EUNIS habitat type hierarchical view

• A : Marine habitats
  
  • A1 : Littoral rock and other hard substrata
    
    • A1.1 : High energy littoral rock
      • A1.11 : Mussel and/or barnacle communities
      • A1.12 : Robust fucoid and/or red seaweed communities
      • A1.13 : Mediterranean and Black Sea communities of upper mediolittoral rock
      • A1.14 : Mediterranean and Black Sea communities of lower mediolittoral rock very exposed to wave action
      • A1.15 : Fucoids in tide-swept conditions
      • A1.16 : Pontic communities of exposed mediolittoral rock
    • A1.2 : Moderate energy littoral rock
    • A1.3 : Low energy littoral rock
      • A1.31 : Fucoids on sheltered marine shores
        •  A1.311 : [Pelvetia canaliculata] on sheltered littoral fringe rock
        • A1.312 : [Fucus spiralis] on sheltered upper eulittoral rock
        • A1.313 : [Fucus vesiculosus] on moderately exposed to sheltered mid eulittoral rock
        • A1.314 : [Ascophyllum nodosum] on very sheltered mid eulittoral rock
          •  A1.3141 : [Ascophyllum nodosum] on full salinity mid eulittoral rock
            
          •  A1.3142 : [Ascophyllum nodosum] on full salinity mid eulittoral mixed substrata
            
        • A1.315 : [Fucus serratus] on sheltered lower eulittoral rock
        •  A1.316 : Association with [Fucus virsoides]
      • A1.32 : Fucoids in variable salinity
      •  A1.33 : Red algal turf in lower eulittoral, sheltered from wave action
      • A1.34 : Mediterranean communities of lower mediolittoral rock sheltered from wave action
    • A1.4 : Features of littoral rock
  • A2 : Littoral sediment
    
  • A3 : Infralittoral rock and other hard substrata
    
  • A4 : Circalittoral rock and other hard substrata
    
  • A5 : Sublittoral sediment
    
  • A6 : Deep-sea bed
    
  • A7 : Pelagic water column
    
  • A8 : Ice-associated marine habitats
    
    • A8.1 : Sea ice
    • A8.2 : Freshwater ice
      •  A8.21 : Large tabular iceberg
      •  A8.22 : Medium iceberg
      •  A8.23 : Small iceberg
      •  A8.24 : Bergy bit
      •  A8.25 : Growler
    • A8.3 : Brine channels
    • A8.4 : Under-ice habitat
      •  A8.41 : Under-ice habitat in first-year ice
      •  A8.42 : Under-ice habitat in multi-year ice
• B : Coastal habitats
  
• 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
    
    • C3.1 : Species-rich helophyte beds
    • C3.2 : Water-fringing reedbeds and tall helophytes other than canes
    • C3.3 : Water-fringing beds of tall canes
    • C3.4 : Species-poor beds of low-growing water-fringing or amphibious vegetation
    • C3.5 : Periodically inundated shores with pioneer and ephemeral vegetation
    • C3.6 : Unvegetated or sparsely vegetated shores with soft or mobile sediments
    • C3.7 : Unvegetated or sparsely vegetated shores with non-mobile substrates
    •  C3.8 : Inland spray- and steam-dependent habitats
• D : Mires, bogs and fens
  
• E : Grasslands and lands dominated by forbs, mosses or lichens
  
• F : Heathland, scrub and tundra
  
  • F1 : Tundra
    
    • F1.1 : Shrub tundra
    • F1.2 : Moss and lichen tundra
  • F2 : Arctic, alpine and subalpine scrub
    
    • F2.1 : Subarctic and alpine dwarf willow scrub
    • F2.2 : Evergreen alpine and subalpine heath and scrub
    • F2.3 : Subalpine deciduous scrub
    • F2.4 : Conifer scrub close to the tree limit
  • F3 : Temperate and mediterranean-montane scrub
    
  • F4 : Temperate shrub heathland
    
  • F5 : Maquis, arborescent matorral and thermo-Mediterranean brushes
    
    • F5.1 : Arborescent matorral
      • F5.11 : Evergreen [Quercus] matorral
      • F5.12 : [Olea europaea] and [Pistacia lentiscus] matorral
      • F5.13 : [Juniper] matorral
      • F5.14 : [Pinus] matorral
      •  F5.15 : [Tetraclinis articulata] matorral
      •  F5.16 : Deciduous [Quercus] matorral
      • F5.17 : Arid zone matorral
        •  F5.171 : Iberian arid zone [Ziziphus] matorral
      •  F5.18 : [Laurus nobilis] matorral
      •  F5.19 : [Cupressus] matorral
      •  F5.1A : [Zelkova] matorral
    • F5.2 : Maquis
    • F5.3 : Pseudomaquis
    •  F5.4 : [Spartium junceum] fields
    • F5.5 : Thermo-Mediterranean scrub
  • F6 : Garrigue
    
  • F7 : Spiny Mediterranean heaths (phrygana, hedgehog-heaths and related coastal cliff vegetation)
    
  • F8 : Thermo-Atlantic xerophytic scrub
    
  • F9 : Riverine and fen scrubs
    
  • FA : Hedgerows
    
  • FB : Shrub plantations
    
• G : Woodland, forest and other wooded land
  
• H : Inland unvegetated or sparsely vegetated habitats
  
• I : Regularly or recently cultivated agricultural, horticultural and domestic habitats
  
• J : Constructed, industrial and other artificial habitats
  
• X : Habitat complexes