1. A terrestrial evergreen shrub or small tree of western Australia having brilliant yellow-orange flowers; parasitic on roots of grasses; SYN. fire tree, Christmas tree, Nuytsia floribunda.
2. North Australian tree having white flowers and broad leaves; SYN. broad-leaved bottletree, Brachychiton australis.
3. South Australian tree having panicles of brilliant scarlet flowers; SYN. flame durrajong, Brachychiton acerifolius, Sterculia acerifolia.
Any of various trees with brilliant red flowers, including the smooth-stemmed semideciduous tree Brachychiton acerifolium with scarlet bell-shaped flowers, native to Australia, but spread throughout the tropics.