British NVC community CG5

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NVC community CG5 ("Bromus erectus - Brachypodium pinnatum" grassland) is one of the calcicolous grassland communities in the British National Vegetation Classification system. It is one of four communities of rank, tussocky grassland associated with low levels of grazing, within the lowland calcicolous grassland group.

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

Community composition

The following constant species are found in this community:
* Tor Grass ("Brachypodium pinnatum")
* Quaking Grass ("Briza media")
* Upright Brome ("Bromus erectus")
* Glaucous Sedge ("Carex flacca")
* Dwarf Thistle ("Cirsium acaule")
* Sheep's Fescue ("Festuca ovina")
* Common Rock-rose ("Helianthemum nummularium")
* Mouse-ear Hawkweed ("Hieracium pilosella")
* Rough Hawkbit ("Leontodon hispidus")
* Bird's-foot Trefoil ("Lotus corniculatus")
* Salad Burnet ("Sanguisorba minor")
* Wild Thyme ("Thymus praecox")

The following rare species are also associated with the community:

* Man Orchid ("Aceras anthropophorum")
* Purple Milk-vetch ("Astragalus danicus")
* Rare Spring-sedge ("Carex ericetorum")
* Slender Bedstraw ("Galium pumilum")
* Musk Orchid ("Herminium monorchis")
* Round-headed Rampion ("Phyteuma tenerum")
* Chalk Milkwort ("Polygala calcarea")
* Pasqueflower ("Pulsatilla vulgaris")
* Bastard-toadflax ("Thesium humifusum")
* Large Thyme ("Thymus pulegioides")

Distribution

This community is found in lowland limestone grassland throughout England.

ubcommunities

There are four subcommunities:
* the so-called typical subcommunity:
* the "Hieracium" spp. 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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