This article gives an overview of the plant communities formed by vegetation of open habitats in the British National Vegetation Classification

British National Vegetation Classification

The British National Vegetation Classification or NVC is a system of classifying natural habitat types in Great Britain according to the vegetation they contain....

 system.

Introduction

The open habitat communities of the NVC were described in Volume 5 of British Plant Communities, first published in 2000, along with the three groups of maritime communities (shingle, strandline and sand-dune communities, salt-marsh communities

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 and...

 and maritime cliff communities

Maritime cliff communities in the British National Vegetation Classification system

This article gives an overview of the maritime cliff communities in the British National Vegetation Classification system.-Introduction:The maritime cliff communities of the NVC were described in Volume 5 of British Plant Communities, first published in 2000, along with the other maritime...

).

In total, 42 open habitat communities have been identified.

The open habitat communities consist of eight separate subgroups:

• six arable weed and trackside communities of light, less-fertile acid soils (OV1
  British NVC community OV1
  British NVC community OV1 is one of the open habitat communities in the British National Vegetation Classification system. It is one of six arable weed and track-side communities of light, less-fertile acid soils.It is a widely-distributed community...
  
  , OV2
  British NVC community OV2
  British NVC community OV2 is one of the open habitat communities in the British National Vegetation Classification system. It is one of six arable weed and track-side communities of light, less-fertile acid soils....
  
  , OV3
  British NVC community OV3
  British NVC community OV3 is one of the open habitat communities in the British National Vegetation Classification system. It is one of six arable weed and track-side communities of light, less-fertile acid soils.It is a widespread community...
  
  , OV4, OV5 and OV6
  British NVC community OV6
  British NVC community OV6 is one of the open habitat communities in the British National Vegetation Classification system. It is one of six arable weed and track-side communities of light, less-fertile acid soils.It is a widespread community...
  
  )
• eight arable weed and wasteland communities of fertile loams and clays (OV7
  British NVC community OV7
  British NVC community OV7 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV8
  British NVC community OV8
  British NVC community OV8 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV9
  British NVC community OV9
  British NVC community OV9 is one of the open habitat communities in the British National Vegetation Classification system. It is one of eight arable weed and wasteland communities of fertile loams and clays.It is a widely-distributed community...
  
  , OV10
  British NVC community OV10
  British NVC community OV10 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV11
  British NVC community OV11
  British NVC community OV11 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV12
  British NVC community OV12
  British NVC community OV12 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV13
  British NVC community OV13
  British NVC community OV13 is one of the open habitat communities in the British National Vegetation Classification system...
  
   and OV14
  British NVC community OV14
  British NVC community OV14 is one of the open habitat communities in the British National Vegetation Classification system...
  
  )
• three arable weed communities of light, limey soils (OV15
  British NVC community OV15
  British NVC community OV15 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV16
  British NVC community OV16
  British NVC community OV16 is one of the open habitat communities in the British National Vegetation Classification system...
  
   and OV17
  British NVC community OV17
  British NVC community OV17 is one of the open habitat communities in the British National Vegetation Classification system...
  
  )
• six gateway, trackside and courtyard communities (OV18
  British NVC community OV18
  British NVC community OV18 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV19
  British NVC community OV19
  British NVC community OV19 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV20
  British NVC community OV20
  British NVC community OV20 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV21
  British NVC community OV21
  British NVC community OV21 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV22
  British NVC community OV22
  British NVC community OV22 is one of the open habitat communities in the British National Vegetation Classification system...
  
   and OV23
  British NVC community OV23
  British NVC community OV23 is one of the open habitat communities in the British National Vegetation Classification system...
  
  )
• four tall-herb weed communities (OV24
  British NVC community OV24
  British NVC community OV24 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV25
  British NVC community OV25
  British NVC community OV25 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV26
  British NVC community OV26
  British NVC community OV26 is one of the open habitat communities in the British National Vegetation Classification system...
  
   and OV27
  British NVC community OV27
  British NVC community OV27 is one of the open habitat communities in the British National Vegetation Classification system...
  
  )
• five communities typical of periodically inundated habitats (OV28, OV29, OV30, OV32 and OV33)
• four dwarf-rush communities of ephemeral ponds (OV31, OV34, OV35 and OV36)
• six communities of crevice, scree and spoil vegetation (OV37
  British NVC community OV37
  British NVC community OV37 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV38
  British NVC community OV38
  British NVC community OV38 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV39
  British NVC community OV39
  British NVC community OV39 is one of the open habitat communities in the British National Vegetation Classification system...
  
  , OV40, OV41
  British NVC community OV41
  British NVC community OV41 is one of the open habitat communities in the British National Vegetation Classification system...
  
   and OV42
  British NVC community OV42
  British NVC community OV42 is one of the open habitat communities in the British National Vegetation Classification system...
  
  )

List of open habitat communities

The following is a list of the communities that make up this category:

• OV1 Viola arvensis - Aphanes microcarpa community
  British NVC community OV1
  British NVC community OV1 is one of the open habitat communities in the British National Vegetation Classification system. It is one of six arable weed and track-side communities of light, less-fertile acid soils.It is a widely-distributed community...
  
  

• OV2 Briza minor - Silene gallica community
  British NVC community OV2
  British NVC community OV2 is one of the open habitat communities in the British National Vegetation Classification system. It is one of six arable weed and track-side communities of light, less-fertile acid soils....
  
  

• OV3 Papaver rhoeas - Viola arvensis community
  British NVC community OV3
  British NVC community OV3 is one of the open habitat communities in the British National Vegetation Classification system. It is one of six arable weed and track-side communities of light, less-fertile acid soils.It is a widespread community...
  
  

• OV4 Chrysanthemum segetum - Spergula arvensis community

• OV5 Digitaria ischaemum - Erodium cicutarium community

• OV6 Cerastium glomeratum - Fumaria muralis ssp. boraei community
  British NVC community OV6
  British NVC community OV6 is one of the open habitat communities in the British National Vegetation Classification system. It is one of six arable weed and track-side communities of light, less-fertile acid soils.It is a widespread community...
  
  

• OV7 Veronica persica - Veronica polita community
  British NVC community OV7
  British NVC community OV7 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV8 Veronica persica - Alopecurus myosuroides community
  British NVC community OV8
  British NVC community OV8 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV9 Matricaria perforata - Stellaria media community
  British NVC community OV9
  British NVC community OV9 is one of the open habitat communities in the British National Vegetation Classification system. It is one of eight arable weed and wasteland communities of fertile loams and clays.It is a widely-distributed community...
  
  

• OV10 Poa annua - Senecio vulgaris community
  British NVC community OV10
  British NVC community OV10 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV11 Poa annua - Stachys arvensis community
  British NVC community OV11
  British NVC community OV11 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV12 Poa annua - Myosotis arvensis community
  British NVC community OV12
  British NVC community OV12 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV13 Stellaria media - Capsella bursa-pastoris community
  British NVC community OV13
  British NVC community OV13 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV14 Urtica urens - Lamium amplexicaule community
  British NVC community OV14
  British NVC community OV14 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV15 Anagallis arvensis - Veronica persica community
  British NVC community OV15
  British NVC community OV15 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV16 Papaver rhoeas - Silene noctiflora community
  British NVC community OV16
  British NVC community OV16 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV17 Reseda lutea - Polygonum aviculare community
  British NVC community OV17
  British NVC community OV17 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV18 Polygonum aviculare - Chamomilla suavolens community
  British NVC community OV18
  British NVC community OV18 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV19 Poa annua - Matricaria perforata community
  British NVC community OV19
  British NVC community OV19 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV20 Poa annua - Sagina procumbens community
  British NVC community OV20
  British NVC community OV20 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV21 Poa annua - Plantago major community
  British NVC community OV21
  British NVC community OV21 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV22 Poa annua - Taraxacum officinale community
  British NVC community OV22
  British NVC community OV22 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV23 Lolium perenne - Dactylis glomerata community
  British NVC community OV23
  British NVC community OV23 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV24 Urtica dioica - Galium aparine community
  British NVC community OV24
  British NVC community OV24 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV25 Urtica dioica - Cirsium arvense community
  British NVC community OV25
  British NVC community OV25 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV26 Epilobium hirsutum community
  British NVC community OV26
  British NVC community OV26 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV27 Epilobium angustifolium community
  British NVC community OV27
  British NVC community OV27 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV28 Agrostis stolonifera - Ranunculus repens community

• OV29 Alopecurus geniculatus - Rorippa palustris community

• OV30 Bidens tripartita - Polygonum amphibium community

• OV31 Rorippa palustris - Filaginella uliginosa community

• OV32 Myosotis scorpioides - Ranunculus sceleratus community

• OV33 Polygonum lapathifolium - Poa annua community

• OV34 Allium schoenoprasum - Plantago maritima community

• OV35 Lythrum portula - Ranunculus flammula community

• OV36 Lythrum hyssopifolia - Juncus bufonius community

• OV37 Festuca ovina - Minuartia verna community
  British NVC community OV37
  British NVC community OV37 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV38 Gymnocarpium robertianum - Arrhenatherum elatius community
  British NVC community OV38
  British NVC community OV38 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV39 Asplenium trichomanes - Asplenium ruta-muraria community
  British NVC community OV39
  British NVC community OV39 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV40 Asplenium viride - Cystopteris fragilis community

• OV41 Parietaria diffusa community
  British NVC community OV41
  British NVC community OV41 is one of the open habitat communities in the British National Vegetation Classification system...
  
  

• OV42 Cymbalaria muralis community
  British NVC community OV42
  British NVC community OV42 is one of the open habitat communities in the British National Vegetation Classification system...