[1]
Lampley, J.A., Gereau, R., Floden, A. and Schilling, E.E. 2022.

A revised subgeneric classification of Trillium (Parideae, Melanthiaceae)

. Phytotaxa. 552, 5 (Jul. 2022), 278–286. DOI:https://doi.org/10.11646/phytotaxa.552.5.1.