English: Ruellias.
Spanish: Ipecacuanha-da-flor-roxa.
Genus: 250 species.
Content: glycosides, flavonoids, alkaloids, triterpenoids.
Region: Argentina; Brazil, Guianas, Venezuela.
Habitat: tropical regions and temperate regions; typically Caatinga and Cerrado vegetation
Roots of this plant contains possibly toxic substances.