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)
  
  • MA1 : Littoral rock
    
  • MA2 : Littoral biogenic habitat
    
  • MA3 : Littoral coarse sediment
    
  • MA4 : Littoral mixed sediment
    
  • MA5 : Littoral sand
    
  • MA6 : Littoral mud
    
    • MA61 : Arctic littoral mud
      
    • MA62 : Atlantic littoral mud
      
    • MA63 : Baltic hydrolittoral mud
      
    • MA64 : Black Sea littoral mud
      
    • MA65 : Mediterranean littoral mud
      
  • MB1 : Infralittoral rock
    
  • MB2 : Infralittoral biogenic habitat
    
  • MB3 : Infralittoral coarse sediment
    
  • MB4 : infralittoral mixed sediment
    
  • MB5 : Infralittoral sand
    
  • MB6 : Infralittoral mud
    
  • MC1 : Circalittoral rock
    
  • MC2 : Circalittoral biogenic habitat
    
  • MC3 : Circalittoral coarse sediment
    
  • MC4 : Circalittoral mixed sediment
    
  • MC5 : Circalittoral sand
    
  • MC6 : Circalittoral mud
    
  • MD1 : Offshore circalittoral rock
    
  • MD2 : Offshore circalittoral biogenic habitat
    
  • MD3 : Offshore circalittoral coarse sediment
    
  • MD4 : Offshore circalittoral mixed sediment
    
  • MD5 : Offshore circalittoral sand
    
  • MD6 : Offshore circalittoral mud
    
  • ME1 : Upper bathyal rock
    
  • ME2 : Upper bathyal biogenic habitat
    
  • ME3 : Upper bathyal coarse sediment
    
  • ME4 : Upper bathyal mixed sediment
    
  • ME5 : Upper Bathyal sand
    
  • ME6 : Upper Bathyal mud
    
  • MF1 : Lower bathyal rock
    
  • MF2 : Lower bathyal biogenic habitat
    
  • MF3 : Lower bathyal coarse sediment
    
    • MF31 : Arctic lower bathyal coarse sediment
      
    • MF32 : Atlantic lower bathyal coarse sediment
      
    • MF34 : Black Sea lower bathyal coarse sediment
      
    • MF35 : Mediterranean lower bathyal coarse sediment
      
  • MF4 : Lower bathyal mixed sediment
    
  • MF5 : Lower bathyal sand
    
  • MF6 : Lower bathyal mud
    
  • MG1 : Abyssal rock
    
  • MG2 : Abyssal biogenic habitat
    
  • MG3 : Abyssal coarse sediment
    
  • MG4 : Abyssal mixed sediment
    
  • MG5 : Abyssal sand
    
  • MG6 : Abyssal mud
    
• MH : Pelagic water column
  
• MJ : Ice-associated marine habitats
  
• 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
    
  • S3 : Temperate and mediterranean-montane scrub
    
  • S4 : Temperate shrub heathland
    
  • S5 : Maquis, arborescent matorral and thermo-Mediterranean scrub
    
  • S6 : Garrigue
    
    • S61 : Western basiphilous garrigue
      
      • S611 : Western Quercus coccifera garrigues
        
      • S612 : Western Rosmarinus officinalis garrigues
        
      • S613 : Western Cistus garrigues
        
      • S614 : Western Euphorbia garrigues
        
      • S615 : Western Juniperus oxycedrus garrigues
        
      • S616 : Western Lavandula garrigues
        
      • S617 : Western Teucrium and other labiate garrigues
        
      • S618 : Western Genista garrigues
        
      • S619 : Western Calicotome garrigues
        
      • S61A : Western composite garrigues
        
      • S61B : Western Erica garrigues
        
      • S61C : Western Globularia garrigues
        
      • S61D : Western Helianthemum and Fumana garrigues
        
      • S61E : Lithodora fruticosa garrigues
        
      • S61F : Western Thymelaea garrigues
        
      • S61G : Western Ononis fruticosa garrigues
        
      • S61H : Western Anthyllis cytisoides garrigues
        
      • S61J : Western Dictamnus garrigues
        
      • S61K : Lavandula angustifolia garrigues
        
      • S61L : Genista cinerea garrigues
        
      • S61M : Ibero-Gallic supra-Mediterranean dwarf-shrub garrigues
        
      • S61N : Supra-Mediterranean Buxus sempervirens scrub
        
      • S61P : Italian supra-Mediterranean garrigues
        
    • S62 : Western acidophilous garrigue
      
    • 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
  
• U : Inland habitats with no or little soil and mostly with sparse vegetation
  
• V : Vegetated man-made habitats