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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MJ : Ice-associated marine habitats
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N : Coastal habitats
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R : Grasslands and lands dominated by forbs, mosses or lichens
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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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U1 : Terrestrial underground caves, cave systems, passages and waterbodies
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U2 : Screes
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U3 : Inland cliffs, rock pavements and outcrops
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U31 : Boreal and arctic siliceous inland cliff
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U32 : Temperate high-mountain siliceous inland cliff
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U33 : Temperate, lowland to montane siliceous inland cliff
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U34 : Mediterranean siliceous inland cliff
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U35 : Boreal and arctic base-rich inland cliff
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U36 : Temperate high-mountain base-rich inland cliff
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U37 : Temperate, lowland to montane base-rich inland cliff
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U38 : Mediterranean base-rich inland cliff
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U39 : Boreal ultramafic inland cliff
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U3A : Temperate ultramafic inland cliff
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U3B : Mediterranean ultramafic inland cliff
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U3C : Macaronesian inland cliff
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U3D : Wet inland cliff
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U3E : Limestone pavement