cruciferous vs Cruciferae

cruciferous is not a noun while Cruciferae is a noun.

Word	Noun	Adjective	Verb	Adverb
cruciferous	No	Yes	No	No
Cruciferae	Yes	No	No	No

cruciferous (noun)	Cruciferae (noun)
	a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives

cruciferous (adjective)	Cruciferae (adjective)
of or relating to or belonging to the plant family Cruciferae