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Ariocarpus kotschoubeyanus – Star Rock


Scientific Name

Ariocarpus kotschoubeyanus (Lem.) K.Schum.

Common Names

Star Rock, Living Rock


Anhalonium fissipedum, Anhalonium kotchubeyi, Anhalonium kotschoubeyanum, Anhalonium sulcatum, Ariocarpus macdowellii, Ariocarpus sulcatus, Roseocactus kotschoubeyanus

Scientific Classification

Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Ariocarpus


Ariocarpus kotschoubeyanus is small cactus, growing up to 3 inches (7.5 cm) in diameter (usually much smaller), reaching flowering size at slightly more than 0.5 inch (1.2 cm) in diameter. Plants are flat-topped, growing flush with the surface of the ground. Tubercles are small, triangular, and bear felted groves along their midlines. Flowers open to just over 1 inch (2.5 cm) across, and may range from nearly white or shell pink to bright magenta.

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How to Grow and Care

You should plant your Ariocarpus in soil specifically formulated for cacti. You can buy cactus mix at your local nursery. Do not use generic soil mixes, because they will not provide enough aeration and drainage. Additionally, using a container without a hole, whether it is a pot or a terrarium, is a bad idea for the same reason.

Ariocarpus need a lot of sun. However, in hot, dry areas, they can be damaged by excessive sunlight, so you should either use a shadecloth to limit their sun, or move them out of the sun during the hottest hours of the day. In more temperate areas, direct sunlight is fine. Ariocarpus plants prefer to be kept at room temperature or slightly lower, and in low humidity… – See more at: How to Grow and Care for Ariocarpus.


It is endemic to Mexico .


BACK TO genus Ariocarpus
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