genus Thlaspi vs family Brassicaceae

genus Thlaspi and family Brassicaceae both are nouns.

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

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