genus Cochlearia vs family Cruciferae

genus Cochlearia and family Cruciferae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Cochlearia	Yes	No	No	No
family Cruciferae	Yes	No	No	No

genus Cochlearia (noun)	family Cruciferae (noun)
a genus of the family Cruciferae, commonly known as scurvy-grass (Cochlearia)	a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives