乔木（树高10-25m，胸径15-40cm）
Tree ((height10-25m, Diameter at breast height15-40cm
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树皮厚（皮厚10mm以上）
Bark thickness (thickness above 10mm)
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外皮不规则裂
Outer bark irregular fissured
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内皮石细胞粒状
Stone cell of bark grains-like
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材表平滑
Smooth in log surface
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中国东北、内蒙古
Northeast China. Inner Mongolia
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黄河中下游
Middium, lower reaches of Huanghe River
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