Difference and Simple Identification between Panax quinquefolium L. and Radix Ginseng

Objective To prevent phenomena of using Radix Ginseng (dry Radix Ginseng and white sugar Radix Ginseng) instead of Panax quinquefolium L. and to avoid the occurrence of side effects. Methods Panax quinquefolium L and Radix Ginseng were distinguished by their characters and fluorescence identification. Results Fluorescence color was observed by using ultraviolet lamp (254 nm) under the light-shading condition. The hadromestome of Panax quinquefolium L showed amethyst fluorescence, the dry Radix Ginseng showed blue fluorescence, and the white sugar Radix Ginseng showed bright blue fluorescence. Conclusion Fluorometric method can be used to identify Panax quinquefolinm L and Radix Ginseng, This method is simple and easy for spread. Key words: Radix Panacis Quinquefolii ;  Dry Radix Ginseng ;  Fluorescence identification ;