NVC community CG1 (Festuca ovina - Carlina vulgaris 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 the south-west coastal counterpart of "typical" chalk grassland (community CG2).
It is a comparatively localised community. There are six subcommunities.
The following constant species are found in this community:
Carline Thistle Carlina vulgaris
Cock's-foot Dactylis glomerata
Sheep's Fescue (Festuca ovina)
Mouse-ear Hawkweed (Hieracium pilosella)
Common Bird's-foot Trefoil (Lotus corniculatus)
Ribwort Plantain (Plantago lanceolata)
Salad Burnet (Sanguisorba minor)
Wild Thyme (Thymus praecox)
The following rare species are also associated with the community:
Bristol Rock-cress Arabis stricta
Goldilocks Aster Aster linosyris
Small Hare's-ear Bupleurum baldense
Dwarf Sedge Carex humilis
Dwarf Mouse-ear Cerastium pumilum
Yellow Whitlowgrass Draba aizoides
Portland Spurge Euphorbia portlandica
Early Gentian Gentianella anglica
White Rock-rose Helianthemum apenninum
Hoary Rock-rose Helianthemum canum
the hybrid between White and Hoary Rock-roses Helianthemum × sulfureum
Spotted Cat's-ear Hypochoeris maculata
Somerset Hair-grass Koeleria vallesiana
Spring Cinquefoil Potentilla tabernaemontani
Autumn Squill Scilla autumnalis
Spring Squill Scilla verna
Rock Stonecrop Sedum forsterianum
Silver Ragwort Senecio cineraria
Spiked Speedwell Veronica spicata
Curving Feather-moss Scorpiurium circinatum
Neat Crisp-moss Tortella nitida
This community is found in scattered locations on limestone sites around the south and west coasts of Britain.
There are six subcommunities:
the Carex humilis subcommunity
the Scilla autumnalis - Euphorbia portlandica subcommunity
the Trinia glauca subcommunity
the Helianthemum canum subcommunity
the Koeleria macrantha subcommunity
the Festuca rubra - Scilla verna subcommunity
