| OV1 | Viola arvensis-Aphanes microcarpa community |
| OV2 | Briza minor-Silene gallica community |
| OV3 | Papaver rhoeas-Viola arvensis community |
| OV5 | Digitaria ischaemum-Erodium cicutarium community |
| OV6 | Cerastium glomeratum-Fumaria muralis ssp. boraei 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.