Ariocarpus is a small genus of succulent, subtropical plants of the family Cactaceae.

It comes from limestone hills of Rio Grande in the south of Texas (Ariocarpus fissuratus) and also the north and the center of Mexico (all other species including A. fissuratus forms known as A. loydii and A. fissuratus var. intermedius) with strong sunshine exposures.

Ariocarpus are endangered and quite rare in the wild.

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