Tree to 6 m tall. Branchlets terete with felty covering of short hairs, glabrescent. Phyllodes ovate, falcate, 9–17.5 cm long, 1.2–4 cm wide, with short sparse weak spreading hairs, sometimes confined to base; longitudinal nerves 2 or 3 (–4), prominent, only one reaching apex, all running into lower margin at base, with oblique secondary nerves forming a reticulum; glands 2–4 (–5) on upper margin; pulvinus 5–10 mm long. Heads in fascicles of 4–6 heads, with up to 7 fascicles along indeterminate axes in upper axils, c. 30-flowered, creamy to golden yellow; peduncles 12–17 (–23) mm long, with spreading hairs. Flowers 5-merous; sepals free, c. 1 mm long, with spreading hairs in upper half; corolla c. 1.6 mm long, lobed to about middle, with spreading hairs on lobes; stamens c. 3.5 mm long; ovary glabrous. Pods to 11 cm long, 28–36 mm wide; valves woody, glabrous, reticulately nerved; marginal wing 2.5–3.5 mm wide. Seeds transverse, 8–8.5 mm long, 2.5–3.5 mm wide, 3–3.5 mm thick, arranged in depressions in the valves; areole large; aril stout, terminal, cupular.
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