NVC community W9 (Fraxinus excelsior - Sorbus aucuparia - Mercurialis perennis woodland) is one of the woodland communities in the British National Vegetation Classification system. It is one of the six communities falling in the "mixed deciduous and oak/birch woodlands" group.
This is a community of northern and western Britain, particularly widespread in Scotland and Wales. There are two subcommunities.
Ten constant species are found in this community:
The following rare species are also associated with the community:
This community is widespread throughout upland areas in northern and western Britain, where is replaces community W8. It is particularly well-represented in Scotland and Wales, and the far northern counties of England. It has also been recorded at a single site in Devon.
There are two subcommunities:
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