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| Pictorial guide to the flora of the British Isles
| The hybrid Aconitum × stoerkianum often has blue-and-white flowers, with the upper sepal higher than wide. Trearddur (VC52: Anglesey); 2014-09-21 |  |  | The shape of the upper sepal gives species in the genus the name ‘monk’s hood’. Trearddur (VC52: Anglesey); 2014-09-21 |  |  All images copyright © Christopher J. Dixon unless otherwise indicated. | 
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