Flowering and fruiting period: Throughout the year

Distribution: Native of tropical Australia

Habitat: Grown as avenue tree, also raised in plantations

Uses: Timber yielding, tannin source, weed with ability to outstrip any competition

Key Characters: Trees, to 15 m high, bark brown, smooth. Phyllodes alternate; stipules lateral; petiole pulvinate, slender, glabrous; lamina linear, margin entire. Flowers bisexual, yellow, in axillary spike; calyx campanulate; lobes 5; corolla lobes 5, lobes lanceolate; stamens many; ovary superior, subsessile, glabrous. Fruit a pod, flat, woody and much twisted in irregular coils; seeds black, with orange-yellow coloured aril.