Lower Taxa Trillium catesbaei, Trillium cernuum, Trillium erectum, Trillium flexipes, Trillium grandiflorum, Trillium nivale, Trillium ovatum, Trillium persistens
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the contact zone between T. flexipes and T. erectum. F. W. Case and R. B. Case (1993) crossed typical T. erectum and T. flexipes to produce identical color
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the mapped distribution in Ohio, Michigan, and Illinois may represent T. flexipes forma walpolei, introgressive hybrids between outlying colonies of T. erectum
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2-colored, apex acute; stigmas ± equaling ovary; rhizome praemorse. Trillium flexipes 15 Pedicel recurved or declined; flower held proximal to or below bracts
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