Flavonoid glycosides from Alchemilla speciosa.

The new flavonol glycosides quercetin 3- O-beta-(2''- O-alpha- L-rhamnopyranosyl)-glucopyranoside uronic acid and kaempferol 3- O-beta-(2''- O-alpha- L-rhamnopyranosyl)-glucopyranoside uronic acid were isolated from the leaves of Alchemilla speciosa Buser together with 13 known flavonol and flavone glycosides and (+)-catechin. The structures were determined by spectroscopic methods.