English or Pedunculate Oak (Quercus robur). Fissured bark of a mature tree with much burr growth on the trunk. Caused by stress.

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English or Pedunculate Oak (Quercus robur). Fissured bark of a mature tree with much burr growth on the trunk. Caused by stress, injury; virus, mould, insect parasite. Norfolk.

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Size: 5616px × 3744px
Photo credit: © Joe Blossom / Alamy / Afripics
License: Licensed
Model Released: No

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