Whatever happened to the Acorns?
Introduction
The photograph on this page of Whatever happened to the Acorns? by Christine Matthews as part of the Geograph project.
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Image: © Christine Matthews Taken: 1 Oct 2008
I noticed this earlier in the year, but at the time didn't have my camera with me. Then these odd growths were green, but now in place of acorns this oak tree is covered in these odd growths, which could have been caused by gall wasps (Andricus glossulariae).