Digitalis ferruginea (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.
As with all species of foxglove, all parts of this plant may cause severe discomfort and vomiting if eaten. Contact with the leaves may also cause an allergic reaction. This plant has gained the Royal Horticultural Society's Award of Garden Merit.