Ariocarpus are desert plants that grow mostly in Mexico.  These geophytes are commonly called “living rocks” due to their ability to mimic the surrounding geology and blend in.

The cultivar "trifinger" was bred to exaggerate the "three finger" look where each tubercle splits into three areoles and tubercles at the tip.  These traits have been noted in wild retusus populations but have been selectively bred by Japanese growers to extremes.

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