Platanthera borealis (Cham.) Rchb.f. in H.G.L.Reichenbach
Platanthera hyperborea var. minor Lange
Limnorchis borealis (Cham.) Rydb.
Limnorchis brachypetala Britton & Rydb.
Habenaria dilatata var. borealis (Cham.) Muenscher
Platanthera hyperborea is small orchid found only in Greenland, Iceland, and Akimiski Island in Canada. Numerous authors cite the species as widespread in other parts of Canada and also in the United States; such populations are more correctly referred to as Platanthera aquilonis.