Compositae vs genus Gerbera

Compositae and genus Gerbera both are nouns.

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

Compositae (noun)	genus Gerbera (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of South African or Asiatic herbs: African daisies