family Compositae vs genus Tetraneuris

family Compositae and genus Tetraneuris both are nouns.

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

family Compositae (noun)	genus Tetraneuris (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of hairy yellow-flowered plants of the western United States