Temporarily inundated shallow hollows, usually dominated by an often sparse cover of Rhynchospora alba, with Rhynchospora fusca, Scheuchzeria palustris, Drosera intermedia, Lycopodiella inundata, sometimes dominated by Eriophorum angustifolium or Eriophorum vaginatum, with a ground cover almost devoid of sphagna and often reduced to algae, in particular, the conjugate Zygogonium ericetorum.