EUNIS habitat type hierarchical view

• A : Marine habitats
  
  • A1 : Littoral rock and other hard substrata
    
  • A2 : Littoral sediment
    
  • A3 : Infralittoral rock and other hard substrata
    
    • A3.1 : Atlantic and Mediterranean high energy infralittoral rock
    • A3.2 : Atlantic and Mediterranean moderate energy infralittoral rock
    • A3.3 : Atlantic and Mediterranean low energy infralittoral rock
    •  A3.4 : Baltic exposed infralittoral rock
    •  A3.5 : Baltic moderately exposed infralittoral rock
    •  A3.6 : Baltic sheltered infralittoral rock
    • A3.7 : Features of infralittoral rock
  • A4 : Circalittoral rock and other hard substrata
    
  • A5 : Sublittoral sediment
    
    • A5.1 : Sublittoral coarse sediment
    • A5.2 : Sublittoral sand
    • A5.3 : Sublittoral mud
    • A5.4 : Sublittoral mixed sediments
    • A5.5 : Sublittoral macrophyte-dominated sediment
    • A5.6 : Sublittoral biogenic reefs
    • A5.7 : Features of sublittoral sediments
  • A6 : Deep-sea bed
    
  • A7 : Pelagic water column
    
    • A7.1 : Neuston
    • A7.2 : Completely mixed water column with reduced salinity
    • A7.3 : Completely mixed water column with full salinity
    • A7.4 : Partially mixed water column with reduced salinity and medium or long residence time
    • A7.5 : Unstratified water column with reduced salinity
    • A7.6 : Vertically stratified water column with reduced salinity
    • A7.7 : Fronts in reduced salinity water column
    • A7.8 : Unstratified water column with full salinity
    • A7.9 : Vertically stratified water column with full salinity
    • A7.A : Fronts in full salinity water column
  • A8 : Ice-associated marine habitats
    
• B : Coastal habitats
  
• C : Inland surface waters
  
• D : Mires, bogs and fens
  
• E : Grasslands and lands dominated by forbs, mosses or lichens
  
• F : Heathland, scrub and tundra
  
  • F1 : Tundra
    
  • F2 : Arctic, alpine and subalpine scrub
    
    • F2.1 : Subarctic and alpine dwarf willow scrub
      • F2.11 : Boreo-alpine acidocline snow-patch [Salix herbacea] scrub
      • F2.12 : Boreo-alpine calcicline snow-patch [Salix polaris] scrub
      •  F2.13 : Ponto-Caucasian snow-patch dwarf [Salix] scrub
    • F2.2 : Evergreen alpine and subalpine heath and scrub
      • F2.21 : Alpide dwarf ericoid wind heaths
      • F2.22 : Alpide acidocline [Rhododendron] heaths
      • F2.23 : Southern Palaearctic mountain dwarf [Juniperus] scrub
      •  F2.24 : Alpigenic high mountain [Empetrum - Vaccinium] heaths
      • F2.25 : Boreo-alpine and arctic heaths
      • F2.26 : [Bruckenthalia] heaths
      •  F2.27 : Alpide [Arctostaphylos uva-ursi] and [Arctostaphylos alpinus] heaths
      • F2.28 : Alpide [Rhododendron hirsutum] - [Erica] heaths
      • F2.29 : [Dryas octopetala] mats
      • F2.2A : Alpide high mountain dwarf [Vaccinium] heaths
      • F2.2B : Alpide high mountain [Genista] and [Chamaecytisus] heaths
    • F2.3 : Subalpine deciduous scrub
    • F2.4 : Conifer scrub close to the tree limit
  • F3 : Temperate and mediterranean-montane scrub
    
    • F3.1 : Temperate thickets and scrub
      • F3.11 : Medio-European rich-soil thickets
      •  F3.12 : [Buxus sempervirens] thickets
      • F3.13 : Atlantic poor soil thickets
      • F3.14 : Temperate [Cytisus scoparius] fields
      •  F3.15 : [Ulex europaeus] thickets
      • F3.16 : [Juniperus communis] scrub
      • F3.17 : [Corylus] thickets
      • F3.18 : Inland dune thickets
    • F3.2 : Submediterranean deciduous thickets and brushes
  • F4 : Temperate shrub heathland
    
  • F5 : Maquis, arborescent matorral and thermo-Mediterranean brushes
    
    • F5.1 : Arborescent matorral
    • F5.2 : Maquis
    • F5.3 : Pseudomaquis
    •  F5.4 : [Spartium junceum] fields
    • F5.5 : Thermo-Mediterranean scrub
  • F6 : Garrigue
    
    • F6.1 : Western garrigues
    • F6.2 : Eastern garrigues
    • F6.3 : Illyrian garrigues
    • F6.4 : Black Sea garrigues
    •  F6.5 : Macaronesian garrigues
    • F6.6 : Supra-Mediterranean garrigues
      •  F6.61 : [Lavandula angustifolia] garrigues
      •  F6.62 : [Genista cinerea] garrigues
      •  F6.63 : Ibero-Gallic supra-Mediterranean dwarf-shrub garrigues
      •  F6.64 : Supra-Mediterranean [Buxus sempervirens] scrub
      •  F6.65 : Italian supra-Mediterranean garrigues
      • F6.66 : Balkan peninsula supra-Mediterranean garrigues
    • F6.7 : Mediterranean gypsum scrubs
    • F6.8 : Xero-halophile scrubs
  • 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
  
  •  X01 : Estuaries
    
  •  X02 : Saline coastal lagoons
    
  •  X03 : Brackish coastal lagoons
    
  •  X04 : Raised bog complexes
    
  •  X05 : Snow patches
    
  •  X06 : Crops shaded by trees
    
  •  X07 : Intensively-farmed crops interspersed with strips of natural and/or semi-natural vegetation
    
  •  X09 : Pasture woods (with a tree layer overlying pasture)
    
  •  X10 : Mosaic landscapes with a woodland element (bocages)
    
  •  X11 : Large parks
    
  •  X13 : Land sparsely wooded with broadleaved deciduous trees
    
  •  X14 : Land sparsely wooded with broadleaved evergreen trees
    
  •  X15 : Land sparsely wooded with coniferous trees
    
  •  X16 : Land sparsely wooded with mixed broadleaved and coniferous trees
    
  •  X18 : Wooded steppe
    
  •  X19 : Wooded tundra
    
  •  X20 : Treeline ecotones
    
  •  X22 : Small city centre non-domestic gardens
    
  •  X23 : Large non-domestic gardens
    
  •  X24 : Domestic gardens of city and town centres
    
  •  X25 : Domestic gardens of villages and urban peripheries
    
  •  X27 : Machair complexes
    
  •  X28 : Blanket bog complexes
    
  •  X29 : Salt lake islands
    
  •  X30 : Bentho-pelagic habitats
    
  •  X31 : Mosaics of mobile and non-mobile substrata in the littoral zone
    
  •  X32 : Mosaics of mobile and non-mobile substrata in the infralittoral zone
    
  •  X33 : Mosaics of mobile and non-mobile substrata in the circalittoral zone
    
  •  X34 : Anchihaline caves