genus Liatris vs family Compositae

genus Liatris and family Compositae both are nouns.

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

genus Liatris (noun)	family Compositae (noun)
genus of perennial North American herbs with aromatic usually cormous roots	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia