(+)-lyoniresinol-3-alpha-O-beta-D-glucopyranoside is a lignan that is (+)-lyoniresinol substituted by a beta-D-glucopyranosyl moiety at position 3 via a glycosidic linkage. Isolated from the root barks of Stemmadenia minima and Lycium chinense, it exhibits antimicrobial activities. It has a role as a metabolite, an antibacterial agent and an antifungal agent.