喬木（樹高10-25m，胸徑15-40cm）
Tree ((height10-25m, Diameter at breast height15-40cm
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樹皮薄（皮厚不足5mm）
Bark thickness (thickness <5mm)
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外皮平滑
Outer bark smooth
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內皮石細胞粒狀
Stone cell of bark grains-like
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材表網紋槽棱
Process and fusiform fissures net-like in log surface
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中國西南
Southwest China
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中國東南沿海
Southeast China
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黃河中下游
Middium, lower reaches of Huanghe River
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長江中下游
Middium, lower reaches of Yangze River
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長江以南各省區(qū)
Each province, region in south of Yangze River
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