family Compositae vs genus Gazania

family Compositae and genus Gazania both are nouns.

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

family Compositae (noun)	genus Gazania (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of tomentose tropical African herbs with milky sap