Papilionoideae vs genus Lens

Papilionoideae and genus Lens both are nouns.

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

Papilionoideae (noun)	genus Lens (noun)
alternative name used in some classification systems for the family Papilionaceae	genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils