目的对杨叶肖槿进行生药学鉴别。方法采用性状鉴别、显微鉴别、理化鉴别的方法。结果杨叶肖槿的性状特征为:叶下表面被鳞毛;茎皮和叶经浸泡后,手搓有黏腻感;显微特征:根韧皮部筛管群与纤维束层状相间排列;茎中柱鞘纤维束帽状;皮层及髓部均具分泌腔;叶主脉维管束外韧型,新月状,散有分泌腔,薄壁细胞内含草酸钙簇晶,上表皮细胞间有黏液细胞分布;叶上表皮无气孔,下表皮气孔密集,不定式,被星状毛;粉末中可见星状毛、分泌腔碎片、不定式气孔和晶鞘纤维;理化特征:醇提液酚类、黄酮类的定性检查均为正反应。结论上述特征可作为杨叶肖槿药材鉴定的参考依据。 Objective To identify the pharmacognosy of Yangye Xiaojiu. Methods traits identification, microscopic identification, physical and chemical identification methods. The results showed that the characteristics of the leaves were as follows: the lower surface of the leaves was covered with scales; the barks and leaves were soaked with hand sticks after being soaked; the microscopic features were that the root phloem sieve tube group and the fiber bundle were arranged in phases; Pericytic sheath bundle; cortical and medullary compartments with secretory lumen; veins of the main veins outside the leaf veins tough, crescent-shaped, scattered with secretory cavity, parenchyma cells containing calcium oxalate clusters, the upper epidermal cells Mucilaginous cells; leaf epidermis without stomata, lower epidermis stomata dense, infinitive, stellate hair; powder visible stellate hair, secretory cavity fragments, adventitious stomata and crystal sheath fibers; Physical and chemical characteristics: alcohol extract of phenol Qualitative examination of flavonoids are positive reactions. Conclusion The above characteristics can be used as a reference for the identification of medicinal materials of Xiao Ye, Yang Ye.