Constantly submerged hollows carpeted by floating or bottom-hugging mats of often bright green sphagna, in particular, Sphagnum cuspidatum, Sphagnum recurvum, Sphagnum majus (Sphagnum dusenii), Sphagnum balticum, sometimes accompanied by bryopsid mosses, in particular, Drepanocladus fluitans, Lophozia inflata, and with a vascular cortège that may typically be dominated by Rhynchospora alba, Scheuchzeria palustris, Eriophorum vaginatum, Eriophorum angustifolium, Menyanthes trifoliata or Carex limosa, and include Carex paupercula, Carex pauciflora, Vaccinium oxycoccos, Drosera rotundifolia, Andromeda polifolia.