genus Piqueria vs family Compositae

genus Piqueria and family Compositae both are nouns.

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

genus Piqueria (noun)	family Compositae (noun)
small genus of tropical American perennial herbs or subshrubs with white to pale yellow flowers; often included in genus Stevia	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia