British NVC community MC5 (Armeria maritima - Cerastium diffusum ssp.
diffusum maritime therophyte community) is one of the maritime cliff communities in the British National Vegetation Classification system.
This community is widespread on the western coasts of Britain, and localised on coasts elsewhere.
Six constant species are found in this community: The following rare species are associated with this community: This community is found widely on the coast of the South West Peninsula, and on western coasts of Wales and Scotland.
It is more localised on the eastern coast of Scotland, with one stand recorded from Sussex.