vanilla bean vs Vanilla planifolia

vanilla bean and Vanilla planifolia both are nouns.

Word	Noun	Adjective	Verb	Adverb
vanilla bean	Yes	No	No	No
Vanilla planifolia	Yes	No	No	No

vanilla bean (noun)	Vanilla planifolia (noun)
long bean-like fruit; seeds are used as flavoring	a climbing orchid bearing a podlike fruit yielding vanilla beans; widely cultivated from Florida southward throughout tropical America