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
    
    • A4.1 : Atlantic and Mediterranean high energy circalittoral rock
    • A4.2 : Atlantic and Mediterranean moderate energy circalittoral rock
    • A4.3 : Atlantic and Mediterranean low energy circalittoral rock
    •  A4.4 : Baltic exposed circalittoral rock
    •  A4.5 : Baltic moderately exposed circalittoral rock
    •  A4.6 : Baltic sheltered circalittoral rock
    • A4.7 : Features of circalittoral rock
  • A5 : Sublittoral sediment
    
  • A6 : Deep-sea bed
    
  • A7 : Pelagic water column
    
  • A8 : Ice-associated marine habitats
    
• B : Coastal habitats
  
• C : Inland surface waters
  
  • C1 : Surface standing waters
    
    • C1.1 : Permanent oligotrophic lakes, ponds and pools
    • C1.2 : Permanent mesotrophic lakes, ponds and pools
    • C1.3 : Permanent eutrophic lakes, ponds and pools
    • C1.4 : Permanent dystrophic lakes, ponds and pools
    • C1.5 : Permanent inland saline and brackish lakes, ponds and pools
    • C1.6 : Temporary lakes, ponds and pools
    •  C1.7 : Permanent lake ice
  • 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
  
  • E1 : Dry grasslands
    
    • E1.1 : Inland sand and rock with open vegetation
    • E1.2 : Perennial calcareous grassland and basic steppes
    • E1.3 : Mediterranean xeric grassland
    • E1.4 : Mediterranean tall-grass and [Artemisia] steppes
    • E1.5 : Mediterranean-montane grassland
    • E1.6 : Subnitrophilous annual grassland
    • E1.7 : Closed non-Mediterranean dry acid and neutral grassland
    • E1.8 : Closed Mediterranean dry acid and neutral grassland
    • E1.9 : Open non-Mediterranean dry acid and neutral grassland, including inland dune grassland
    • E1.A : Open Mediterranean dry acid and neutral grassland
    • E1.B : Heavy-metal grassland
    • E1.C : Dry mediterranean lands with unpalatable non-vernal herbaceous vegetation
    •  E1.D : Unmanaged xeric grassland
    •  E1.E : Trampled xeric grasslands with annuals
  • E2 : Mesic grasslands
    
  • E3 : Seasonally wet and wet grasslands
    
  • E4 : Alpine and subalpine grasslands
    
  • E5 : Woodland fringes and clearings and tall forb stands
    
  • E6 : Inland salt steppes
    
  • E7 : Sparsely wooded grasslands
    
• F : Heathland, scrub and tundra
  
• 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.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
    
    • G2.1 : Mediterranean evergreen [Quercus] woodland
    • G2.2 : Eurasian continental sclerophyllous woodland
    • G2.3 : Macaronesian [Laurus] woodland
    • G2.4 : [Olea europaea] - [Ceratonia siliqua] woodland
    • G2.5 : [Phoenix] groves
    •  G2.6 : [Ilex aquifolium] woods
    • G2.7 : Canary Island heath woodland
    • G2.8 : Highly artificial broadleaved evergreen forestry plantations
    • G2.9 : Evergreen orchards and groves
  • 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
  
• I : Regularly or recently cultivated agricultural, horticultural and domestic habitats
  
• J : Constructed, industrial and other artificial habitats
  
• X : Habitat complexes