Any of various plants of the genus Zinnia,native to tropical America,especially Z. elegans,widely cultivated for its showy,rayed,variously colored flower heads.

• 百日菊，原产美洲热带地区的一种百日菊属植物，尤其是菊科，因其有各种颜色的、艳丽的舌状花头而被广泛栽植。