Tree to 10 m high or shrub 2-5 m high. Bark fissured, grey-brown. New shoots resinous, scurfy, rusty-brown or sometimes with dense silver appressed to subappressed hairs. Branchlets terete, light brown to reddish, glabrous or sometimes with appressed or spreading hairs. Phyllodes falcate to subfalcate, 7-14 cm long, 6-25 mm wide, glabrous or occasionally sericeous, with 3-5 ±prominent longitudinal nerves; minor nerves crowded, often almost touching, closely reticulate with narrow obscure elongated nerve-islands. Inflorescences simple or rarely racemose (racemes to 20 mm long); spikes 1.5-5.5 cm long, usually 2 per axil, yellow. Flowers 5-merous; calyx deeply lobed, villous; ovary pubescent. Pods linear, tapering at each end, ±straight, 3-10.5 cm long, 5-9 mm wide, woody, glabrous, grey and longitudinally furrowed when dry. Seeds oblique, broadly elliptic, 5-6 mm long, black; areole oblong-elliptic, closed; aril cream.
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