黄柏为芸香科植物黄皮树Phellodendron chinense Schneid.或黄檗Phellodendron amurense Rupr的干燥树皮。具有清热燥湿、泻水除蒸、解毒疗疮的功效。其混淆品小檗属植物树皮及伪品木蝴蝶树皮已有记载。最近笔者在饮片验收入库时发现一种新的伪黄柏饮片,经鉴定为杨柳科植物山杨Populas davidiana Dode的树皮经加工而成。山杨树皮的中药名为白杨树皮,具有祛风、行瘀、消痰的功效。本文就二者的性状、理化、薄层色谱、紫外吸收光谱等方面进行了比较 Phellodendron is the dry bark of Rutaceae Phellodendron chinense Schneid. or Phellodendron amurense Rupr. With heat dampness, diarrhea in addition to steam, detoxification treatment sore effect. Its confusing products of bark and bogus bark have been documented. Recently, the author discovered a new pseudo-Huangbai piece in the depot-inspection-receipt library, which was identified as the bark of the poplar Populus davidiana Dode. The bark of bark of Populus simonii is called poplar bark, which has the effect of removing winds, phlegm, and eliminating sputum. This article compares the traits, physical and chemical properties, thin layer chromatography, and UV absorption spectra of the two.