British NVC community OV13

Four subcommunities are recognised:

• the typical subcommunity
• the Matricaria perforata — Poa annua subcommunity
• the Fumaria officinalis — Euphorbia helioscopia subcommunity
• the Urtica dioica — Galium aparine subcommunity

This community is widespread throughout lowland Britain. It is commonly found as a weed vegetation among root and vegetable crops, but is also found among cereal crops and on disturbed ground. Because many of the constituent species are tolerant of commonly used herbicides, it is one of the commonest weed assemblages in intensively farms and market gardens.

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.