genus Cercis vs Papilionoideae

genus Cercis and Papilionoideae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Cercis	Yes	No	No	No
Papilionoideae	Yes	No	No	No

genus Cercis (noun)	Papilionoideae (noun)
deciduous shrubs and trees of eastern Asia, southern Europe and the United States	alternative name used in some classification systems for the family Papilionaceae