Noun red trillium has 2 senses
- red trillium, toadshade, sessile trillium, Trillium sessile - trillium of northeastern United States with sessile leaves and red or purple flowers having a pungent odor
--1 is a kind of trillium, wood lily, wake-robin
- purple trillium, red trillium, birthroot, Trillium erectum - trillium of eastern North America having malodorous pink to purple flowers and an astringent root used in fold medicine especially to ease childbirth
--2 is a kind of trillium, wood lily, wake-robin
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