Dicranum majus var. orthophyllum
Plants in loose tufts, mostly light green, somewhat dull. Leaves erect-patent, 6–8 mm; margins slightly serrulate distally to almost entire; costa serrulate to nearly smooth distally on abaxial surface, with an interrupted double row of guide cells.
Phenology: Capsules mature spring.
Habitat: Humus, sand, and rock in the tundra
Elevation: 40-1500 m
B.C., Man., N.W.T., Que., Yukon, Alaska, Europe.
I. A. Worley and Z. Iwatsuki (1970) recorded var. orthophyllum from Alaska. It is an extremely weak Arctic variety that differs from var. majus in only a few minor characters. The plants immediately appear different because of the erect-patent, short leaves instead of the long, falcate-secund leaves of var. majus. More collections are needed from many Arctic localities to better understand var. orthophyllum, which may only be an environmental form.