genus Layia vs family Compositae

genus Layia and family Compositae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Layia	Yes	No	No	No
family Compositae	Yes	No	No	No

genus Layia (noun)	family Compositae (noun)
genus of western United States annuals with showy yellow or white flowers	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia