Salt-marsh communities in the British National Vegetation Classification system

This article gives an overview of the salt-marsh communities in the British National Vegetation Classification system.
Introduction.
The salt-marsh communities of the NVC were described in Volume 5 of "British Plant Communities", first published in 2000, along with the other maritime communities (those of shingle strandline and sand-dunes and maritime cliffs) and vegetation of open habitats.
In total, 28 salt-marsh communities have been identified.
The salt-marsh communities consist of four separate subgroups:
Other communities occurring on salt-marshes.
There are a number of other communities which occur on salt-marshes, but are not classified as salt-marsh communities within the NVC. Those listed in "British Plant Communities" are as follows:
List of salt-marsh communities.
The following is a list of the communities that make up this category: