A new glucosyl totarane diterpene named rospiglioside, together with seven known abietane and totarane diterpenes identified as ferruginol, sugiol, sugiol acetate, totarol, totarol acetate, 4β-car- boxy-19-nortotarol and 16-hydroxy-4β-carboxy-19-nortotarol have been isolated from the leaves of Retrophyllum rospigliosii (Pilger) C. N. Page (Podocarpaceae). The structure of rospiglioside was estab- lished on the basis of spectroscopic methods, mainly 1D- and 2D- NMR experiments.