1. (n.)flame tree either of two Australian trees, Brachychitonacerifolius or B.australis, having lobed leaves and clusters of scarlet flowers.
Etymology: (1865–70)
Definition of 'flame tree'
Princeton's WordNet
1. (noun)flame tree, fire tree, Christmas tree, Nuytsia floribunda a terrestrial evergreenshrub or smalltree of westernAustralia having brilliant yellow-orange flowers; parasitic on roots of grasses
2. (noun)royal poinciana, flamboyant, flame tree, peacock flower, Delonix regia, Poinciana regia showy tropical tree or shrubnative to Madagascar; widely planted in tropical regions for its immense racemes of scarlet and orange flowers; sometimes placed in genusPoinciana
3. (noun)flame tree, broad-leaved bottletree, Brachychiton australis northAustraliantree having white flowers and broad leaves
4. (noun)flame tree, flame durrajong, Brachychiton acerifolius, Sterculia acerifolia southAustraliantree having panicles of brilliant scarlet flowers
5. (noun)huisache, cassie, mimosa bush, sweet wattle, sweet acacia, scented wattle, flame tree, Acacia farnesiana tropical American thorny shrub or small tree; fragrant yellow flowers used in makingperfumery