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''Quercus variabilis'' (Chinese cork oak) is a species of oak in the section ''Quercus'' sect. ''Cerris'', native to a wide area of eastern Asia in China (including Taiwan), Japan, and Korea.〔 == Description == ''Quercus variabilis'' is a medium-sized to large deciduous tree growing to 25–30 m tall with a rather open crown, and thick corky bark with deep fissures and marked by sinuous ridges. The leaves are simple, acuminate, variable in size, 8–20 cm long and 2–8 cm broad, with a serrated margin with each vein ending in a distinctive fine hair-like tooth; they are green above and silvery below with dense short pubescence.〔 The flowers are wind-pollinated catkins produced in mid spring, maturing about 18 months after pollination; the fruit is a globose acorn, 1.5–2 cm diameter, two-thirds enclosed in the acorn cup, which is densely covered in soft 4–8 mm long 'mossy' bristles.〔(Flora of China, ''Quercus variabilis'' Blume, 1850. 栓皮栎 shuan pi li )〕〔(Blume, Carl Ludwig von 1850. Museum Botanicum 1(19): 297 ) in Latin〕 Image:Chinese cork oak foliage and flower.jpg|Foliage and flowers Image:Chinese cork oak bark.jpg|Trunk and bark of Chinese cork oak Image:Quercus variabilis JPG1a.JPG|Chinese cork oak planted at Meise, Belgium 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 variabilis」の詳細全文を読む スポンサード リンク
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