description Ariocarpus trigonus Overview
Ariocarpus trigonus is a succulent cactus native to the Mexican Sierra Madre Oriental. Its distinctive appearance includes flattened segments and prominent, elongated tubercles. This slow-growing species is notable for its unique morphology and conservation status as endangered. It’s suitable for experienced collectors interested in arid plant life or those seeking a long-lived addition to a collection.
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Ariocarpus trigonus ranks #28 of 210 in the Cactus ranking, behind Blue Torch Cactus (Pilosocereus pachycladus), ahead of Silver Torch Cactus (Cleistocactus strausii).
help Ariocarpus trigonus FAQ
Where does Ariocarpus trigonus grow in the wild?
Ariocarpus trigonus is native to the Sierra Madre Oriental mountain range in northeastern Mexico, particularly in the states of Nuevo León and Tamaulipas. It grows in rocky limestone substrates, often partially buried in the soil to protect itself from intense sun and heat.
How large does Ariocarpus trigonus get?
Ariocarpus trigonus is a slow-growing cactus that typically reaches 15 to 25 cm in diameter at maturity, with elongated triangular tubercles that can measure up to 5 cm long. Plants can take decades to reach full size in cultivation, making large specimens highly prized among collectors.
Is Ariocarpus trigonus legal to buy and own?
Ariocarpus trigonus is listed under CITES Appendix I, which strictly regulates international trade in wild-collected specimens, but nursery-grown plants can be legally purchased and owned. Buyers should verify that any specimen comes from a reputable cultivated source rather than wild collection.
How do you care for Ariocarpus trigonus as a houseplant?
Ariocarpus trigonus requires extremely well-draining mineral-based soil, minimal watering, and bright but indirect light to thrive in cultivation. Overwatering is the most common cause of death, as this species is adapted to very arid conditions and is highly susceptible to root rot.
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