family Brassicaceae vs genus Lesquerella

family Brassicaceae and genus Lesquerella both are nouns.

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

family Brassicaceae (noun)	genus Lesquerella (noun)
a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives	genus of low-growing hairy herbs: bladderpods