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Ferocactus Britton & Rose [Cactaceae-Cactoideae-Cacteae]
29 S California, Nevada, Utah, Arizona, New Mexico,Texas, Chihuahua, Baja California, Sonora, Michoacan, Oaxaca, Hidalgo, San Louis Potosi, Queretaro, Tamaulipas, Guanajuato, Sinaloa, Jalisco, Coahuila