trillium
/ˈtrɪlɪəm/noun
1- a plant with a solitary three-petalled flower above a whorl of three leaves, native to North America and Asia延龄草。
1.1
- Genus Trillium, family Liliaceae (or Trilliaceae).延龄草属, 百合科（或延龄草科）。
词源
modern Latin, apparently an alteration of Swedish trilling 'triplet'.