Tree to 8 m high, with pendulous branches. Bark rough and grey at base of trunks, smooth and mottled above. Branchlets lenticellate, glabrous. Phyllodes narrowly elliptic to lanceolate, sometimes oblanceolate, straight to shallowly falcate, 7.5–15 (–18) cm long, 5–20 (–35) mm wide, acuminate, thinly coriaceous, glabrous, with (4–) 5–10 distant main veins and longitudinally reticulate in between; gland 1–2 mm above pulvinus, with sometimes an additional gland near middle of phyllode. Inflorescences rudimentary 2-headed racemes, 1 or 2 per axil; raceme axes 1–2 mm long; peduncles 3–12 (–16) mm long, glabrous; heads globular, 3.5–4 mm diam., 20–30-flowered, pale yellow. Flowers 5-merous; sepals united at base. Pods strongly constricted between seeds and readily breaking into 1-seeded indehiscent segments, flat but slightly raised over seeds along the midline, to 10 cm long, (5–) 6–11 mm wide, thinly coriaceous, ±sparingly reticulate, glabrous; margins very narrowly winged. Seeds longitudinal, oblong-elliptic, c. 5 mm long, 3 mm wide, dull, dark brown; funicle not or scarcely thickened into a clavate aril.
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