To identify Gynostemma Pentaphyllum and its adulterant Hemsleya Chinesis,the exterior appearance,micro-structural and ch对葫芦科绞股蓝属的绞股蓝与其易混淆品雪胆属的雪胆进行了外部形态、显微结构和理化特性比较,指出两者可供鉴别的特征。