An external layer, such as bark or rind.
外层外层，如树皮或果皮。
A yellow, powdered crystalline compound, C5H15O2 (OH) 5, synthesized or occurring as a glycoside in the rind and bark of numerous plants, and used medicinally to treat abnormal capillary fragility.
槲皮苷，栎皮酮一种黄色粉末状的晶体化合物c5h 15o2 (oh) 5，人工合成或以糖苷存在于许多植物的果皮及树皮中，在医药中用来治疗不正常的毛细血管脆弱。
Bark or rind; root tissue between the epidermis and the stele.
树皮；位于根表皮和中柱之间的组织。
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