genus Hypochoeris vs Compositae

genus Hypochoeris and Compositae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Hypochoeris	Yes	No	No	No
Compositae	Yes	No	No	No

genus Hypochoeris (noun)	Compositae (noun)
widely distributed genus of herbs with milky juice; includes some cosmopolitan weeds	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia