Three new abietane diterpenoids which were assigned the structures of 16-hydroxyhorminone, 16-acetoxy horminone, and 6,12,15-trihydroxy-5,8,11,13-abietetriene-7-one were isolated, together with horminone, 16-acetoxy-7-0-acetylhorminone, β-sitosterol, stigmasterol, ursolic acid and palmitic acid from the leaves of Rabdosia serra (maxim) hara.
