Perezia is a genus of flowering plants in the family Asteraceae. It is distributed in South America, especially in the central and southern Andes. Though some species occur at sea level, most Perezia grow in high-elevation mountain habitat. Species are found in most high Andean ecosystems, except for the páramo. Some species are used in traditional medicine in South America. P. multiflora is used to treat postpartum hemorrhage, P. pinnatifida is used as a sedative, and P. purpurata is used as an anti-inflammatory. There are about 30 to 35 species in the genus. Species include: