British NVC community W7

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NVC community W7 (

communities in the British National Vegetation Classification system; it is one of seven woodland communities in the NVC classed as "wet woodlands
".

Community composition

Alder is often not as abundant as in the previous types. Ash and/or silver birch are frequent with mixtures of common sallow, hazel and hawthorn in the

shrub layer
. Ground flora includes meadow sweet, yellow pimpernel, lady fern, rough stalked meadow grass, creeping soft grass, creeping buttercup and/or golden saxifrage. These are found on base rich flushes with gleyed mineral soils.

Distribution

It is the commonest alder carr in upland woods; it does occur in the lowlands but often in a rather fragmentary fashion along streams.

References