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.

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).