genus Ageratina vs family Compositae

genus Ageratina and family Compositae both are nouns.

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

genus Ageratina (noun)	family Compositae (noun)
annual to perennial herbs or shrubs of eastern United States and Central and South America	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia