family Cruciferae vs watercress

family Cruciferae and watercress both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Cruciferae	Yes	No	No	No
watercress	Yes	Yes	No	No

family Cruciferae (noun)	watercress (noun)
a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives	cresses that grow in clear ponds and streams
	any of several water-loving cresses

family Cruciferae (adjective)	watercress (adjective)
	of a moderate yellow-green color that is greener and deeper than moss green and yellower and darker than pea green