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Quercus serrata : ウィキペディア英語版 | Quercus serrata
''Quercus serrata'' is an East Asian species of trees in the beech family known by the common name bao li. It is native to China (including Taiwan), Japan, and Korea.〔(Flora of China, ''Quercus serrata'' Murray, 1784. 枹栎 bao li )〕〔(International Oak Society - Report from the Oak ICRA checklist (''Quercus serrata'') )〕 ==Description== ''Quercus serrata'' is a deciduous oak tree reaching a height of 25 m occupying elevations from 100 to 2000 m. Leaves are up to 17 cm long by 9 cm wide, leathery, elliptical in shape, with serrated margins. Leaves are densely covered with trichomes when young becoming glabrous with age. Petioles are short (3 cm). Flowers are pistillate inflorescences from 1.5 to 3 cm long occurring in March to April. Seeds are oval shaped acorns 1.7 to 2 cm long and take 1 year to mature. A cup with trichomes and triangular shaped scales covers 1/4 to 1/3 of the acorn. Bark is grey or reddish-brown with longitudinal furrows.〔
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