Rhoeadales is an order of flowering plants that belongs to the eudicots subclass. There are several synonyms available for the word Rhoeadales, including Papaverales, Parietales, Cruciales, and Buxeales. The term Papaverales is derived from the family name Papaveraceae, which is included in the Rhoeadales order, and it is primarily used in older classifications. Parietales is another synonym that was previously used to denote Rhoeadales, but it is less commonly used nowadays. Cruciales is another equivalent term for Rhoeadales, and it refers to the plant family Cruciferae, which is included in the Rhoeadales order. Lastly, Buxeales is a synonym used for the boxwood family, and it is included in the Rhoeadales order.