aster family vs genus Carduus

aster family and genus Carduus both are nouns.

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

aster family (noun)	genus Carduus (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of annual or perennial Old World prickly thistles