Virgilia vs subfamily Papilionoideae

Virgilia and subfamily Papilionoideae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Virgilia	Yes	No	No	No
subfamily Papilionoideae	Yes	No	No	No

Virgilia (noun)	subfamily Papilionoideae (noun)
genus of South African trees having pinnate leaves and rose-purple flowers followed by leathery pods	alternative name used in some classification systems for the family Papilionaceae