British NVC community CG2

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NVC community CG2 ("Festuca ovina - Avenula pratensis" grassland) is one of the calcicolous grassland communities in the British National Vegetation Classification system. It is one of three short-sward communities associated with heavy grazing, within the lowland calcicolous grassland group, and is regarded as "typical" chalk grassland.

It is a comparatively widely distributed community. There are four subcommunities.

Community composition

The following constant species are found in this community:
* Meadow Oat-grass ("Avenula pratensis")
* Quaking-grass ("Briza media")
* Glaucous Sedge ("Carex flacca")
* Sheep's Fescue ("Festuca ovina")
* Mouse-ear Hawkweed ("Hieracium pilosella")
* Crested Hair-grass ("Koeleria macrantha")
* Rough Hawkbit ("Leontodon hispidus")
* Fairy Flax ("Linum catharticum")
* Bird's-foot Trefoil ("Lotus corniculatus")
* Ribwort Plantain ("Plantago lanceolata")
* Salad Burnet ("Sanguisorba minor")
* Small Scabious ("Scabiosa columbaria")
* Wild Thyme ("Thymus praecox")

The following rare species are also associated with the community:

* Man Orchid ("Aceras anthropophorum")
* Ground-pine ("Ajuga chamaepitys")
* Purple Milk-vetch ("Astragalus danicus")
* Great Pignut ("Bunium bulbocastanum")
* Rare Spring Sedge ("Carex ericetorum")
* Dwarf Sedge ("Carex humilis")
* Soft-leaved Sedge ("Carex montana")
* Dwarf Mouse-ear ("Cerastium pumilum")
* Tuberous Thistle ("Cirsium tuberosum")
* an eyebright ("Euphrasia pseudokerneri")
* Slender Bedstraw ("Galium pumilum")
* Limestone Bedstraw ("Galium sterneri")
* Early Gentian ("Gentianella anglica")
* Chiltern Gentian ("Gentianella germanica")
* Musk Orchid ("Herminium monorchis")
* Spotted Cat's-ear ("Hypochoeris maculata")
* Wild Candytuft ("Iberis amara")
* Perennial Flax ("Linum perenne" subsp. "anglicum")
* Late Spider-orchid ("Ophrys fuciflora")
* Early Spider-orchid ("Ophrys sphegodes")
* Monkey Orchid ("Orchis simia")
* Burnt Orchid ("Orchis ustulata")
* Oxtongue Broomrape ("Orobanche picridis")
* Round-headed Rampion ("Phyteuma tenerum")
* Dwarf Milkwort ("Polygala amara")
* Chalk Milkwort ("Polygala calcarea")
* Pasqueflower ("Pulsatilla vulgaris")
* Meadow Clary ("Salvia pratensis")
* Field Fleawort ("Senecio integrifolius" ssp. "integrifolius")
* Moon Carrot ("Seseli libanotis")
* Nottingham Catchfly ("Silene nutans")
* Autumn Ladies'-tresses ("Spiranthes spiralis")
* Cut-leaved Germander ("Teucrium botrys")
* Bastard-toadflax ("Thesium humifusum")
* Large Thyme ("Thymus pulegioides")
* Spiked Speedwell ("Veronica spicata")

Distribution

This community is found in lowland limestone grassland throughout England and Wales.

ubcommunities

There are four subcommunities, one of which is subdivided into three variants:
* the "Cirsium acaule - Asperula cynanchica" subcommunity, subdivided into:
** a typical variant
** a "Filipendula vulgaris - Helinathemum nummularium" variant
** a "Pseudoscleropodium purum - Prunella vulgaris" variant
* the "Succisa pratensis - Leucanthemum vulgare" subcommunity
* the "Holcus lanatus - Trifolium repens" subcommunity
* the "Dicranum scoparium" subcommunity

References

* Rodwell, J. S. (1992) "British Plant Communities Volume 3 - Grasslands and montane communities" ISBN 0-521-39166-0 (hardback), ISBN 0-521-62719-2 (paperback)


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