aster family vs genus Seriphidium

aster family and genus Seriphidium both are nouns.

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

aster family (noun)	genus Seriphidium (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	woody plants grown chiefly for their silver or grey and often aromatic foliage; formerly included in the genus Artemisia