叶片基部下延至叶柄成翼状的药材是A.罗布麻叶 B.石韦 C.蓼大青叶 D.枇杷叶 E.大青叶

作者: tihaiku 人气: - 评论: 0

问题叶片基部下延至叶柄成翼状的药材是

选项 A.罗布麻叶 B.石韦 C.蓼大青叶 D.枇杷叶 E.大青叶

答案 E

解析枇杷叶叶片下表面密被黄色绒毛，革质而脆。蓼大青叶叶柄扁平，偶带膜质托叶鞘。石韦叶片下表面有红棕色星状毛及满布孢子囊群。大青叶叶片基部下延至叶柄成翼状。

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