genus Erechtites vs family Compositae

genus Erechtites and family Compositae both are nouns.

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

genus Erechtites (noun)	family Compositae (noun)
coarse herbs with whitish discoid flower heads and silky pappus	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia