Genus Bocconia is a group of flowering plants that belong to the family Papaveraceae. They are characterized by their large, lobed leaves and panicles of small, greenish flowers. The genus Bocconia has several synonyms, including Macleaya and Chelidonium. These synonyms are commonly used in botanical literature to refer to the same group of plants. Macleaya and Chelidonium are also members of the Papaveraceae family and share similar characteristics with Bocconia. However, Bocconia species are mainly found in the Americas, while Macleaya and Chelidonium are native to Asia and Europe, respectively. Despite their geographical differences, all three genera have medicinal properties and are widely used in traditional medicine.