Shiny brown Sphagnum fuscum hummocks, dense, usually low and wide, characteristic of bogs of subcontinental boreal Europe from southeastern Norway, central and eastern Sweden eastwards, of continental boreal Europe and western Siberia, of Kamchatka, of Sakhalin, of nemoral Central Europe and of boreonemoral Eastern Europe, of the Alps and the Carpathians, occasionally prominent in more western, more Atlantic, bogs, in particular, in the British Isles, also occurring as ombrotrophic bog hummocks within acidic or neutrocline mires of the same regions.