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
  
• Q : Wetlands
  
• R : Grasslands and lands dominated by forbs, mosses or lichens
  
  • R1 : Dry grasslands
    
  • R2 : Mesic grasslands
    
    • R21 : Mesic permanent pasture of lowlands and mountains
      
      • R211 : Unbroken pastures
        
      • R212 : Ditch-broken pastures
        
      • R213 : Abandoned pastures
        
      • R214 : Species-rich lowland flood meadows
        
      • R215 : Macaronesian mesic grassland
        
      • R216 : Boreo-arctic Agrostis-Festuca grasslands
        
    • R22 : Low and medium altitude hay meadow
      
    • R23 : Mountain hay meadow
      
    • R24 : Iberian summer pasture (vallicar)
      
  • R3 : Seasonally wet and wet grasslands
    
  • R4 : Alpine and subalpine grasslands
    
  • R5 : Forest fringes and clearings and tall forb stands
    
    • R51 : Thermophilous forest fringe of base-rich soils
      
    • R52 : Forest fringe of acidic nutrient-poor soils
      
    • R53 : Macaronesian thermophilous forest fringe
      
    • R54 : Pteridium aquilinum vegetation
      
    • R55 : Lowland moist or wet tall-herb and fern fringe
      
      • R551 : Screens or veils of perennial tall herbs lining watercourses
        
        • R5511 : Watercourse veils (other than of Filipendula)
          
        • R5512 : Western nemoral river bank tall-herb communities dominated by Filipendula
          
        • R5513 : Boreal river bank tall-herb communities dominated by Filipendula
          
        • R5514 : Continental river bank tall-herb communities dominated by Filipendula
          
        • R5515 : Eastern nemoral riverbanks with tall herb communities
          
      • R552 : Tall-herb communities of humid meadows
        
      • R553 : Shady woodland edge fringes
        
      • R554 : Mediterranean grasslands on alluvial river banks
        
    • R56 : Montane to subalpine moist or wet tall-herb and fern fringe
      
    • R57 : Herbaceous forest clearing vegetation
      
  • R6 : Inland salt steppes and salt marshes
    
  • R7 : Sparsely wooded grasslands
    
• S : Heathland, scrub and tundra
  
• T : Forest and other wooded land
  
• U : Inland habitats with no or little soil and mostly with sparse vegetation
  
• V : Vegetated man-made habitats