Circumpolar Arctic Vegetation Unit W3
- About the Vegetation Map Units
- Bioclimate Subzones
- Floristic Provinces
- Lake Cover
- NDVI and Phytomass
- Substrate Chemistry
W3. Sedge, moss, low-shrub wetland
Wetlands in Subzone E, often bog/fen complexes with deep organic soils. Large components of dwarf-shrub tundra (Unit S1) or tussock tundra (Unit G4) are usually present in slightly elevated microsites such as peat plateaus, and palsas.
Area: 159 x 1000 km2.
Plant communities of the classes Oxycocco-Sphagnetea Br. -Bl. et Tx. 1943 and Scheuchzerio-Caricetea (Nordh. 1936) Tx. 1937 (cf. Ledo decumbentis-Betuletalia glandulosae Rivas-Martinez et al. 1999).
Wet sites are dominated by sedges and mosses. The main plant communities on elevated microsites are shrublands with prostrate and erect dwarf-shrubs and mosses.
- Sedge: Eriophorum vaginatum; Carex chordorrhiza; Carex rotundata; Carex rariflora;
- Moss: Sphagnum; Calliergon stramineum;
- Prostrate and erect dwarf-shrubs: Ledum palustre spp. decumbens; Vaccinium; Empetrum; Rubus chamaemorus; Oxycoccus microphyllum; Salix richardsoniin; Salix fuscescens; Salix myrtilloides; Salix pulchra; Betula nana s.l.;