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
    
  • A6 : Deep-sea bed
    
  • 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
  
• 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
    
    • E4.1 : Vegetated snow-patch
    • E4.2 : Moss and lichen dominated mountain summits, ridges and exposed slopes
    • E4.3 : Acid alpine and subalpine grassland
    • E4.4 : Calcareous alpine and subalpine grassland
    • E4.5 : Alpine and subalpine enriched grassland
  • E5 : Woodland fringes and clearings and tall forb stands
    
    • E5.1 : Anthropogenic herb stands
    • E5.2 : Thermophile woodland fringes
    • E5.3 : [Pteridium aquilinum] fields
    • E5.4 : Moist or wet tall-herb and fern fringes and meadows
    • E5.5 : Subalpine moist or wet tall-herb and fern stands
  • E6 : Inland salt steppes
    
  • E7 : Sparsely wooded grasslands
    
• 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
    
  • 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
    
    •  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
    
    •  H2.1 : Cold siliceous screes
    •  H2.2 : Cold limestone screes
    • H2.3 : Temperate-montane acid siliceous screes
    • H2.4 : Temperate-montane calcareous and ultra-basic screes
    • H2.5 : Acid siliceous screes of warm exposures
    • H2.6 : Calcareous and ultra-basic screes of warm exposures
  • 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
    
• J : Constructed, industrial and other artificial habitats
  
• X : Habitat complexes