aster family vs genus Xeranthemum

aster family and genus Xeranthemum both are nouns.

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

aster family (noun)	genus Xeranthemum (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of annual densely hairy herbs of Mediterranean to southwestern Asia