Dierama pulcherrimum Baker Iridaceae. Angel's Fishing rods, African harebell.. Herbaceous perennial. Distribution: South Africa. Said to be used in South African Muthi medicine, but no references found other than it being grown at the Medicinal Garden of the University of Washington and the Royal College of Physicians, London. Photographed in the Medicinal Garden of the Royal College of Physicians, London.