genus Wyethia vs Compositae

genus Wyethia and Compositae both are nouns.

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

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