The approximate corresponding National Vegetation Classification(s) (NVC) to
"Mountain ledge":

CG14 Dryas octopetala-Silene acaulis ledge community
U15 Saxifraga aizoides-Alchemilla glabra banks
U16 Luzula sylvatica-Vaccinium myrtillus tall-herb community
U17 Luzula sylvatica-Geum rivale tall-herb community

The NVC divides communities broadly acccording to habitat, using a letter shorthand to indicate the general habitat type:

  • A = water,
  • CG = calcareous grassland,
  • H = heath,
  • M = mire,
  • MC = maritime cliff,
  • MG = mesotrophic grassland (moderately fertile soil),
  • OV = open vegetation,
  • S = swamp,
  • SD = sand dune,
  • SM = salt marsh,
  • U = upland, and
  • W = wood.

There are 286 communities that are listed here. Sub-communities have not been included. JNCC 2017.