British NVC community OV23 (Lolium perenne - Dactylis glomerata community) is one of the open habitat

Vegetation of open habitats in the British National Vegetation Classification system

This article gives an overview of the plant communities formed by vegetation of open habitats in the British National Vegetation Classification system.-Introduction:...

 communities 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. It is one of six communities characteristic of gateways, tracksides and courtyards.

This community occurs widely throughout lowland Britain.

There are four subcommunities.

Community composition

The following constant species are found in this community:

• Cock's-foot (Dactylis glomerata
  Dactylis glomerata
  Dactylis glomerata, Cock's-foot and orchard grass, is a common species of grass in the genus Dactylis, native throughout most of Europe, temperate Asia, and northern Africa.-Distribution:...
  
  )
• Perennial rye-grass (Lolium perenne
  Lolium perenne
  Lolium perenne, common name Perennial Ryegrass, is a grass from the family Poaceae. It is native to Europe, Asia and northern Africa, but is widely cultivated and naturalised around the world.-Description:...
  
  )
• Ribwort plantain (Plantago lanceolata
  Plantago lanceolata
  Plantago lanceolata is a species of genus Plantago known by the common names ribwort plantain, English plantain, and narrowleaf plantain. It is a common weed of cultivated land....
  
  )
• Dandelion (Taraxacum officinale
  Taraxacum officinale
  Taraxacum officinale, the common dandelion , is a herbaceous perennial plant of the family Asteraceae . It can be found growing in temperate regions of the world, in lawns, on roadsides, on disturbed banks and shores of water ways, and other areas with moist soils. T...
  
   agg.)

There are no rare species associated with the community.

Distribution

This community occurs widely throughout lowland Britain. It is often found on verges, recreational areas and waste ground that have been re-seeded but only occasionally mown and usually forms a mosaic with other communities, the degree of trampling and disturbance being major determinants in the occurrence of one community or another.

Subcommunities

There are four subcommunities:

• the so-called typical subcommunity
• the Crepis vesicaria - Rumex obtusifolius subcommunity
• the Plantago major - Trifolium repens subcommunity
• the Arrhenatherum elatius - Medicago lupulina subcommunity