Trees, to 30 m high, bark pale grey-brown to brown, rough, furrowed. Phyllode simple, alternate; stipules lateral, cauducous; petiole 7-10 mm long, stout, pulvinate, glabrous; lamina 16-22 x 3-10 cm, elliptic-oblong or lanceolate, base attenuate, apex acute or obtuse, margin entire, glabrous, coriaceous; 3-5-ribbed from the base, palmate, prominent, intercostae reticulate. Flowers bisexual, white, in loose axillary spikes of 12 cm long; calyx gamosepalous; corolla gamopetalous, deeply lobed; stamens many; filaments free; ovary superior, puberulous. Fruit a pod, woody, twisting into spiral cluster on dehiscence; seeds brown, 3-5 x 2-3 mm, ovate-oblong, attached to the pod by orange-red folded funicle.