EUNIS habitat type hierarchical view (marine version 2022 & terrestrial version 2021)
The EUNIS habitat classification review is on-going. Four groups are pending review: Inland waters, Wetlands, Constructed, industrial and other artificial habitats and Complexes.-
M : Marine benthic habitats (MA-MG)
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MH : Pelagic water column
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MH1 : Neuston
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MH2 : Completely mixed water column with reduced salinity
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MH3 : Completely mixed water column with full salinity
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MH4 : Partially mixed water column with reduced salinity and medium or long residence time
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MH5 : Unstratified water column with reduced salinity
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MH6 : Vertically stratified water column with reduced salinity
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MH7 : Fronts in reduced salinity water column
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MH8 : Unstratified water column with full salinity
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MH9 : Vertically stratified water column with full salinity
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MHA : Fronts in full salinity water column
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MJ : Ice-associated marine habitats
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N : Coastal habitats
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Q : Wetlands
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R : Grasslands and lands dominated by forbs, mosses or lichens
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R1 : Dry grasslands
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R2 : Mesic grasslands
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R3 : Seasonally wet and wet grasslands
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R4 : Alpine and subalpine grasslands
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R5 : Forest fringes and clearings and tall forb stands
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R51 : Thermophilous forest fringe of base-rich soils
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R52 : Forest fringe of acidic nutrient-poor soils
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R53 : Macaronesian thermophilous forest fringe
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R54 : Pteridium aquilinum vegetation
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R55 : Lowland moist or wet tall-herb and fern fringe
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R56 : Montane to subalpine moist or wet tall-herb and fern fringe
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R57 : Herbaceous forest clearing vegetation
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R6 : Inland salt steppes and salt marshes
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R7 : Sparsely wooded grasslands
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S : Heathland, scrub and tundra
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T : Forest and other wooded land
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U : Inland habitats with no or little soil and mostly with sparse vegetation
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V : Vegetated man-made habitats