cornel vs flowering tree

cornel and flowering tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
cornel	Yes	No	No	No
flowering tree	Yes	No	No	No

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

cornel: a tree of shrub of the genus Cornus often having showy bracts resembling flowers
flowering tree: any tree having seeds and ovules contained in the ovary

Other hypernyms of cornel include angiospermous tree.

cornel (noun)	flowering tree (noun)
a tree of shrub of the genus Cornus often having showy bracts resembling flowers	any tree having seeds and ovules contained in the ovary