Compositae vs genus Cacalia

Compositae and genus Cacalia both are nouns.

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

Compositae (noun)	genus Cacalia (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of tall smooth herbs of forested mountains of Europe and Asia minor; in some classifications includes many plants usually placed in genus Emilia