British NVC community M4

NVC community M4 (Carex rostrata - Sphagnum recurvum mire) is one of the mire communities in the British National Vegetation Classification system.

It is a localised community of northern and western Britain. There are no subcommunities.

Community composition
The following constant species are found in this community:
 * Bottle Sedge (Carex rostrata)
 * Common Haircap (Polytrichum commune)
 * Feathery Bog-moss (Sphagnum cuspidatum)
 * Flat-topped / Flexuous Bog-mosses S. recurvum

Two rare species are associated with the community:
 * String Sedge (Carex chordorrhiza)
 * Tufted Loosestrife (Lysimachia thrysiflora)

Distribution
This community is found in Cornwall and in various locations in Wales, northern England and Scotland.