genus Lathyrus vs Papilionoideae

genus Lathyrus and Papilionoideae both are nouns.

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

genus Lathyrus (noun)	Papilionoideae (noun)
genus of climbing herbs of Old World and temperate North and South America: vetchling; wild pea	alternative name used in some classification systems for the family Papilionaceae