Abstract: Abstract The volatile constituents of Lysimachia capillipes Hemsl. were stydied by means of GC & GC/MS/DS.75 acidic and 74 neutral constituents were identified qualitatively and quantitatively. Hexahydrofarnesylacetone, phenylethyl alcohol and geranylacetone were identified in the neutral consti-tuents. The main components of acidic constituents are palmitic acid, linoleic acid, linolenic acid and some diacids. The acidic and neutral constituents form the peculiar flavor of Lysimachia capillipes.

Key words: Lysimachia capillipes