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
    
  • MJ4 : Under-ice habitat
    
    • MJ41 : Arctic under-ice habitat
      
    • MJ42 : Baltic under-ice habitat
      
• N : Coastal habitats
  
• Q : Wetlands
  
• 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
      
    • S22 : Alpine and subalpine ericoid heath
      
    • S23 : Alpine and subalpine Juniperus scrub
      
    • S24 : Subalpine genistoid scrub of the Amphi-Adriatic region
      
      • S241 : Rayed broom heaths
        
      • S242 : Balkano-Rhodopide Chamaecytisus absinthioides heaths
        
      • S243 : Helleno-Balkanic Chamaecytisus hirsutus heaths
        
    • 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
    
    • S31 : Lowland to montane temperate and submediterranean Juniperus scrub
      
    • S32 : Temperate Rubus scrub
      
    • S33 : Lowland to montane temperate and submediterranean genistoid scrub
      
      • S331 : Temperate Cytisus scoparius fields
        
      • S332 : Ulex europaeus thickets
        
      • S333 : Montane Cytisus purgans fields
        
      • S334 : Piornales
        
      • S335 : Tyrrhenian broom fields
        
      • S336 : Genista aetnensis stands
        
      • S337 : Canary Island broom fields
        
      • S338 : Moesian broom fields
        
    • S34 : Balkan-Anatolian submontane genistoid scrub
      
    • S35 : Temperate and submediterranean thorn scrub
      
      • S351 : Medio-European rich-soil thickets
        
      • S352 : Buxus sempervirens thickets
        
      • S353 : Atlantic poor soil thickets
        
        • S3531 : Bramble thickets
          
        • S3532 : Alder buckthorn, rowan, honeysuckle thickets
          
      • S354 : Inland dune thickets
        
      • S355 : Southwestern sub-mediterranean deciduous thickets
        
      • S356 : Tyrrhenian sub-mediterranean deciduous thickets
        
      • S357 : Subcontinental and continental deciduous thickets
        
    • S36 : Low steppic scrub
      
    • S37 : Corylus avellana scrub
      
      • S371 : Corylus thickets
        
    • S38 : Temperate forest clearing scrub
      
  • S4 : Temperate shrub heathland
    
    • S41 : Wet heath
      
    • S42 : Dry heath
      
    • S43 : Macaronesian heath
      
  • S5 : Maquis, arborescent matorral and thermo-Mediterranean scrub
    
  • S6 : Garrigue
    
    • S61 : Western basiphilous garrigue
      
    • S62 : Western acidophilous garrigue
      
      • S621 : Western Bupleurum garrigues
        
      • S622 : Western Ulex garrigues
        
    • S63 : Eastern garrigue
      
    • S64 : Macaronesian garrigue
      
    • S65 : Mediterranean gypsum scrub
      
    • S66 : Mediterranean halo-nitrophilous scrub
      
    • S67 : Aralo-Caspian semi-desert
      
    • S68 : Semi-desert sand dune with sparse scrub
      
  • 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
  
  • T1 : Deciduous broadleaved forest
    
  • 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