A new flavonoid oligoside, viz., 3-O-[3,4-(di-O-acetyl-beta -xylopyranosyl)
-alpha -rhamnopyranosyl]-7- O-(alpha -rhamnopyranosyl)kaempferol. was isola
ted from the above-ground part of the plant Aconitum barbatum Pers. The pro
duct was identified by spectral methods.