British NVC community OV20

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

This community is widely distributed throughout Britain. There are two subcommunities.

[edit] Community composition

Two constant species are found in this community, Annual Meadow-grass (Poa annua) and Procumbent Pearlwort (Sagina procumbens). No rare species are associated with the community.

[edit] Distribution

This community is widely distributed in lowland areas of Britain, and upland fringes.

[edit] Subcommunities

There are two subcommunities:

  • the so-called typical subcommunity
  • the Lolium perenne - Chamomilla suaveolens subcommunity


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The British National Vegetation Classification

Woodlands and scrub • Mires • Heaths • Mesotrophic grasslands • Calcicolous grasslands • Calcifugous grasslands and montane communities • Aquatic communities • Swamps and tall-herb fens • Saltmarshes • Shingle, strandline and sand-dunes • Maritime cliff communities • Vegetation of open habitats
Full list of communities • Terminology • British Plant Communities • List of constant species • List of rare species

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