family Brassicaceae vs genus Turritis

family Brassicaceae and genus Turritis both are nouns.

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

family Brassicaceae (noun)	genus Turritis (noun)
a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives	closely related to and often included in genus Arabis