Rhizophora mangle vs genus Rhizophora

Rhizophora mangle and genus Rhizophora both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rhizophora mangle	Yes	No	No	No
genus Rhizophora	Yes	No	No	No

Rhizophora mangle (noun)	genus Rhizophora (noun)
a tropical tree or shrub bearing fruit that germinates while still on the tree and having numerous prop roots that eventually form an impenetrable mass and are important in land building	type genus of the Rhizophoraceae; a small genus of tropical trees and shrubs