Living Rocks of Mexico
Ariocarpus bravoanus subsp. bravoanus
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Original Publication

Ariocarpus bravoanus Hernandez, H. M. & Anderson, E. F. (1992) Bradleya 10: 1-4.

Distribution (Map)

Extremely limited in distribution, reputedly from one small area in Northern San Luis Potosi, at an altitude of 1500m on a limestone gravel plain amongst creosote bush.



Ariocarpus bravoanus

A. bravoanus, a grafted seedling plant.


Stems simple, subglobose, markedly depressed centrally, to 6(-8.5)cm diam, rising no more than 2.5(-3.5)cm above ground level in habitat, with an extensive mucilage system, tubercles not crowded or basally compressed, adpressed in young individuals, becoming ascending, olive-green or grey-green. triangular in outline, deltate in cross section, adaxially flat but becoming conspicuously concave at maturity, usually longer than broad (to 3 7cm long and 2cm wide basally), asperous at base and irregularly papillose at apex, sometimes with the papillae forming one or two lateral furrows, sharply acute to acuminate apically, and with the edges sharply acute, areoles present in the centre of the adaxial surface of the tubercles, 8-14mm from the tip, rounded  to more or  less elliptic, 2-5mm diam, woolly Flowers c 2.5cm  long, outer  perianth  segments cream  coloured  inner perianth segments

pinkish-magenta, filaments white, anthers yellow; pistil exerted above the stamens, white, style 13mm long, stigma lobes 7, 3mm long Seeds 1-1 5 x 0 7-1.5mm, pyriform or sacciform. black, tuberculate, with a large whitish basal hilum.



The most recently described species of the genus, and also the most limited in distribution, it is closely allied to A. hintonii, these two probably represent extremes of the same taxon, intermediate forms may be discovered in the future. The species is of great interest in that it represents a link between the old Roseocactus subgenus with the areolar fissure, and the A. retusus type with an undivided or fully divided areole. In the wild the plant is extremely endangered, reported as having been virtually collected out from the type locality, despite the current draconian Mexican conservation laws.

Field Numbers

A full listing of all associated field collector data can be found on our field number reference pages.


Ariocarpus bravoanus

Ariocarpus bravoanus in cultivation at CANTE Botanical Gardens, Mexico Photo: Pierre Gambart

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