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
      • A3.11 : Kelp with cushion fauna and/or foliose red seaweeds
      • A3.12 : Sediment-affected or disturbed kelp and seaweed communities
        •  A3.121 : [Saccorhiza polyschides] and other opportunistic kelps on disturbed upper infralittoral rock
        •  A3.122 : [Laminaria saccharina] and/or [Saccorhiza polyschides] on exposed infralittoral rock
        •  A3.123 : [Laminaria saccharina], [Chorda filum] and dense red seaweeds on shallow unstable infralittoral boulders and cobbles
        •  A3.124 : Dense [Desmarestia] spp. with filamentous red seaweeds on exposed infralittoral cobbles, pebbles and bedrock
        •  A3.125 : Mixed kelps with scour-tolerant and opportunistic foliose red seaweeds on scoured or sand-covered infralittoral rock
        •  A3.126 : [Halidrys siliquosa] and mixed kelps on tide-swept infralittoral rock with coarse sediment
        •  A3.127 : [Polyides rotundus], [Ahnfeltia plicata] and [Chondrus crispus] on sand-covered infralittoral rock
        •  A3.128 : Pontic [Cystoseira barbata] on exposed cobbles, boulders and bedrock mixed with and scoured by sand
      • A3.13 : Mediterranean and Pontic communities of infralittoral algae very exposed to wave action
      •  A3.14 : Encrusting algal communities
      • A3.15 : Frondose algal communities (other than kelp)
    • 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
    
  • 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
    
    • F5.1 : Arborescent matorral
    • F5.2 : Maquis
    • F5.3 : Pseudomaquis
    •  F5.4 : [Spartium junceum] fields
    • F5.5 : Thermo-Mediterranean scrub
  • F6 : Garrigue
    
  • F7 : Spiny Mediterranean heaths (phrygana, hedgehog-heaths and related coastal cliff vegetation)
    
  • F8 : Thermo-Atlantic xerophytic scrub
    
  • F9 : Riverine and fen scrubs
    
    • F9.1 : Riverine scrub
    • F9.2 : [Salix] carr and fen scrub
    • F9.3 : Southern riparian galleries and thickets
      • F9.31 : [Nerium oleander], [Vitex agnus-castus] and [Tamarix] galleries
        •  F9.311 : Oleander galleries
        •  F9.312 : Chaste tree thickets
        • F9.313 : Mediterraneo-Macaronesian tamarisk thickets
        • F9.314 : Irano-Turanian tamarisk thickets
      •  F9.32 : Southwestern Iberian tamujares, formed by [Securinega tinctoria]
      •  F9.33 : Lauriphyllous galleries of the Cordillera Oretana
      •  F9.34 : [Myrica gale] - [Salix] scrub of the Cordillera Oretana
      •  F9.35 : Riparian stands of invasive shrubs
  • FA : Hedgerows
    
  • FB : Shrub plantations
    
• G : Woodland, forest and other wooded land
  
• 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