These are peatland forests dominated by Pinus sylvestris. Their canopy is denser than in the similar association Sphagno-Pinetum sylvestris, which belongs to the class Oxycocco-Sphagnetea. The herb layer contains a significant component of dwarf shrubs such as Calluna vulgaris, Rhododendron tomentosum, Vaccinium myrtillus, V. uliginosum and V. vitis-idaea, accompanied by bog specialists. The moss layer contains Sphagnum spp. together with forest species of mineral soils. This is a terminal successional stage of bogs at low altitudes. Soils are either strongly mineralized peat or mineral soil with peat formation. The water table is usually 30 cm below ground or deeper. This association occurs in some mountain areas and basins in the Bohemian Massif.