EUNIS habitat type hierarchical view

• A : Marine habitats
  
• 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
    
• 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
    
    • 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
    • G1.5 : Broadleaved swamp woodland on acid peat
    • G1.6 : [Fagus] woodland
    • G1.7 : Thermophilous deciduous woodland
    • G1.8 : Acidophilous [Quercus]-dominated woodland
    • G1.9 : Non-riverine woodland with [Betula], [Populus tremula] or [Sorbus aucuparia]
      • G1.91 : [Betula] woodland not on marshy terrain
      • G1.92 : [Populus tremula] woodland
      •  G1.93 : [Sorbus aucuparia] woodland
      •  G1.94 : Inland dune [Quercus] - [Betula] woods
      •  G1.95 : [Populus tremula] and [Betula] woods with [Sambucus]
    • G1.A : Meso- and eutrophic [Quercus], [Carpinus], [Fraxinus], [Acer], [Tilia], [Ulmus] and related woodland
      • G1.A1 : [Quercus] - [Fraxinus] - [Carpinus betulus] woodland on eutrophic and mesotrophic soils
        •  G1.A11 : Mixed Atlantic [Quercus] forests with [Hyacinthoides non-scripta]
        •  G1.A12 : Aquitanian [Fraxinus] - [Quercus] and [Quercus] - [Carpinus betulus] forests
        • G1.A13 : Sub-Atlantic [Fraxinus] - [Quercus] forests with [Primula elatior]
        • G1.A14 : Sub-Atlantic [Quercus] - [Carpinus betulus] forests with [Stellaria]
        •  G1.A15 : Famennian [Quercus] - [Carpinus betulus] forests
        • G1.A16 : Sub-continental [Quercus] - [Carpinus betulus] forests
        • G1.A17 : Sub-Atlantic calciphile [Quercus] - [Carpinus betulus] forests
        •  G1.A18 : Southern Alpine [Quercus] - [Carpinus betulus] forests
        •  G1.A19 : Pyreneo-Cantabrian [Quercus] - [Fraxinus] forests
        • G1.A1A : Illyrian [Quercus] - [Carpinus betulus] forests
        • G1.A1B : Pannonic [Quercus] - [Carpinus betulus] forests
        • G1.A1C : Southeastern European [Quercus] - [Carpinus betulus] forests
      • G1.A2 : Non-riverine [Fraxinus] woodland
      • G1.A3 : [Carpinus betulus] woodland
      • G1.A4 : Ravine and slope woodland
      • G1.A5 : [Tilia] woodland
      • G1.A6 : Non-riverine [Ulmus] woodland
      • G1.A7 : Mixed deciduous woodland of the Black and Caspian Seas
      •  G1.A8 : Eurosiberian [Acer] woods
    • 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
    
  • 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
    
    •  H1.1 : Cave entrances
    • H1.2 : Cave interiors
      • H1.21 : Troglobiont vertebrate caves
      • H1.22 : Subtroglophile vertebrate caves
      • H1.23 : Troglobiont invertebrate caves
      •  H1.24 : Troglophile invertebrate caves
      •  H1.25 : Subtroglophile invertebrate caves
      •  H1.26 : Caves without vertebrates or invertebrates
    •  H1.3 : Dark underground passages
    • H1.4 : Lava tubes
    • H1.5 : Underground standing waterbodies
    • H1.6 : Underground running waterbodies
    •  H1.7 : Disused underground mines and tunnels
  • 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
    
    • H6.1 : Active volcanic features
    • H6.2 : Inactive 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
      •  J2.31 : Rural commercial units
      •  J2.32 : Rural industrial sites
    • J2.4 : Agricultural constructions
    • J2.5 : Constructed boundaries
    • J2.6 : Disused rural constructions
    •  J2.7 : Rural construction and demolition sites
  • J3 : Extractive industrial sites
    
  • J4 : Transport networks and other constructed hard-surfaced areas
    
  • J5 : Highly artificial man-made waters and associated structures
    
  • J6 : Waste deposits
    
• X : Habitat complexes