genus Alyssum vs family Cruciferae

genus Alyssum and family Cruciferae both are nouns.

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

genus Alyssum (noun)	family Cruciferae (noun)
a genus of the family Cruciferae, containing annual and perennial herbaceous plants or small shrubs, growing to 10-100 cm tall, with oblong-oval leaves and yellow or white flowers (Alyssum)	a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives