From the whole plant of Morina nepalensis var. alba Hand.-Mazz., two new acylated flavonoid glycosides (1 and 2), together with four known flavonoid glycosides (3-6), were isolated. Their structures were determined to be quercetin 3-O-[2″′-O-(E)-caffeoyl]-α-L-arabinopyranosyl-(1→6)-β-D-galactopyranoside (monepalin A, 1), quercetin 3-O-[2″′-O-(E)-caffeoyl]-α-L-arabinopyranosyl-(1→6)-β-D-glucopyranoside (monepalin B, 2), quercetin 3-O-α-L-arabinopyranosyl-(1→6)-β-D-galactopyranoside (rumarin, 3), quercetin 3-O-β-D-galactopyranoside (4), quercetin 3-O-β-D-glucopyranoside (5) and apigenin 4^′-O-β-D-glucopyranoside (6). Their structures were determined on the basis of chemical and spectroscopic evidence. Complete assignments of the ¹H and ¹³C NMR spectra of all compounds were achieved from the 2D NMR spectra, including H-H COSY, HMQC, HMBC and 2D HMQC-TOCSY spectra. Copyright © 2002 John Wiley & Sons, Ltd.