Some Additional Info
Trichocereus (except for bridgesii / Bolivian Torch) are very hardy and weather tolerant. Trichocereus pachanoi can handle temps as low as -9c for very short periods.
Native to South America, the earliest evidence of San Pedro was found in Peru, specifically, the Guitarrero cave of the Callejón de Huaylas valley. They are natively found in the Andes Mountains at altitude levels around 2000m – 3000m. San Pedro (the class of Trichocereus) is also found in regions like Argentina, Bolivia, Colombia, Chile, Ecuador, Peru, and Venezuela.
Trichocereus pachanoi are night bloomers with these gorgeous flowers doing their thing at night, you have to be quick or you will miss the event :-). A flower event is a special event as it can take anywhere from 5 years to 8 years for an adult plant to produce a flower. When they do, you do your happy dance, thank the cactus Gods, snap a million pics, harvest the pollen, and wait for the next event.
Synonyms
- Echinopsis pachanoi
- San Pedro Cactus
- Wachuma
Locality
Trichocereus bridgesii is native to Bolivia, where it grows in the dry Andean valleys.History and Taxonomy
The species was originally published as Cereus bridgesii by German botanist Joseph zu Salm-Reifferscheidt-Dyck, usually cited as Salm-Dyck, in 1850. His original account records that English botanist and plant collector Thomas Bridges brought the plant from Bolivia in 1846. The name bridgesii was given in his honour. Britton and Rose transferred the species to the genus Trichocereus in 1920, creating the familiar name Trichocereus bridgesii. Following the later reclassification of Trichocereus into Echinopsis, the species became Echinopsis lageniformis. It could not be called Echinopsis bridgesii because that name had already been used for a different Bolivian cactus. Echinopsis lageniformis is the currently accepted botanical name, although Trichocereus bridgesii remains firmly established among growers and collectors, many of whom still refuse to bow to the great Echinopsis takeover!Synonyms
- Echinopsis lageniformis
- Bolivian Torch Cactus
- Cereus bridgesii var. lageniformis
- Trichocereus bridgesii var. lageniformis
- Wachuma Bolivia
- Achuma Bolivia










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