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
  
  • Q1 : Raised and blanket bogs
    
  • Q2 : Valley mires, poor fens and transition mires
    
  • Q3 : Palsa mires
    
  • Q4 : Base-rich fens and calcareous spring mires
    
    • Q41 : Alkaline, calcareous, carbonate-rich small-sedge spring fen
      
      • Q411 : Schoenus ferrugineus fens
        
      • Q412 : Subcontinental Carex davalliana fens
        
        • Q4121 : Peri-Alpine Davall sedge fens
          
        • Q4122 : Deergrass Davall sedge fens
          
        • Q4123 : Bohemio-Pannonic Davall sedge fens
          
        • Q4124 : Carpathian Davall sedge fens
          
        • Q4125 : Northern Davall sedge fens
          
        • Q4126 : Dinaric carnation-tawny sedge fens
          
      • Q413 : Pyrenean Carex davalliana fens
        
      • Q414 : Eleocharis quinqueflora fens
        
      • Q415 : Middle European Blysmus compressus fens
        
      • Q416 : Hard water spring mires
        
    • Q42 : Extremely rich moss-sedge fen
      
    • Q43 : Tall-sedge base-rich fen
      
      • Q431 : Schoenus nigricans fens
        
      • Q432 : Carex rostrata alkaline fens
        
      • Q433 : Calcareous dunal Juncus - sedge fens
        
      • Q434 : Tall herb fens
        
      • Q435 : Sesleria caerulea fens
        
      • Q436 : Myrica gale scrub on rich fens
        
    • Q44 : Calcareous quaking mire
      
    • Q45 : Arctic-alpine rich fen
      
      • Q451 : Carex saxatilis fens
        
      • Q452 : Carex frigida fens
        
      • Q453 : British Carex demissa - Saxifraga aizoides flushes
        
      • Q454 : Icelandic Carex bigelowii fens
        
      • Q455 : Icelandic Equisetum palustre fens
        
      • Q456 : Arctoalpine Kobresia simpliciuscula and Carex microglochin swards
        
      • Q457 : Alpine riverine Carex maritima (Carex incurva) swards
        
      • Q458 : Arctoalpine riverine Equisetum, Typha and Juncus swards
        
      • Q459 : British mica flushes
        
      • Q45A : Boreal Carex atrofusca swards
        
      • Q45B : Boreal marsh-fens
        
    • Q46 : Carpathian travertine fen with halophytes
      
  • Q5 : Helophyte beds
    
    • Q51 : Tall-helophyte bed
      
    • Q52 : Small-helophyte bed
      
    • Q53 : Tall-sedge bed
      
    • Q54 : Inland saline or brackish helophyte bed
      
  • Q6 : Periodically exposed shores
    
• R : Grasslands and lands dominated by forbs, mosses or lichens
  
  • R1 : Dry grasslands
    
  • R2 : Mesic grasslands
    
  • R3 : Seasonally wet and wet grasslands
    
  • 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
  
• T : Forest and other wooded land
  
• U : Inland habitats with no or little soil and mostly with sparse vegetation
  
• V : Vegetated man-made habitats