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
    
  • 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
    
    • A6.1 : Deep-sea rock and artificial hard substrata
    • A6.2 : Deep-sea mixed substrata
    • A6.3 : Deep-sea sand
      •  A6.31 : Communities of bathyal detritic sands with [Grypheus vitreus]
    •  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
    
    • 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
  
  • D1 : Raised and blanket bogs
    
  • D2 : Valley mires, poor fens and transition mires
    
  • D3 : Aapa, palsa and polygon mires
    
  • D4 : Base-rich fens and calcareous spring mires
    
  • 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
  
  • 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
    
    •  FA.1 : Hedgerows of non-native species
    •  FA.2 : Highly-managed hedgerows of native species
    •  FA.3 : Species-rich hedgerows of native species
    •  FA.4 : Species-poor hedgerows of native species
  • FB : Shrub plantations
    
• G : Woodland, forest and other wooded land
  
  • G1 : Broadleaved deciduous woodland
    
    • G1.1 : Riparian and gallery woodland, with dominant [Alnus], [Betula], [Populus] or [Salix]
    • G1.2 : Mixed riparian floodplain and gallery woodland
    • G1.3 : Mediterranean riparian woodland
    • G1.4 : Broadleaved swamp woodland not on acid peat
      • G1.41 : [Alnus] swamp woods not on acid peat
      •  G1.42 : [Quercus] swamp woods
      •  G1.43 : [Populus tremula] swamp woods
      •  G1.44 : Wet-ground woodland of the Black and Caspian Seas
    • G1.5 : Broadleaved swamp woodland on acid peat
    • G1.6 : [Fagus] woodland
    • G1.7 : Thermophilous deciduous woodland
      • G1.71 : Western [Quercus pubescens] woods and related communities
        • G1.711 : Western [Quercus pubescens] woods
        •  G1.712 : Sub-Mediterranean [Quercus petraea-Q. robur] woods
        •  G1.713 : [Quercus palensis] woods
        •  G1.714 : Eu-Mediterranean white oak woods
      •  G1.72 : Cyrno-Sardinian [Quercus pubescens] woods
      • G1.73 : Eastern [Quercus pubescens] woods
      • G1.74 : Italo-Illyrian [Ostrya carpinifolia] sub-thermophilous [Quercus] woods
      • G1.75 : Southeastern sub-thermophilous [Quercus] woods
      • G1.76 : Balkano-Anatolian thermophilous [Quercus] forests
      • G1.77 : Afro-Iberian thermophilous [Quercus] forests
      • G1.78 : [Quercus trojana] woodland
      • G1.79 : Mediterranean [Quercus macrolepis] woodland
      • G1.7A : Steppe [Quercus] woods
      • G1.7B : [Quercus pyrenaica] woodland
      • G1.7C : Mixed thermophilous woodland
      • G1.7D : [Castanea sativa] woodland
    • G1.8 : Acidophilous [Quercus]-dominated woodland
    • G1.9 : Non-riverine woodland with [Betula], [Populus tremula] or [Sorbus aucuparia]
    • G1.A : Meso- and eutrophic [Quercus], [Carpinus], [Fraxinus], [Acer], [Tilia], [Ulmus] and related woodland
    • G1.B : Non-riverine [Alnus] woodland
    • G1.C : Highly artificial broadleaved deciduous forestry plantations
    • G1.D : Fruit and nut tree orchards
  • G2 : Broadleaved evergreen woodland
    
  • G3 : Coniferous woodland
    
    • G3.1 : [Abies] and [Picea] woodland
    • G3.2 : Alpine [Larix] - [Pinus cembra] woodland
    • G3.3 : [Pinus uncinata] woodland
    • 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])
      • G3.71 : Maritime [Pinus pinaster ssp. atlantica] forests
      • G3.72 : [Pinus pinaster ssp. pinaster] ([Pinus mesogeensis]) forests
      • G3.73 : [Pinus pinea] forests
      • G3.74 : [Pinus halepensis] forests
      •  G3.75 : [Pinus brutia] forests
    • 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.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
    
    •  G5.1 : Lines of trees
    •  G5.2 : Small broadleaved deciduous anthropogenic woodlands
    •  G5.3 : Small broadleaved evergreen anthropogenic woodlands
    •  G5.4 : Small coniferous anthropogenic woodlands
    •  G5.5 : Small mixed broadleaved and coniferous anthropogenic woodlands
    • G5.6 : Early-stage natural and semi-natural woodlands and regrowth
    • G5.7 : Coppice and early-stage plantations
    • G5.8 : Recently felled areas
• 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
  
• 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
    • J2.4 : Agricultural constructions
    • J2.5 : Constructed boundaries
    • J2.6 : Disused rural constructions
      •  J2.61 : Derelict spaces of disused rural constructions
    •  J2.7 : Rural construction and demolition sites
  • J3 : 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