Sphagnum cymbifolium var. cordifolium C. Hartman, Handb. Skand. Fl. ed. 3, 261. 1838

Stems green. Branch leaves very concave, truncate and toothed.

Wet rock faces and in moist depressions, usually in open among scattered shrubs and sedges in relatively minerotrophic sites; low to moderate elevations; B.C., N.W.T., Nunavut, Yukon; Alaska; Eurasia.

Sphagnum aongstroemii can usually be easily recognized by its combination of pale green color and truncate, toothed branch leaves.