(+)-Epoxysuberosin is a coumarin isolated from Hesperethusa crenulata by Nayar and Bhan from Regional Research Laboratory, India, in 1972. More recently, Smith and Bissember at the University of Tasmania, Australia, isolated epoxysuberosin from the native fuchsia, Correa reflexa, using pressurized hot water extraction. Epoxysuberosin is active against leishmania, but its biological activity is largely unexplored.