royal poinciana

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A tree (Delonix regia) in the pea family, native to Madagascar and widely cultivated for its showy scarlet flowers.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A tropical tree, Delonix regia, grown for its bright red flower clusters; native to Madagascar but grown in many other tropical regions.; the flamboyant

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun showy tropical tree or shrub native to Madagascar; widely planted in tropical regions for its immense racemes of scarlet and orange flowers; sometimes placed in genus Poinciana