Ariocarpus bravoanus Origin and Habitat: Limited to few very small areas within the state of San Luis Potosí. The plant was discovered accidentally in soil removed whilst extracting a specimen of a larger species by Hector Hernández of UNAM whilst collecting cacti for a herbarium project. The extent of occurrence for Ariocarpus bravoanus is about 2,000 km², the population is severely fragmented. The species population exceeds 10,000 individuals in several distinct colonies comprising more than fourteen locations.
Ariocarpus bravoanus Altitude range: The species occurs at elevations raging from 1,500 to 2,000 metres above sea level.
Habitat: This species grows in xerophytic shrubland on a limestone gravel plain amongst creosote bush. In the dry season the plants shrivel and almost disappear under the level of the soil. The habitat is locally classified as matorral desértico micrófilo (Rzedowski 1978). In the wild the plant is extremely endangered, and there is continuing decline due to the impacts of illegal collection, agricultural activities and other human disturbance. The type locality was systematically stripped by locals collecting the plants for sale and all the plants have been virtually collected out. Some localities are still untouched, but should collectors find these. Local people also use several ariocarpus species, including A. bravoanus, for medicinal purposes.
Ariocarpus bravoanus Cultivation and Propagation: Need regular water in summer but very prone to rot other times of the year, Moderate water in spring an autumn, no water in winter. Full sun, half shade.