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. B.C., N.W.T., Yukon; Alaska; Eurasia.

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