flamboyant tree vs Caesalpinia pulcherrima

flamboyant tree and Caesalpinia pulcherrima both are nouns.

Word	Noun	Adjective	Verb	Adverb
flamboyant tree	Yes	No	No	No
Caesalpinia pulcherrima	Yes	No	No	No

As nouns, flamboyant tree and Caesalpinia pulcherrima are synonyms defined as:

flamboyant tree and Caesalpinia pulcherrima: tropical shrub or small tree having showy yellow to orange-red flowers; sometimes placed in genus Poinciana

Other synonyms of flamboyant tree include paradise flower, Poinciana pulcherrima, pride of barbados.

flamboyant tree (noun)	Caesalpinia pulcherrima (noun)
tropical shrub or small tree having showy yellow to orange-red flowers; sometimes placed in genus Poinciana	tropical shrub or small tree having showy yellow to orange-red flowers; sometimes placed in genus Poinciana