Abstract
The two British oaks are Quercus robur and Q. petraea, the pedunculate and sessile oak, respectively. Both are widespread in woodland and in hedgerows, parks and gardens throughout the country. Hybrids between the two are common. The introduced species Q. cerris (the Turkey oak) and Q. ilex (the evergreen or holm oak) are both common and naturalised in many areas in the south of the country. Q. robur and Q. petraea also occur widely throughout the rest of Europe, where Q. cerris, Q. ilex and other oaks such as Q. suber (the cork oak) and Q. pubescens (the white oak) have a more restricted distribution.KeywordsPowdery MildewLeaf SpotOrnamental TreeEpicormic ShootSweet ChestnutThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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