family Cruciferae vs genus Cheiranthus

family Cruciferae and genus Cheiranthus both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Cruciferae	Yes	No	No	No
genus Cheiranthus	Yes	No	No	No

family Cruciferae (noun)	genus Cheiranthus (noun)
a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives	Old World perennial plants grown for their showy flowers