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The Teesdale Assemblage
Upper Teesdale's position as a British botanical hotspot reflects the unusually large number of rare plant species found here and the fact that plants with very different geographical distributions grow together.
Teesdale Violet: M Rogers
This unusual combination of northern and southern species, and some with a western link, growing together occurs nowhere else in Britain. This ‘Teesdale Assemblage’ of rare plants is considered to have survived continuously since shortly after the last glaciation some 10-12,000 years ago.
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