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543. Quercus × Warburgii |
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| Authors: | Peter Kerley Tim Upson |
| Abstract: | Summary. Quercus × warburgii A. Camus, the Cambridge Oak, is a semi‐evergreen tree of hybrid origin, possibly between Q. rugosa Née and Q. robur L., and is only known in cultivation. Mature trees in gardens are extremely rare. Its history and cultivation are discussed. |
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