Leguminosae vs Caesalpinioideae

Leguminosae and Caesalpinioideae both are nouns.

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

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