genus Argyroxiphium vs aster family

genus Argyroxiphium and aster family both are nouns.

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

genus Argyroxiphium (noun)	aster family (noun)
small genus of Hawaiian spreading and rosette-forming shrubs	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia