British NVC community OV41

British NVC community OV41 (Parietaria diffusa community) is one of the open habitat communities in the British National Vegetation Classification system. It is one of six communities of crevice, scree and spoil vegetation.

This community is widely distributed in suitable habitats in the southern lowlands of Britain.

There are two subcommunities.

Community composition

One constant species is found in this community:

Pellitory-of-the-wall (Parietaria judaica)

Three rare species are associated with the community:

Wild cabbage (Brassica oleracea)
Yellow whitlowgrass (Draba aizoides)
Nottingham catchfly (Silene nutans)

Distribution

This community is widely distributed in suitable habitats in the southern lowlands of Britain, mainly in south-east England. It is found on sunny ledges and in crevices on limestone quarry rock faces and cliffs and mortared walls; the Daucus carota subcommunity, which is restricted to coastal locations, is found as far west as south Wales.

It is essentially the same as the Parietarietum judaicae assemblage recognised in other parts of Europe.

Subcommunities

There are two subcommunities:

the Homalothecium sericeum - Tortula muralis subcommunity
the Daucus carota subcommunity

References

Rodwell, John S (ed) (March 2000). Maritime communities and vegetation of open habitats. British Plant Communities. vol 5. Cambridge University Press. doi:10.2277/0521391679. ISBN 978-0-521-39167-2.

The British National Vegetation Classification: Vegetation of open habitats

OV1 OV2 OV3 OV4 OV5 OV6 OV7 OV8 OV9 OV10 OV11 OV12 OV13 OV14 OV15 OV16 OV17 OV18 OV19 OV20 OV21 OV22 OV23 OV24 OV25 OV26 OV27 OV28 OV29 OV30 OV31 OV32 OV33 OV34 OV35 OV36 OV37 OV38 OV39 OV40 OV41 OV42

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