genus Diplotaxis vs family Brassicaceae

genus Diplotaxis and family Brassicaceae both are nouns.

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

genus Diplotaxis (noun)	family Brassicaceae (noun)
wall rocket	a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives