Fouquieria formosa is a species of perennial plant in the genus Fouquieria, known by the vernacular names palo santo, rabo de iguana, rosalillo, tlapacon, corona de Cristo and flor de jabon. It is native to central and southern Mexico (Chiapas, Oaxaca, Guerrero, Puebla, Morelos, Michoacán, México State, Distrito Federal, Jalisco).