Two new flavonoids were isolated from the root of Epimedium grandiflorum MORR.(Berberidaceae) and were named epimedoside B and epimedoside C. Their structures were established from their chemical and spectroscopic evidences as 8-isopentenylkaempferol 4'-rhamnoside and 8-isopentenylkaempferol 7-glucoside, respectively. De-O-methyl-β-anhydroicaritin was also isolated from this root.
