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对绞股蓝混淆品乌蔹莓进行药材性状、显微、薄层色谱和紫外—可见光谱鉴别研究，并与绞股蓝作鉴别比较，两者有明显区别，不应混用。
The medicinal properties, microscopic, thin-layer chromatography and ultraviolet-visible spectroscopic identification of Gynura undecimatus, the compound of Gynostemma pentaphyllum, were compared with Gynostemma pentaphyllum, and there were obvious differences between the two. They should not be mixed.