British NVC community OV4
British NVC community OV4 (Chrysanthemum segetum - Spergula arvensis community) 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 widely distributed, and there are two subcommunities.
Community composition
[edit]The following constant species are found in this community:
- Corn marigold (Chrysanthemum segetum)
- Annual meadow-grass (Poa annua)
- Knotgrass (Polygonum aviculare)
- Corn spurrey (Spergula arvensis)
No rare species are associated with the community.
Distribution
[edit]This is a widely distributed community, most commonly found in western Britain.
Subcommunities
[edit]The two subcommunities are:
- the so-called typical subcommunity
- the Ranunculus repens - Sonchus asper subcommunity
References
[edit]Rodwell, John S, ed. (March 2000). Maritime communities and vegetation of open habitats. British Plant Communities. Vol. 5. Cambridge University Press. ISBN 978-0-521-39167-2.