In total, 21 calcifugous grasslands and montane communities have been identified.
The calcifugous grasslands and montane communities consist of the following groupings:
five grass-dominated communities which group together as "sub-montane calcifugous grasslands"; two of these, U1 and U2 are found throughout Britain, two more U4 and U5 are found throughout upland areas of Scotland, Wales and northern and western England, and one, U3, is localised in southwest England.
a sixth submontane community, U6, dominated by Heath RushJuncus squarrosus
four communities categorised as "calcifugous vegetation of low- and middle-alpine snow-fields", all of which are confined or nearly confined to Scotland: U7, U8, U11 and U12
two moss- and rush-heaths of low- and middle-alpine plateaus U10, which is confined to Scotland, and U9 which is also found in northern England and North Wales
five communities grouped together as "mesotrophic montane swards and herb-rich banks and ledges": U13, U14, U15, U16 and U17; some of these are confined to Scotland while others extend into northern England or North Wales
four calcifuge fern communities, one of which, U20, is widespread; the remaining three (U18, U19 and U21) are confined to upland areas of northern and western Britain
List of calcifugous grasslands and montane communities
The following is a list of the communities that make up this category:
There are over 190 vascular plant species on the Norwegian Arctic archipelago of Svalbard. This figure does not include algae, mosses, and lichens, which are non-vascular plants. For an island so far north, this number of species constitutes an astonishing variety of plant life. Because of the harsh climate and the short growing season, all the plants are slow growing. They seldom grow higher than 10 cm (4 in)
This article gives an overview of the heath communities in the British National Vegetation Classification system.
The mesotrophic grassland communities in the British National Vegetation Classification system were described in Volume 3 of British Plant Communities, first published in 1992, along with the calcicolous grassland communities and the calcifugous grasslands and montane communities.
This article gives an overview of the calcicolous grassland communities in the British National Vegetation Classification system.
This article gives an overview of the shingle, strandline and sand-dune communities in the British National Vegetation Classification system.
NVC community U6 is one of the calcifugous grassland communities in the British National Vegetation Classification system.
The Caha Mountains are a range of low sandstone mountains situated on the Beara peninsula in south-west County Cork, in Ireland. The highest peak is Hungry Hill, 685 m (2,247 ft) tall. Other notable peaks include Knocknagree, Sugarloaf Mountain, Eskatarriff, Knocknaveacal, Derryclancy, Nareera, Killane Mountain and Baurearagh Mountain.
U6 or U-6 may refer to:
Lambert's Castle is an Iron Age hillfort in the county of Dorset in southwest England. Since 1981 it has been designated as a Site of Special Scientific Interest (SSSI) on account of its geology, archaeology and ecology. The hillfort is designated a scheduled monument together with a bowl barrow, the sites of a post-medieval fair and a telegraph station.
NVC community CG10 is one of the calcicolous grassland communities in the British National Vegetation Classification system. Of the upland group of calcicolous grasslands, it is the only one with a short sward associated with heavy grazing.
British NVC community MG3 is one of the mesotrophic grassland communities in the British National Vegetation Classification system. It is one of four such communities associated with well-drained permanent pastures and meadows.
Hunder Beck Juniper is a Site of Special Scientific Interest in the Teesdale district of south-west County Durham, England. It lies between the Balderhead and Blackton Reservoirs and adjoins the Cotherstone Moor SSSI to the south.
Carex bigelowii is a species of sedge known by the common names Bigelow's sedge, Gwanmo sedge, and stiff sedge. It has an Arctic–alpine distribution in Eurasia and North America, and grows up to 50 centimetres (20 in) tall in a variety of habitats.
The Vatnsmýrin Nature Reserve is a protected moorland in Reykjavík, Iceland. The reserve provides a water source for Tjörnin Lake and is a nesting ground for birds. It borders the Nordic House and the University of Iceland. The area within the Reserve including drains and fences, and measures 37,026 square metres (398,540 sq ft). Eighty-three species of vascular plants are documented. Biodiversity has been inhibited due to invasive animals and plants as well as industrial waste.
Allendale Moors is a Site of Special Scientific Interest (SSSI) in Northumberland, England. The upland moorland ridge site is listed for its heath, flush and upland grassland which provide a habitat for a nationally important assemblage of moorland breeding birds.
Allolee to Walltown is the name given to a Site of Special Scientific Interest (SSSI) in Northumberland, England. The site, which follows the path of a section of Hadrian's Wall, is notable for an unusually wide range of grassland types growing on thin soil above the Whin Sill, a rock formation peculiar to the Northern Pennines.
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