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
    
    • MJ11 : Arctic sea ice
      
    • MJ12 : Baltic sea ice
      
  • MJ2 : Freshwater ice
    
  • MJ3 : Brine channels
    
  • MJ4 : Under-ice habitat
    
    • MJ41 : Arctic under-ice habitat
      
    • 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
    
  • T2 : Broadleaved evergreen forest
    
  • T3 : Coniferous forest
    
    • T31 : Temperate mountain Picea forest
      
    • T32 : Temperate mountain Abies forest
      
    • T33 : Mediterranean mountain Abies forest
      
    • T34 : Temperate subalpine Larix, Pinus cembra and Pinus uncinata forest
      
    • T35 : Temperate continental Pinus sylvestris forest
      
      • T351 : Caledonian forest
        
      • T352 : Middle European Pinus sylvestris forests
        
      • T353 : Inner-Alpine Ononis steppe forests
        
      • T354 : Spring heath Pinus sylvestris forests
        
      • T355 : Inner Alpine Minuartia laricifolia steppe forests
        
      • T356 : Pyrenean mesophile Pinus sylvestris forests
        
      • T357 : Central Massif Pinus sylvestris forests
        
      • T358 : Southwestern Alpine mesophile Pinus sylvestris forests
        
      • T359 : European Pinus sylvestris reforestation
        
    • T36 : Temperate and submediterranean montane Pinus sylvestris-Pinus nigra forest
      
    • T37 : Mediterranean montane Pinus sylvestris-Pinus nigra forest
      
    • T38 : Mediterranean montane Cedrus forest
      
    • T39 : Mediterranean and Balkan subalpine Pinus heldreichii-Pinus peuce forest
      
    • T3A : Mediterranean lowland to submontane Pinus forest
      
    • T3B : Pinus canariensis forest
      
    • T3C : Taxus baccata forest
      
    • T3D : Mediterranean Cupressaceae forest
      
    • T3E : Macaronesian Juniperus forest
      
    • T3F : Dark taiga
      
      • T3F1 : Vaccinium myrtillus western Picea taiga
        
      • T3F2 : Fern western Picea taiga
        
      • T3F3 : Small-herb western Picea taiga
        
      • T3F4 : Tall-herb western Picea taiga
        
      • T3F5 : Pretundra Picea obovata taiga
        
    • T3G : Pinus sylvestris light taiga
      
    • T3H : Larix light taiga
      
    • T3J : Pinus and Larix mire forest
      
      • T3J1 : Boreal Pinus sylvestris bog forests
        
      • T3J2 : Boreal sphagnum Pinus sylvestris fen forests
        
      • T3J3 : Boreal brown moss Pinus sylvestris fen forests
        
      • T3J4 : Pinus mugo bog forests
        
      • T3J5 : Nemoral Pinus sylvestris mire forests
        
      • T3J6 : Balkan Pinus sylvestris mire forests
        
      • T3J7 : Steppe Pinus sylvestris mire forests
        
    • T3K : Picea mire forest
      
    • T3L : Coniferous self sown forest of non site-native trees
      
    • T3M : Coniferous plantation of non site-native trees
      
    • T3N : Coniferous plantation of site-native trees
      
  • 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
  
  • U1 : Terrestrial underground caves, cave systems, passages and waterbodies
    
  • U2 : Screes
    
  • U3 : Inland cliffs, rock pavements and outcrops
    
  • U4 : Snow or ice-dominated habitats
    
  • U5 : Miscellaneous inland habitats usually with very sparse or no vegetation
    
  • U6 : Recent volcanic features
    
• 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
    
    • V41 : Hedgerows of non-native species
      
    • V42 : Highly-managed hedgerows of native species
      
    • V43 : Species-rich hedgerows of native species
      
    • V44 : Species-poor hedgerows of native species
      
  • V5 : Shrub plantations
    
  • V6 : Tree dominated man-made habitats
    
    • V61 : Broadleaved fruit and nut tree orchards
      
    • V62 : Evergreen orchards and groves
      
    • V63 : Lines of planted trees
      
    • V64 : Small deciduous broadleaved planted other wooded land
      
    • V65 : Small evergreen broadleaved planted other wooded land
      
    • V66 : Small coniferous planted other wooded land