Scientific name Agrostis stolonifera – Juncus gerardii saltmarsh
Common name Creeping Bent – Saltmarsh Rush saltmarsh
Community code SM6D

 

SM6D: Agrostis stolonifera – Juncus gerardii saltmarsh  SM6D map: Agrostis stolonifera – Juncus gerardii saltmarsh

Download full pdf synopsis: SM6D

 

Vegetation

Juncus gerardii tends to dominate this saltmarsh community, and is accompanied as a constant by Glaux maritima and Agrostis stolonifera. Plantago maritima, Triglochin maritimum and Festuca rubra are all frequent species, while Aster tripolium, Armeria maritima and Leontodon autumnalis occasionally grow within this community. The Juncus can sometimes lodge to form distinctive fan-shaped patterns in the marsh.

 

Ecology

This is an upper marsh community that is infrequently inundated. Conditions are base-rich.

 

Sub-communities

No sub-communities have been described for this community.

 

Similar communities

Juncus gerardii is also a prominent plant within the quite similar community SM2B Festuca rubra – Juncus gerardii saltmarsh, but there Festuca rubra is both more frequent and more abundant, while Agrostis stolonifera is somewhat less so.

 

Conservation value

Almost all examples of this vegetation qualify as EU Annex I habitat 1330 Atlantic salt meadows. It is typically a species-poor community, but supports several specialist species.

 

Management

The main threat to this saltmarsh community is probably grazing by livestock. Sea-level rises as a result of climate change could potentially have an impact, particularly in areas susceptible to coastal squeeze.