subfamily Caesalpinioideae vs legume family

subfamily Caesalpinioideae and legume family both are nouns.

Word	Noun	Adjective	Verb	Adverb
subfamily Caesalpinioideae	Yes	No	No	No
legume family	Yes	No	No	No

subfamily Caesalpinioideae (noun)	legume family (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