family Brassicaceae vs genus Draba

family Brassicaceae and genus Draba both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Brassicaceae	Yes	No	No	No
genus Draba	Yes	No	No	No

family Brassicaceae (noun)	genus Draba (noun)
a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives	large genus of low tufted herbs of temperate and Arctic regions