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
    
  • A6 : Deep-sea bed
    
    • A6.1 : Deep-sea rock and artificial hard substrata
    • A6.2 : Deep-sea mixed substrata
    • A6.3 : Deep-sea sand
    •  A6.4 : Deep-sea muddy sand
    • A6.5 : Deep-sea mud
    • A6.6 : Deep-sea bioherms
    • A6.7 : Raised features of the deep-sea bed
    • A6.8 : Deep-sea trenches and canyons, channels, slope failures and slumps on the continental slope
    • A6.9 : Vents, seeps, hypoxic and anoxic habitats of the deep sea
  • A7 : Pelagic water column
    
  • A8 : Ice-associated marine habitats
    
• B : Coastal habitats
  
• C : Inland surface waters
  
  • C1 : Surface standing waters
    
  • C2 : Surface running waters
    
  • C3 : Littoral zone of inland surface waterbodies
    
• 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
    
  • F3 : Temperate and mediterranean-montane scrub
    
  • F4 : Temperate shrub heathland
    
  • F5 : Maquis, arborescent matorral and thermo-Mediterranean brushes
    
  • 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
  
  • G1 : Broadleaved deciduous woodland
    
  • G2 : Broadleaved evergreen woodland
    
  • G3 : Coniferous woodland
    
    • G3.1 : [Abies] and [Picea] woodland
      • G3.11 : Neutrophile medio-European [Abies] forests
      • G3.12 : Calciphilous [Abies alba] forests
      • G3.13 : Acidophilous [Abies alba] forests
      •  G3.14 : Corsican [Abies alba] forests
      •  G3.15 : Southern Apennine [Abies alba] forests
      • G3.16 : Moesian [Abies alba] forests
      • G3.17 : Balkano-Pontic [Abies] forests
      • G3.18 : Aegean [Abies] forests
      • G3.19 : [Abies pinsapo] forests
      •  G3.1A : Relict [Abies nebrodensis] stands
      • G3.1B : Alpine and Carpathian subalpine [Picea] forests
      • G3.1C : Inner range montane [Picea] forests
      • G3.1D : Hercynian subalpine [Picea] forests
      • G3.1E : Southern European [Picea abies] forests
      • G3.1F : Enclave [Picea abies] forests
      •  G3.1G : [Picea omorika] forests
      •  G3.1H : [Picea orientalis] forests
      • G3.1I : [Abies] reforestation
      •  G3.1J : [Picea abies] reforestation
      •  G3.1K : Serpentine [Abies alba] forests [G3.1K Serpentine [Abies alba] forests Serpentine [Abies alba] forests
    • G3.2 : Alpine [Larix] - [Pinus cembra] woodland
    • G3.3 : [Pinus uncinata] woodland
      • G3.31 : [Pinus uncinata] forests with [Rhododendron ferrugineum]
      • G3.32 : Xerocline [Pinus uncinata] forests
      •  G3.33 : [Pinus uncinata] reforestation
    • G3.4 : [Pinus sylvestris] woodland south of the taiga
    • G3.5 : [Pinus nigra] woodland
    • G3.6 : Subalpine mediterranean [Pinus] woodland
    • G3.7 : Lowland to montane mediterranean [Pinus] woodland (excluding [Pinus nigra])
    • G3.8 : Canary Island [Pinus canariensis] woodland
    • G3.9 : Coniferous woodland dominated by [Cupressaceae] or [Taxaceae]
    • G3.A : [Picea] taiga woodland
    • G3.B : [Pinus] taiga woodland
    • G3.C : [Larix] taiga woodland
    • G3.D : Boreal bog conifer woodland
      • G3.D1 : Boreal [Pinus sylvestris] bog woods
      • G3.D2 : Boreal sphagnum [Pinus sylvestris] fen woods
      •  G3.D3 : Boreal brown moss [Pinus sylvestris] fen woods
      • G3.D4 : Boreal [Picea] and [Picea] - [Betula] fen and bog woods
      • G3.D5 : Boreal [Picea] swamp woods
    • G3.E : Nemoral bog conifer woodland
    • G3.F : Highly artificial coniferous plantations
  • G4 : Mixed deciduous and coniferous woodland
    
  • G5 : Lines of trees, small anthropogenic woodlands, recently felled woodland, early-stage woodland and coppice
    
• 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
    
  • 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
    
    • I2.1 : Large-scale ornamental garden areas
    • I2.2 : Small-scale ornamental and domestic garden areas
    •  I2.3 : Recently abandoned garden areas
• J : Constructed, industrial and other artificial habitats
  
  • J1 : Buildings of cities, towns and villages
    
  • J2 : Low density buildings
    
    •  J2.1 : Scattered residential buildings
    •  J2.2 : Rural public buildings
    • J2.3 : Rural industrial and commercial sites still in active use
      •  J2.31 : Rural commercial units
      •  J2.32 : Rural industrial sites
    • J2.4 : Agricultural constructions
      •  J2.41 : Agricultural buildings (not isolated)
      •  J2.42 : Isolated agricultural buildings
      •  J2.43 : Greenhouses
    • J2.5 : Constructed boundaries
    • J2.6 : Disused rural constructions
    •  J2.7 : Rural construction and demolition sites
  • J3 : Extractive industrial sites
    
    •  J3.1 : Active underground mines
    •  J3.2 : Active opencast mineral extraction sites, including quarries
    •  J3.3 : Recently abandoned above-ground spaces of extractive industrial sites
  • J4 : Transport networks and other constructed hard-surfaced areas
    
    •  J4.1 : Disused road, rail and other constructed hard-surfaced areas
    •  J4.2 : Road networks
    •  J4.3 : Rail networks
    •  J4.4 : Airport runways and aprons
    •  J4.5 : Hard-surfaced areas of ports
    •  J4.6 : Pavements and recreation areas
    •  J4.7 : Constructed parts of cemeteries
  • J5 : Highly artificial man-made waters and associated structures
    
  • J6 : Waste deposits
    
• X : Habitat complexes