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Peniocereus (A. Berger) Britton & Rose [Cactaceae-Cactoideae-Pachycereeae]
20 Chihuahua, Colima, Zacatecas, Jalisco, Michoacan, Guerrero, Oaxaca, Chiapas, New Mexico, W Texas, Arizona, Sonora. Nicaragua, Guatemala, Costa Rica, Baja California,Sinaloa, Jalisco, Morelos