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