Hypericum grandifolium is a species of flowering plant in the family Hypericaceae. It is native to Madeira and the Canary Islands. It is an evergreen shrub up to 1.8 m in height, with dark green, leathery leaves covered with warty glands, and bright yellow flowers up to 4.5 cm broad. It is an important constituent of the shrub layer in the laurisilva of La Gomera. Hypericum grandifolium has had analgesic properties in studies on mice. Its common name in Spanish is malfurada.