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
  
  • N1 : Coastal dunes and sandy shores
    
    • N11 : Atlantic, Baltic and Arctic sand beach
      
    • N12 : Mediterranean and Black Sea sand beach
      
    • N13 : Atlantic and Baltic shifting coastal dune
      
    • N14 : Mediterranean, Macaronesian and Black Sea shifting coastal dune
      
    • N15 : Atlantic and Baltic coastal dune grassland (grey dune)
      
    • N16 : Mediterranean and Macaronesian coastal dune grassland (grey dune)
      
    • N17 : Black Sea coastal dune grassland (grey dune)
      
    • N18 : Atlantic and Baltic coastal Empetrum heath
      
    • N19 : Atlantic coastal Calluna and Ulex heath
      
    • N1A : Atlantic and Baltic coastal dune scrub
      
      • N1A1 : Atlantic and Baltic coastal dune thickets
        
      • N1A2 : Salix arenaria mats
        
      • N1A3 : Dune Juniperus thickets
        
      • N1A4 : Coastal dune Rosa rugosa thickets
        
    • N1B : Mediterranean and Black Sea coastal dune scrub
      
    • N1C : Macaronesian coastal dune scrub
      
    • N1D : Atlantic and Baltic broad-leaved coastal dune forest
      
    • N1E : Black Sea broad-leaved coastal dune forest
      
    • N1F : Baltic coniferous coastal dune forest
      
    • N1G : Mediterranean coniferous coastal dune forest
      
    • N1H : Atlantic and Baltic moist and wet dune slack
      
    • N1J : Mediterranean and Black Sea moist and wet dune slack
      
  • N2 : Coastal shingle
    
    • N21 : Atlantic, Baltic and Arctic coastal shingle beach
      
    • N22 : Mediterranean and Black Sea coastal shingle beach
      
  • N3 : Rock cliffs, ledges and shores, including the supralittoral
    
    • N31 : Atlantic and Baltic rocky sea cliff and shore
      
    • N32 : Mediterranean and Black Sea rocky sea cliff and shore
      
      • N321 : Subtropical Thermo-Atlantic sea-cliffs and rocky shores
        
      • N322 : Mediterraneo-Pontic sea-cliffs and rocky shores
        
      • N323 : Mediterranean and Black Sea rock stacks and islets above splash zone
        
      • N324 : Tethyan sea-cliff communities
        
      • N325 : Coastal lagoon cliff communities
        
    • N33 : Macaronesian rocky sea cliff and shore
      
    • N34 : Atlantic and Baltic soft sea cliff
      
      • N341 : Baltic chalk and moraine cliffs
        
    • N35 : Mediterranean and Black Sea soft sea cliff
      
• R : Grasslands and lands dominated by forbs, mosses or lichens
  
  • R1 : Dry grasslands
    
  • R2 : Mesic grasslands
    
  • R3 : Seasonally wet and wet grasslands
    
    • R31 : Mediterranean tall humid inland grassland
      
    • R32 : Mediterranean short moist grassland of lowlands
      
    • R33 : Mediterranean short moist grassland of mountains
      
    • R34 : Submediterranean moist meadow
      
    • R35 : Moist or wet mesotrophic to eutrophic hay meadow
      
    • R36 : Moist or wet mesotrophic to eutrophic pasture
      
      • R361 : Atlantic and sub-Atlantic humid pastures
        
      • R362 : Flood swards and related communities
        
    • R37 : Temperate and boreal moist or wet oligotrophic grassland
      
  • R4 : Alpine and subalpine grasslands
    
  • R5 : Forest fringes and clearings and tall forb stands
    
  • R6 : Inland salt steppes and salt marshes
    
  • R7 : Sparsely wooded grasslands
    
• S : Heathland, scrub and tundra
  
  • S1 : Tundra
    
  • S2 : Arctic, alpine and subalpine scrub
    
  • S3 : Temperate and mediterranean-montane scrub
    
  • S4 : Temperate shrub heathland
    
    • S41 : Wet heath
      
    • S42 : Dry heath
      
    • S43 : Macaronesian heath
      
  • S5 : Maquis, arborescent matorral and thermo-Mediterranean scrub
    
  • S6 : Garrigue
    
  • S7 : Spiny Mediterranean heaths (phrygana, hedgehog-heaths and related coastal cliff vegetation)
    
  • S8 : Thermo-Atlantic xerophytic scrub
    
  • S9 : Riverine and fen scrubs
    
• T : Forest and other wooded land
  
• U : Inland habitats with no or little soil and mostly with sparse vegetation
  
• V : Vegetated man-made habitats