|Scientific name||Agrostis stolonifera – Calliergonella cuspidata – Sand Sedge duneland|
|Common name||Creeping Bent – Pointed Spear-moss – Sand Sedge duneland|
Download full pdf synopsis: DU3B
The vascular vegetation in this dune slack community is chiefly formed of a mixture of Agrostis stolonifera, Potentilla anserina, Carex arenaria, Carex nigra, Ranunculus repens, Trifolium repens and the circular, fleshy leaves of Hydrocotyle vulgaris. Beneath is a characteristically abundant layer of the pointed shoots of Calliergonella cuspidata. Frequently there is some Carex flacca or some patches of the prostrate shrub Salix repens.
This seasonally-inundated community typically occurs towards the rear of coastal duneland systems where it represents stands from the centre of dune slacks.
No sub-communities are described.
The combination of abundant Calliergonella cuspidata and high sedge cover separates this vegetation type from most other duneland communities. Where Salix repens is found, DU3A Salix repens – Lotus corniculatus should also be considered, but that occurs on drier areas. Carex arenaria and Salix repens do not occur in the fens of the FE3 Agrostis stolonifera – Carex nigra group.
Most examples of this vegetation correspond to the EU HD Annex I habitat 2190 Dune slacks
Grazing livestock have access to this community at many sites. Desiccation due to drainage is a problem in some dune slack systems. Other pressures, which may be linked to the drainage, come from agricultural intensification and recreation.