inflorescences mostly 4–7-headed racemes; raceme axes (5–) 10–42 (–60) mm long, glabrous or appressed-puberulous; peduncles (2–) 4–6 (–9) mm long, ±glabrous or sparsely to densely appressed-puberulous with white to pale golden hairs; heads globular, 5.5–7 mm diam., 23–37-flowered, ±golden. Flowers 5-merous; sepals ¾–⅚-united. Pods linear, scarcely constricted between seeds, to 10 cm long, 4–5 mm wide, firmly chartaceous to thinly coriaceous. Seeds longitudinal, oblong-elliptic, 4–5 mm long; funicle filiform, ¾ to entirely encircling seed in a single fold, red-brown; aril clavate.
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