family Cruciferae vs genus Lesquerella

family Cruciferae and genus Lesquerella both are nouns.

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

family Cruciferae (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