DSC_9703.jpg
Witches' brooms in Silver Birch (Betula pendula) trees are bundles of short twiggy growth caused by infection of the fungus Taphrina betulina. Cranbrook, Kent, England, UK. 11 December 2005.
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 trees are bundles of short twiggy growth caused by infection of the fungus Taphrina betulina. Cranbrook, Kent, England, UK. 11 December 2005.){kind=link}