NVC community SD17 (Potentilla anserina - Carex nigra dune-slack community) is one of the 16 sand-dune communities in the British National Vegetation Classification system.
It is one of five communities associated with dune slacks.
It is a very localised community. There are four subcommunities.
Community composition
The following constant species are found in this community:
- Creeping Bent (Agrostis stolonifera)
- Common Sedge (Carex nigra)
- Silverweed (Potentilla anserina)
- Pointed Spear-moss (Calliergon cuspidatum)
No rare species are associated with the community.
Distribution
This community is found in two areas - on the east coast, from Spurn Point to northwest Norfolk, and on the dunes of Liverpool Bay.And north Wales.
Subcommunities
There are three subcommunities:
- the Festuca rubra - Ranunculus repens subcommunity
- the Carex flacca subcommunity
- the Caltha palustris subcommunity
- the Hydrocotyle vulgaris - Ranunculus flammula subcommunity
References
- Rodwell, J. S. (2000) British Plant Communities Volume 5 - Maritime communities and vegetation of open habitats ISBN 0-521-39167-9 (hardback), ISBN 0-521-64476-3 (paperback)
| The British National Vegetation Classification : Shingle, strandline and sand-dunes | |
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