genus Ligularia vs Compositae

genus Ligularia and Compositae both are nouns.

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

genus Ligularia (noun)	Compositae (noun)
genus of Old World herbs resembling groundsel: leopard plants	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia