genus Antheropeas vs Compositae

genus Antheropeas and Compositae both are nouns.

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

genus Antheropeas (noun)	Compositae (noun)
small genus of North American herbs often included in genus Eriophyllum	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia