Four flavonoide glycosides and (-)-Epicatechin were isolated from the aqueous extracts of dried whole part of Lysimachia clethroides Duby(Primulaceae). They were 3-0-Methyl-quercetin-7-0-[$alpha$-L- rhamnopyranosyl (1-2) glucopyranoside], Quercetin-3-0-$eta$-D-glucopyranoside, Kaempferol-3-0-$eta$-D-glucopyranoside, Kaempferol-3-0-[$alpha$-L-rhamnopyranosyl (1-6)-$eta$-D-glucopyranoside] and (-)-Epicatechin. 3-0-[$alpha$-L-rhamnopyranosyl (1-6)-$eta$-D-glucopyranoside]and (-)-Epicatechin. 3-0-Methyl-quercetin-7-0-[$alpha$-L-rhamnopyranosyl (1-2)-$eta$-D-glucopyranoside] and (-)-Epicatechin were first isolated from this plant. Their structures were elucidated by spectral analysis [$^{1}$H-, $^{13}C-$ NMR, $^{1}$H-$^{1}$H-COSY, DEPT-analysis, HMQC(Heteronuclear multiple quantum coherence), FAB-MS].