Delonix regia is a species of flowering plant in the bean family Fabaceae, subfamily Caesalpinioideae native to Madagascar. It is noted for its fern-like leaves and flamboyant display of orange-red flowers over summer. In many tropical parts of the world it is grown as an ornamental tree. It is a non-nodulating legume.
Although its country of origin was unknown, it had been in widespread cultivation for centuries. Finally, in 1932, a natural colony was discovered on the west coast of Madagascar by J. Leandri.