(en) Richard M. Bateman, Karen E. James, Yi-Bo Luo, Robert K. Lauri, Timothy Fulcher, Phillip J. Cribb et Mark W. Chase, « Molecular phylogenetics and morphological reappraisal of the Platanthera clade (Orchidaceae: Orchidinae) prompts expansion of the generic limits of Galearis and Platanthera », Annals of Botany, vol. 104, no 3, , p. 431-445 (lire en ligne)