Synonyms: Asystasia blumei; Asystasia capensis; Asystasia coromandeliana (heterotypic); Asystasia intrusa; Asystasia ledermannii; Asystasia nemorum; Asystasia plumbaginea; Asystasia quaterna; Dyschoriste biloba; Intrusaria bicolor; Isochoriste javanica; Justicia gangetica (homotypic); Justicia plumbaginea; Ramusia nyctaginea; Ruellia biloba; Ruellia clavata (homotypic); Ruellia coromandeliana; Ruellia digitalis (homotypic); Ruellia filiformis (heterotypic); Ruellia gangetica (homotypic); Ruellia intrusa; Ruellia nemoralis (homotypic); Ruellia nemorum (homotypic); Ruellia obliqua (homotypic); Ruellia secunda (heterotypic); Ruellia secundiflora (homotypic); Ruellia umbrosa (heterotypic); Ruellia variabilis (homotypic); Ruellia zeylanica (homotypic); Tyloglossa longipes (homotypic)