Cruciferae vs genus Erysimum

Cruciferae and genus Erysimum both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cruciferae	Yes	No	No	No
genus Erysimum	Yes	No	No	No

Cruciferae (noun)	genus Erysimum (noun)
a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives	large genus of annual or perennial herbs some grown for their flowers and some for their attractive evergreen leaves; Old World and North America