genus Scorzonera vs family Compositae

genus Scorzonera and family Compositae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Scorzonera	Yes	No	No	No
family Compositae	Yes	No	No	No

genus Scorzonera (noun)	family Compositae (noun)
genus of narrow-leaved European herbs	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia