family Cruciferae vs genus Heliophila

family Cruciferae and genus Heliophila both are nouns.

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

family Cruciferae (noun)	genus Heliophila (noun)
a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives	genus of South African flowering herbs and subshrubs