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
  
  • MJ1 : Sea ice
    
  • MJ2 : Freshwater ice
    
  • MJ3 : Brine channels
    
    • MJ31 : Arctic brine channels
      
    • MJ32 : Baltic brine channels
      
  • MJ4 : Under-ice habitat
    
    • MJ41 : Arctic under-ice habitat
      
      • MJ411 : Arctic under-ice habitat in first-year ice
        
      • MJ412 : Under-ice habitat in multi-year ice
        
    • MJ42 : Baltic under-ice habitat
      
• N : Coastal habitats
  
• 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
      
      • T131 : Mixed Quercus - Ulmus - Fraxinus forest of great rivers
        
    • T14 : Mediterranean and Macaronesian riparian forest
      
    • T15 : Broadleaved swamp forest on non-acid peat
      
    • T16 : Broadleaved mire forest 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
      
      • T1B1 : Atlantic Quercus robur - Betula forests
        
      • T1B2 : Atlantic acidophilous Fagus - Quercus forests
        
      • T1B3 : Atlantic Quercus petraea forests
        
      • T1B4 : Aquitano-Ligerian Quercus forests on podsols
        
      • T1B5 : Aquitano-Ligerian Quercus forests on leached or acid soils
        
      • T1B6 : Ibero-Atlantic acidophilous Quercus forests
        
      • T1B7 : Medio-European acidophilous Quercus forests
        
      • T1B8 : Insubrian acidophilous Quercus forests
        
      • T1B9 : Portuguese Quercus robur forests
        
      • T1BA : Continental Quercus petraea forests
        
    • 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
      
    • 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
    
    • T21 : Mediterranean evergreen Quercus forest
      
      • T211 : Quercus suber forest
        
      • T212 : Quercus ilex and Q. rotundifolia forest
        
      • T213 : Quercus coccifera and Quercus alnifolia forest
        
    • T22 : Mainland laurophyllous forest
      
    • T23 : Macaronesian laurophyllous forest
      
    • T24 : Olea europaea-Ceratonia siliqua forest
      
    • T25 : Phoenix theophrasti vegetation
      
    • T26 : Phoenix canariensis vegetation
      
    • T27 : Ilex aquifolium forest
      
    • T28 : Macaronesian heathy forest
      
    • T29 : Broadleaved evergreen plantation of non site-native trees
      
    • T2A : Broadleaved evergreen plantation of site-native trees
      
  • 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
  
  • V1 : Arable land and market gardens
    
  • V2 : Cultivated areas of gardens and parks
    
  • V3 : Artificial grasslands and herb dominated habitats
    
  • V4 : Hedgerows
    
  • V5 : Shrub plantations
    
  • V6 : Tree dominated man-made habitats