family Compositae vs genus Coreopsis

family Compositae and genus Coreopsis both are nouns.

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

family Compositae (noun)	genus Coreopsis (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of American plants widely cultivated for their flowers