Compositae vs genus Stenotus

Compositae and genus Stenotus both are nouns.

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

Compositae (noun)	genus Stenotus (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of western North American low evergreen shrubs growing in dense tufts