Papilionoideae vs family Leguminosae

Papilionoideae and family Leguminosae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Papilionoideae	Yes	No	No	No
family Leguminosae	Yes	No	No	No

Papilionoideae (noun)	family Leguminosae (noun)
alternative name used in some classification systems for the family Papilionaceae	a large family of trees, shrubs, vines, and herbs bearing bean pods; divided for convenience into the subfamilies Caesalpiniaceae, Mimosaceae, Papilionaceae