family Compositae vs genus Gutierrezia

family Compositae and genus Gutierrezia both are nouns.

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

family Compositae (noun)	genus Gutierrezia (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	sticky perennial herbs and subshrubs of western North America and warm South America