family Cruciferae vs genus Malcolmia

family Cruciferae and genus Malcolmia both are nouns.

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

family Cruciferae (noun)	genus Malcolmia (noun)
a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives	genus of plants usually found in coastal habitats; Mediterranean to Afghanistan