subfamily Caesalpinioideae vs Leguminosae

subfamily Caesalpinioideae and Leguminosae both are nouns.

Word	Noun	Adjective	Verb	Adverb
subfamily Caesalpinioideae	Yes	No	No	No
Leguminosae	Yes	No	No	No

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