family Cruciferae vs genus Armoracia

family Cruciferae and genus Armoracia both are nouns.

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

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