Trillidium Kunth.
A genus of 2 species, perennial herbs, of e. Asia and e. North America. See Floden & Schilling in Weakley et al. (2018b) for discussion for the reasons for separating Trillidium from Trillium. Kim, Kim, & Kim (2019) also found Trillidium undulatum + T. govanianum to form a strongly supported clade basal to Trillium.
Ref: Floden & Schilling (2018b) In Weakley et al. (2018b); Kim, Kim, & Kim (2019); Patrick (1985); Weakley et al. (2018b). Show full citations.
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