Papilionoideae vs Vigna

Papilionoideae and Vigna both are nouns.

Word	Noun	Adjective	Verb	Adverb
Papilionoideae	Yes	No	No	No
Vigna	Yes	No	No	No

Papilionoideae (noun)	Vigna (noun)
alternative name used in some classification systems for the family Papilionaceae	genus of vines or erect herbs having trifoliate leaves and yellowish or purplish flowers; of warm or tropical regions; most species often placed in genus Phaseolus