Royal Poinciana grows to 9 - 15 m in height but its elegant, wide-spreading, umbrella-like canopy can be even wider.
Royal Poinciana is deciduous in climates that have a marked dry season, but in tropical areas where the winter is not that much dryer than the summer, it is a semi-evergreen tree. The leaves are feather-like, twice-pinnate, and 30.5-50.8 cm long with 11-25 pairs of primary leaflets (pinnae), each divided into 10-25 pairs of secondary leaflets (pinules). The flame-colored flowers are formed in dense clusters and bloom seasonally, usually in midsummer. Th individual flowers are between 8 and 15 cm in diamerter and have four spoon shaped spreading scarlet or orange-red petals (4-7 cm long) and one upright slightly larger petal (the standard) which is marked with yellow and white. The dark brown pods are flat and woody, up to 70 cm long and 7 cm wide. They contain between 18-45 yellowish to dark brown seeds that are about 2 cm long.
(Wagner, W.L., D.R. Herbst and S.H. Sohmer. 1999. Manual of the Flowering Plants of Hawai'i.)
(Smith, A. C. 1985. Flora Vitiensis Nova)