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Royal Botanic Garden Edinburgh working to save rare and endangered alpine blue-sow thistle

Conservationists at Royal Botanic Garden Edinburgh working to ensure the survival of the rare and endangered alpine blue-sow thistle in Scotland are attempting to establish a new population of the species. The beautiful but elusive flower has now been planted along a small gorge at the Water of Clunie in the centre of the village of Braemar in Aberdeenshire, where it is hoped it will thrive.

Alpine blue-sowthistle (Cicerbita alpina) is an extremely rare plant in the UK, with only four populations known to survive naturally in the wild, on ledges and in gullies on remote mountains in the eastern Cairngorms. It is thought that the plant’s distribution in Scotland may have been wider in the past but has been reduced by grazing. The species is identified in the Scottish Government’s Biodiversity Route Map to 2020 as a target for conservation action.
The research has shown that the genetic variation found within and between the four existing sites is low and the plants are therefore in danger of becoming increasingly inbred. Using seed and root stock collected from the wild in Scotland, RBGE has cultivated plants from different origins at its gardens in Edinburgh.
Plants from two different genetic sources have been used in Braemar in the hope that they will be able to cross-breed at the new location and become genetically more variable.
Dr Aline Finger, RBGE Biodiversity Scientist, said:
“Our aim is to create healthy, self-sustaining populations for the future. We hope that by maximising genetic diversity, this and other planted populations have the genetic basis to be able to cope with current and future environmental challenges. We also want to bring this striking plant closer to the people of Braemar and anyone visiting the area. It is after all an impressively tough but attractive and delicate local species.”
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