3.any plant of western America of the genus Gaillardia having hairy leaves and long-stalked flowers in hot vibrant colors from golden yellow and copper to rich burgundy.

• 美洲西部天人菊属的任何一种植物，叶有毛，头状花序，具有长梗，有艳丽、黄色和紫色的花或杂色的边花。