1. Any liliaceous plant of the genus Trillium having a whorl of three leaves at the top of the stem with a single three-petalled flower
   - trillium, wake-robin 
2. Lily of eastern North America having orange to orange-red purple-spotted flowers
   - Lilium philadelphicum

Derived forms: wood lilies

Type of: liliaceous plant, lily

Part of: genus Trillium

Encyclopedia: Wood lily

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