genus Stephanomeria vs family Cruciferae

genus Stephanomeria and family Cruciferae both are nouns.

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

genus Stephanomeria (noun)	family Cruciferae (noun)
malheur wire lettuce	a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives