Delonix regia vs flowering tree

Delonix regia and flowering tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
Delonix regia	Yes	No	No	No
flowering tree	Yes	No	No	No

As nouns, flowering tree is a hypernym of Delonix regia; that is, flowering tree is a word with a broader meaning than Delonix regia:

Delonix regia: 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
flowering tree: any tree having seeds and ovules contained in the ovary

Other hypernyms of Delonix regia include angiospermous tree.

Delonix regia (noun)	flowering tree (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	any tree having seeds and ovules contained in the ovary