genus Helianthus vs family Compositae

genus Helianthus and family Compositae both are nouns.

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

genus Helianthus (noun)	family Compositae (noun)
genus of tall erect or branched American annual or perennial herbs with showy flowers: sunflowers	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia