银柴胡为石竹科植物银柴胡的根。但同科植物旱麦瓶草、苍蝇花、窄叶丝石竹、丝石竹的根也常充作银柴胡入药。本文用紫外光谱法对它们进行鉴别。1.材料银柴胡为石竹科植物Stellaria dichotoma L.var.lanceolata Bge.的根;旱麦瓶草为石竹科植物Silene jenisseensis Willd.的根;苍蝇花为石竹科植物S.fortunei Vis.的根;窄叶丝石竹为石竹科植物Gypsophila licentiana Handmazz的根;丝石竹为石竹科植物G.oldhamiana Miq.的根。 Silver Bupleurum is the root of silver bamboo and Betbus sinensis. However, the roots of the plants of the same family, Mesenterica oleifera, Flyflower, S. oleifera, and Dianthus pilosula are also often used as Yinchaihu as medicine. This article uses ultraviolet spectroscopy to identify them. 1. The material silver Bupleurum is the root of the stone family Phyllostachys sp. Stellaria dichotoma L. var. lanceolata Bge.; the Mesili oleracea is the root of the stone plant Cilene jenisseensis Willd.; the flies flower is the root of the Citenaceae plant S. fortunei Vis. Diabrotica nigra is the root of Gypsophila licentiana Handmazz, a species of caryophyllaceae, and G. oldhamiana Miq. is the root of caryophyllaceae.