Trees: evergreen, up to 20 m tall. Bark gray-white, smooth. Branches pendulous; branchlets angular, glabrous, with con­spicuous lenticels. Phyllodes falcate-oblong, 10-20 × 1.5-4(-6) cm, conspicuous main veins 3 or 4, both ends attenuate. Spikes 1 to several, fasciculate, axillary or terminal, 3.5-8 cm.

Flowers orange-yellow. Calyx 0.5-1 mm, shallowly dentate. Petals ob­long, 1.5-2 mm. Filaments 2.5-4 mm. Ovary densely puberu­lent. Legume contorted when mature, 5-8 × 0.8-1.2 cm, valves woody. Seeds ca. 12, black, ca. 5 × 3.5 mm. 2n = 26*.