EUNIS habitat type hierarchical view

• A : Marine habitats
  
• B : Coastal habitats
  
  • B1 : Coastal dunes and sandy shores
    
  • B2 : Coastal shingle
    
  • B3 : Rock cliffs, ledges and shores, including the supralittoral
    
• C : Inland surface waters
  
  • C1 : Surface standing waters
    
  • C2 : Surface running waters
    
    • C2.1 : Springs, spring brooks and geysers
    • C2.2 : Permanent non-tidal, fast, turbulent watercourses
    • C2.3 : Permanent non-tidal, smooth-flowing watercourses
    • C2.4 : Tidal rivers, upstream from the estuary
    •  C2.5 : Temporary running waters
    •  C2.6 : Films of water flowing over rocky watercourse margins
  • C3 : Littoral zone of inland surface waterbodies
    
• D : Mires, bogs and fens
  
  • D1 : Raised and blanket bogs
    
  • D2 : Valley mires, poor fens and transition mires
    
    • D2.1 : Valley mires
    • D2.2 : Poor fens and soft-water spring mires
    • D2.3 : Transition mires and quaking bogs
  • D3 : Aapa, palsa and polygon mires
    
  • D4 : Base-rich fens and calcareous spring mires
    
    • D4.1 : Rich fens, including eutrophic tall-herb fens and calcareous flushes and soaks
      • D4.11 : [Schoenus nigricans] fens
      • D4.12 : [Schoenus ferrugineus] fens
      • D4.13 : Subcontinental [Carex davalliana] fens
      •  D4.14 : Pyrenean [Carex davalliana] fens
      • D4.15 : [Carex dioica], [Carex pulicaris] and [Carex flava] fens
      • D4.16 : [Carex nigra] alkaline fens
      •  D4.17 : [Carex saxatilis] fens
      •  D4.18 : [Carex frigida] fens
      •  D4.19 : British [Carex demissa] - [Saxifraga aizoides] flushes
      •  D4.1A : [Eleocharis quinqueflora] fens
      •  D4.1B : Mediterranean and Central Eurasian small sedge fens
      •  D4.1C : [Carex rostrata] alkaline fens
      •  D4.1D : [Scirpus hudsonianus] ([Trichophorum alpinum]) alkaline fens
      •  D4.1E : [Trichophorum cespitosum] alkaline fens
      •  D4.1F : Middle European [Blysmus compressus] fens
      •  D4.1G : Small herb alkaline fens
      •  D4.1H : Calcareous dunal [Juncus] - sedge fens
      •  D4.1I : Tall herb fens
      •  D4.1J : Icelandic [Carex bigelowii] fens
      •  D4.1K : [Sesleria caerulea] fens
      •  D4.1L : Icelandic [Equisetum palustre] fens
      •  D4.1M : [Myrica gale] scrub on rich fens
      • D4.1N : Hard water spring mires
    • D4.2 : Basic mountain flushes and streamsides, with a rich arctic-montane flora
  • D5 : Sedge and reedbeds, normally without free-standing water
    
  • D6 : Inland saline and brackish marshes and reedbeds
    
• E : Grasslands and lands dominated by forbs, mosses or lichens
  
• F : Heathland, scrub and tundra
  
• G : Woodland, forest and other wooded land
  
• H : Inland unvegetated or sparsely vegetated habitats
  
  • H1 : Terrestrial underground caves, cave systems, passages and waterbodies
    
  • H2 : Screes
    
  • H3 : Inland cliffs, rock pavements and outcrops
    
    • H3.1 : Acid siliceous inland cliffs
    • H3.2 : Basic and ultra-basic inland cliffs
    •  H3.3 : Macaronesian inland cliffs
    • H3.4 : Wet inland cliffs
    • H3.5 : Almost bare rock pavements, including limestone pavements
    • H3.6 : Weathered rock and outcrop habitats
  • H4 : Snow or ice-dominated habitats
    
  • H5 : Miscellaneous inland habitats with very sparse or no vegetation
    
  • H6 : Recent volcanic features
    
• I : Regularly or recently cultivated agricultural, horticultural and domestic habitats
  
  • I1 : Arable land and market gardens
    
  • I2 : Cultivated areas of gardens and parks
    
• J : Constructed, industrial and other artificial habitats
  
• X : Habitat complexes