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|synonyms_ref = |}} ''Quercus robur'' is commonly known as the English oak or pedunculate oak or French oak. It is native to most of Europe to the Caucasus, and also in Anatolia. The tree is widely cultivated in temperate regions and has escaped into the wild in scattered parts of China and North America.〔(Flora of North America, ''Quercus robur'' Linnaeus, 1753. English oak, pedunculate oak, chêne pédoncule )〕〔(Flora of China, ''Quercus robur'' Linnaeus, 1753. 夏栎 xia li )〕 ==Taxonomy== ''Quercus robur'' (Latin ''quercus'', "oak" + ''robur'' "strength, hard timber") is the type species of the genus (the species by which the oak genus ''Quercus'' is defined), and a member of the white oak section ''Quercus'' section ''Quercus''. The populations in Italy, southeast Europe, and Asia Minor and the Caucasus are sometimes treated as separate species, ''Q. brutia'' Tenore, ''Q. pedunculiflora'' K. Koch and ''Q. haas'' Kotschy respectively. A close relative is the sessile oak (''Q. petraea''), which shares much of its range. ''Q. robur'' is distinguished from this species by its leaves having only a very short stalk long, and by its pedunculate (stalked) acorns. The two often hybridise in the wild, the hybrid being known as ''Quercus × rosacea''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Quercus robur」の詳細全文を読む スポンサード リンク
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