Asteraceae vs genus Onopordum

Asteraceae and genus Onopordum both are nouns.

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

Asteraceae (noun)	genus Onopordum (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	a genus of Eurasian herbs of the family Compositae with prickly foliage and large purplish flowers