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Range DescriptionThis cactus can be found on the edge of the Chihuahuan Desert, in the state of San Luis Potosí, Mexico. Early observations indicated that this species occurred in a single small area, where it had been accidentally discovered. The original location has become well-known to collectors and the population has been severely depleted, with more than 70% of the plants removed within the late 1990s. However, recent fieldwork has shown additional nearby subpopulations that are at present undisturbed. The decision to place Ariocarpus fissuratus var. hintonii as a subspecies under this species, greatly expanded the known range. The species occurs at elevations raging from 1,500 to 2,000 m asl.