family Compositae vs genus Wyethia

family Compositae and genus Wyethia both are nouns.

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

family Compositae (noun)	genus Wyethia (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	coarse leafy perennial plants resembling sunflowers found especially in the western United States