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Trichocereus pachanoi in Bolivia?

When people refer to Trichocereus pachanoi Bolivia, they usually mean populations of Echinopsis pachanoi in Bolivia. But much unlike popular belief, most of those plants are actually closer to Trichocereus bridgesii than to Trichocereus pachanoi. Both of these species are sister species and closely related, but they are not the same species. However, both species can look very much like each other. You can definitely see the difference on flowering plants though. Echinopsis pachanoi usually has brown or black hairs on the flowers, while the hairs on the Bolivian species are often white.

Here are some of the so called Trichocereus pachanoi Bolivia populations that were visited during Sacred Succulents´Field Trips. Most of the plants are labeled Trichocereus aff. pachanoi, what stands for „affinity to Trichocereus pachanoi“. That means that those plants look similar to Trichocereus pachanoi, while they probably are more closely related to Trichocereus bridgesii. Don´t forget that Trichocereus pachanoi is widely cultivated in every South American country today. It´s just that the Bolivian version of Echinopsis pachanoi is Trichocereus bridgesii, which is also called Achuma or Cactus of the Four Winds. The latter has become a catchy marketing phrase for everything that has four ribs, but that has more to do with marketing than ancient history. Nonetheless, this phrase has been used for a four-ribbed Bridgesii type. With that said, many plants can temporarily have four ribs, but usually grow some later on.

Here I will show some photos from the Sacred Succulents Field Trips from Bolivia. All those pics are from  Ben Kamm and Sacredsucculents.com. Please support them to make more Field Trips like those possible!

 BK10512.11 Trichocereus aff. pachanoi, near Cuchucunata,  Cochabamba, Bolivia 

 BK10512.11 Trichocereus aff. pachanoi, near Cuchucunata,  Cochabamba, Bolivia 

 BK10512.11 Trichocereus aff. pachanoi, near Cuchucunata,  Cochabamba, Bolivia 
Trichocereus pachanoi Bolivia

Those plants are relatively spineless, but look pretty typical for Bolivian plants between Trichocereus pachanoi and Trichocereus bridgesii. In my eyes, those are just spineless or relatively spineless forms of Trichocereus bridgesii but you would need to take a look at the flowers to verify. There certainly are some cultivated Pachanois in Bolivia, but they are grown as natural fencing or garden plants are did not evolve over time. Most populations of Echinopsis pachanoi in Bolivia are actually Trichocereus bridgesii.

Trichocereus aff. pachanoi, Arani, Cochabamba, Bolivia 

On this one, you can see the obvious relationship to Trichocereus bridgesii. I originally wrote that it might be related to Trichocereus scopulicola, but it could as well but just another type of Trichocereus bridgesii. But the labeling with aff. pachanoi fits pretty good, though those are all closer related to Trichocereus bridgesii than they are to Trichocereus pachanoi.

Trichocereus aff. pachanoi, Arani, Cochabamba, Bolivia 

Trichocereus pachanoi Bolivia

Trichocereus aff. pachanoi, Arani, Cochabamba, Bolivia  2

Trichocereus pachanoi Bolivia

BK10508.5 T. aff. pachanoi, Tiatako, Cochabamba, Bolivia 

Another version of Trichocereus pachanoi Bolivia, but which is actually closer to Echinopsis lageniformis, aka Trichocereus bridgesii. This one is the most interesting, because it might actually be a relative of Trichocereus scopulicola. But I would need to take a closer look at the rest of the plants. On the second pic, the ribs look very much like the ribs on a Trichocereus scopulicola.

BK10508.5 T. aff. pachanoi, Tiatako, Cochabamba, Bolivia 

BK10508.5 T. aff. pachanoi, Tiatako, Cochabamba, Bolivia 2

BK10508.1 Trichocereus aff. pachanoi, Cerro San Pedro, Cochabamba, Bolivia 2010

BK10508.1 Trichocereus aff. pachanoi, Cerro San Pedro, Cochabamba, Bolivia 2010

BK10508.1 Trichocereus aff. pachanoi, Cerro San Pedro, Cochabamba, Bolivia 2010 2

BK10508.1 Trichocereus aff. pachanoi, Cerro San Pedro, Cochabamba, Bolivia 2010 4

BK10508.1 Trichocereus aff. pachanoi, Cerro San Pedro, Cochabamba, Bolivia 2010 6

Trichocereus bridgesii, Martin Cardenas Botanical Garden, Cochabamba, Bolivia 2010

Trichocereus bridgesii, Martin Cardenas Botanical Garden, Cochabamba, Bolivia 2010

Trichocereus aff. pachanoi, Martin Cardenas Botanical Garden Cochabamba, Bolivia 2010

Very cool Trichocereus growing in Martin Cardenas Botanical Garden in Cochabamba, Bolivia!

Trichocereus aff. pachanoi, Martin Cardenas Botanical Garden Cochabamba, Bolivia 2010

Trichocereus species in Martin Cardenas Botanical Garden Cochabamba, Bolivia

Martin Cardenas is a specialist on peruvian cacti and this is his botanical garden in Chochabamba. He is widely accepted and respected field botanist and it´s really great to see his private garden.

Trichocereus species in Martin Cardenas Botanical Garden Cochabamba, Bolivia

Trichocereus species in Martin Cardenas Botanical Garden Cochabamba, Bolivia 2

Check out our main plant database pages for Trichocereus pachanoi aka Echinopsis pachanoi here:

And Trichocereus bridgesii here:

Also check out our Trichocereus Facebook group here:

https://facebook.com/groups/trichocereus

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BK10508.7 Trichocereus riomizquensis, Totora , Cochabamba, Bolivia

BK10508.7 Trichocereus riomizquensis, Totora , Cochabamba, Bolivia 

Trichocereus riomizquensis BK10508.7 is a very cool Plant! that is obviously related to Trichocereus bridgesii.

Trichocereus riomizquensis is probably partially synonymous with Trichocereus bridgesii or belongs to Trichocereus bridgesii in a wider sense. The latter is not very surprising because both are from Bolivia and grow very close to each other.

Ritter gave CHYLLAS near the Rio Mizque in the province Campero as the type locality of Trichocereus riomizquensus, growing on rocky slopes.

Ritter assigned the FR/Winter seed code (after the name of his sister, who ran his seed business) FR856. After all these years, there are only very few plants of Ritter´s FR856 left which still have their original label intact and if thereanybody out there who grows a plant labeled Trichocereus riomizquensis FR856, please let me know and I will add them to the database! There were also seeds given away in the Sacred Succulents Field Trips and I´d love to see photos of the offspring as well.

BK10508.7 Trichocereus riomizquensis, Totora , Cochabamba, Bolivia

BK10508.7 Trichocereus riomizquensis, Totora , Cochabamba, Bolivia 2

Martin Cardenas Botanical Garden, Cochabamba, Bolivia 2010 – Sacredsucculents.com

If you are interested in Trichocereus riomizquensis, it can´t get any better than seeing the species in field expert Martin Cardenas´garden in Chochabamba. This plant is very unique, but also shows a close connection to Trichocereus bridgesii. I am sure if I was to take a look at the flowers now, I would see a flower that is extremely close to the flower of Trichocereus bridgesii. Buds, flowers and fruit bear white hairs, which can also be see on the notorious PC clone in the United States (which we suspect might be grown from Ritter´s Trichocereus riomizquensis seeds).

Martin Cardenas Botanical Garden, Cochabamba, Bolivia 2010 - Sacredsucculents.com