EUNIS habitat type hierarchical view (marine version 2022 & terrestrial version 2021)

The EUNIS habitat classification review is on-going. Four groups are pending review: Inland waters, Wetlands, Constructed, industrial and other artificial habitats and Complexes.

• M : Marine benthic habitats (MA-MG)
  
• MH : Pelagic water column
  
• MJ : Ice-associated marine habitats
  
• N : Coastal habitats
  
• Q : Wetlands
  
• R : Grasslands and lands dominated by forbs, mosses or lichens
  
• S : Heathland, scrub and tundra
  
• T : Forest and other wooded land
  
  • T1 : Deciduous broadleaved forest
    
    • T11 : Temperate Salix and Populus riparian forest
      
    • T12 : Alnus glutinosa-Alnus incana forest on riparian and mineral soils
      
    • T13 : Temperate hardwood riparian forest
      
    • T14 : Mediterranean and Macaronesian riparian forest
      
    • T15 : Broadleaved swamp forest on non-acid peat
      
    • T16 : Broadleaved mire forest on acid peat
      
      • T161 : Sphagnum Betula forests
        
      • T162 : Alnus swamp forests on acid peat
        
    • T17 : Fagus forest on non-acid soils
      
    • T18 : Fagus forest on acid soils
      
    • T19 : Temperate and submediterranean thermophilous deciduous forest
      
    • T1A : Mediterranean thermophilous deciduous forest
      
    • T1B : Acidophilous Quercus forest
      
    • T1C : Temperate and boreal mountain Betula and Populus tremula forest on mineral soils
      
      • T1C1 : Birch forest not on marshy terrain
        
        • T1C11 : Atlantic lowland and collinar Betula forests
          
        • T1C12 : British sub-boreal Betula forests
          
        • T1C13 : Hercynio-Alpine Betula forests
          
        • T1C14 : Oroboreal Betula forests and thickets
          
        • T1C15 : Eurasian boreal Betula forests
          
        • T1C16 : Siberian steppe Betula forests
          
        • T1C17 : Ponto-Caspian Betula forests
          
      • T1C2 : Populus tremula forest
        
      • T1C3 : Sorbus aucuparia forest
        
      • T1C4 : Inland dune Quercus - Betula forests
        
      • T1C5 : Populus tremula and Betula forests with Sambucus
        
    • T1D : Southern European mountain Betula and Populus tremula forest on mineral soils
      
      • T1D1 : Iberian acidophilous birch forests
        
      • T1D2 : Insubrian acidophilous birch forests
        
      • T1D3 : Pyrenean birch forests
        
      • T1D4 : Apennine birch forests
        
      • T1D5 : Sub-Mediterranean Populus tremula stands
        
      • T1D6 : Corsican Betula forests
        
      • T1D7 : Montane Betula celtiberica forests
        
      • T1D8 : Mount Etna Betula stands
        
    • T1E : Carpinus and Quercus mesic deciduous forest
      
    • T1F : Ravine forest
      
    • T1G : Alnus cordata forest
      
    • T1H : Broadleaved deciduous plantation of non site-native trees
      
    • T1J : Deciduous self sown forest of non site-native trees
      
    • T1K : Broadleaved deciduous plantation of site-native trees
      
  • T2 : Broadleaved evergreen forest
    
  • T3 : Coniferous forest
    
  • T4 : Lines of trees, small anthropogenic forests, recently felled forest, early-stage forest and coppice
    
• U : Inland habitats with no or little soil and mostly with sparse vegetation
  
• V : Vegetated man-made habitats