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
  
• R : Grasslands and lands dominated by forbs, mosses or lichens
  
• S : Heathland, scrub and tundra
  
  • S1 : Tundra
    
  • S2 : Arctic, alpine and subalpine scrub
    
    • S21 : Subarctic and alpine dwarf Salix scrub
      
      • S211 : Boreo-alpine acidocline snow-patch Salix herbacea scrub
        
      • S212 : Boreo-alpine calcicline snow-patch Salix polaris scrub
        
      • S213 : Ponto-Caucasian snow-patch dwarf Salix scrub
        
    • S22 : Alpine and subalpine ericoid heath
      
      • S221 : Alpide dwarf ericoid wind heaths
        
      • S222 : Alpide acidocline Rhododendron heaths
        
      • S223 : Alpigenic high mountain Empetrum - Vaccinium heaths
        
      • S224 : Boreo-alpine and arctic heaths
        
      • S225 : Bruckenthalia heaths
        
        • S2251 : Rhodopide Bruckenthalia heaths
          
        • S2252 : Northwestern Hellenide Bruckenthalia heaths
          
        • S2253 : Carpatho-Balkanic Bruckenthalia heaths
          
        • S2254 : Anatolian Bruckenthalia heaths
          
      • S226 : Alpide Arctostaphylos uva-ursi and Arctostaphylos alpinus heaths
        
      • S227 : Alpide Rhododendron hirsutum - Erica heaths
        
      • S228 : Dryas octopetala mats
        
        • S2281 : Alpigenic high mountain Dryas mats
          
        • S2282 : Hiberno-Britannic maritime Dryas mats
          
        • S2283 : Boreo-alpine Dryas mats
          
        • S2284 : Arctic Dryas heaths
          
      • S229 : Alpide high mountain dwarf Vaccinium heaths
        
    • S23 : Alpine and subalpine Juniperus scrub
      
    • S24 : Subalpine genistoid scrub of the Amphi-Adriatic region
      
    • S25 : Subalpine and subarctic deciduous scrub
      
    • S26 : Subalpine Pinus mugo scrub
      
    • S27 : Krummholz with conifers other than Pinus mugo
      
  • S3 : Temperate and mediterranean-montane scrub
    
  • S4 : Temperate shrub heathland
    
  • S5 : Maquis, arborescent matorral and thermo-Mediterranean scrub
    
    • S51 : Mediterranean maquis and arborescent matorral
      
    • S52 : Submediterranean pseudomaquis
      
      • S521 : Helleno-Balkanic pseudomaquis
        
      • S522 : Italo-French pseudomaquis
        
      • S523 : Iberian pseudomaquis
        
      • S524 : Western Asian pseudomaquis
        
    • S53 : Spartium junceum scrub
      
    • S54 : Thermomediterranean arid 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
    
    • S91 : Temperate riparian scrub
      
    • S92 : Salix fen scrub
      
    • S93 : Mediterranean riparian scrub
      
    • S94 : Semi-desert riparian scrub
      
• T : Forest and other wooded land
  
• U : Inland habitats with no or little soil and mostly with sparse vegetation
  
• V : Vegetated man-made habitats