Any of various plants of the genus Trillium,of North America,the Himalaya Mountains,and eastern Asia,usually having a single cluster of three leaves and a variously colored,three-petaled flower.

• 延龄草一种延龄草属的植物，产于北美洲、喜马拉雅山脉和东亚，通常有三片轮生的叶和各种颜色的三瓣花