genus Argyroxiphium vs Asteraceae

genus Argyroxiphium and Asteraceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Argyroxiphium	Yes	No	No	No
Asteraceae	Yes	No	No	No

genus Argyroxiphium (noun)	Asteraceae (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