The small flowers (petals are only 1.5-2.5 mm) have a greenish color and are often not fully turned (resupinate).
[3][1] Sometimes two subspecies are considered, Platanthera chorisiana var.
Worldwide distribution is around the northern pacific coast, extending west along the Aleutian Islands to Kamchatka in Russia and to northern Japan.
Plants grow in bogs and wet tundra up to a maximum elevation of 400 m.[3] Platanthera chorisiana was first described by Adelbert von Chamisso in 1828 as Habenaria chorisiana.
[5] Media related to Platanthera chorisiana at Wikimedia Commons