History of nomenclature, usage and cultivation of Geranium and Pelargonium species

The genera Geranium and Pelargonium have remained confused for over 200 years, even after Linnaeus (1753) and his binomial system of classification. Both genera were then placed under the genus Geranium and although Sweet (1820) re-classified them under two genera, acceptance by the general public as well as nurserymen is still minimal.