Echinopsis pachanoi (syn. Trichocereus pachanoi)—known as San Pedro cactus—is a fast-growing columnar cactus native to the Andes Mountains at 2,000–3,000 m (6,600–9,800 ft) in altitude.[2][3] It is found in Argentina, Bolivia, Colombia, Chile, Ecuador and Peru,[4][5] and it is cultivated in other parts of the world. Uses for it include traditional medicine and traditional veterinary medicine, and it is widely grown as an ornamental cactus. It has been used for healing and religious…

Origin and Habitat: The species occurs very widely from Mexico (Coahuila, Nuevo León, Querétaro, San Luis Potosí and Tamaulipas), the USA (Texas), Cuba, the Dominican Republic, and Haiti. The typical subspecies prolifera occurs throughout much of the Caribbean.Altitude range: It is found at elevations of 400 to 2,250 metres above sea level.Habitat and Ecology: The species grows in submontane scrub.…

Origin and Habitat: Southern and southwestern Madagascar (Toliara).Habitat & ecology: It is one of the thorny plants of the Madagascan spine forests (along with Pachypodium spp.) found in the island’s semi-arid southwest on crystalline bedrock more or less covered with sandy soil. It grows in areas that may receive no rain for more than a year. It can withstand…