aster family vs genus Liatris

aster family and genus Liatris both are nouns.

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

aster family (noun)	genus 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