This alliance includes boreal bog vegetation with isolated occurrences in the supramontane to subalpine belt of the central European mountain ranges. It occurs in bogs in precipitation-rich areas with low temperatures and short growing seasons, characterized by the occurrence of boreo-arctic species such as Betula nana. Oxycoccus microcarpus and Rubus chamaemorus. In central Europe these species are rare, and transitional stands to the alliance Sphagnion magellanici are more common than typical stands.