genus Chaenactis vs aster family

genus Chaenactis and aster family both are nouns.

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

genus Chaenactis (noun)	aster family (noun)
genus of flowering herbs of western United States	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia