family Compositae vs Liatris

family Compositae and Liatris both are nouns.

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

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