NVC community SD11 (Carex arenaria - Cornicularia aculeata dune community) is one of the 16 sand-dune communities in the British National Vegetation Classification system.
It is one of four communities associated with fixed dunes.
It is a comparatively localised community. There are two subcommunities.
Community composition
The following constant species are found in this community: Sand sedge (Carex arenaria) the lichen Cornicularia aculeata
The following rare species are also associated with the community: Purple Milk-vetch (Astragalus danicus) Grey Hair-grass (Corynephorus canescens)
Distribution
This community is found on the east coast, mostly on the sand-dunes of Norfolk and Suffolk, but also in Aberdeenshire and on the south coast of Kent. It is also found inland, in The Brecks on the Norfolk/Suffolk border.
Subcommunities
There are two subcommunities: the Ammophila arenaria subcommunity the Festuca ovina subcommunity
References
Rodwell, J. S. (2000) British Plant Communities Volume 5 - Maritime communities and vegetation of open habitats (hardback), (paperback)