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Rudbeckia triloba L. Asteraceae Orange Cone flower. Herbaceous perennial. Distribution: North America. It is named for Olof Rudbeck, father (1630–1702) and son (1660–1740). Olof Rudbeck the Elder was professor of medicine at Uppsala University, and established a botanic garden there. He was the discoverer of the human lymphatic system. His son succeeded his father as professor of medicine, and one of his students was Carl Linnaeus (1707–88) who named the genus Rudbeckia after him and his father. It is a plant which is poisonous to cattle, sheep and pigs with no medicinal uses. Austin (1974) discusses R. hirta, also regarded as a toxic plant. It was used externally by the Cherokee to bathe sores and snakebites and made into a tea for treating diarrhoea. The Seminoles used it for headaches and fever and the Miccosukee for sunstroke and headache. The Cherokee and the Iroquois used it to treat intestinal worms Photographed in the Medicinal Garden of the Royal College of Physicians, London.