Onopordum vs family Compositae

Onopordum and family Compositae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Onopordum	Yes	No	No	No
family Compositae	Yes	No	No	No

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