Digitalis ferruginea, the rusty foxglove, is a species of flowering plant in the genus Digitalis of the family Plantaginaceae. It is native to Hungary, Romania, Turkey and the Caucasus. It is a biennial or short-lived perennial plant growing to 1.2 m (3 ft 11 in), which forms a rosette of oblong dark green leaves and carries spikes of brown, tubular flowers in summer.