genus Felicia vs Compositae

genus Felicia and Compositae both are nouns.

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

genus Felicia (noun)	Compositae (noun)
genus of tropical African herbs or subshrubs with usually blue flowers	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia