Pediocactus Britton & Rose ex Britton & A. Brown [Cactaceae-Cactoideae-Cacteae] 6 Arizona, Utah, New Mexico, Washington, Oregon, Idaho, Montana, South Dakota, Wyoming, Colorado, Nevada
California, Nevada, Utah, Arizona, New Mexico, Texas, Sonora, Chihuahua, Coahuila, San Louis Potosi, Puebla, Nuevo Leon, Queretaro, Sinaloa, Nueva Galica