Pachycereus pringlei
14th June 2015
A very large branched columnar cactus species from the Mexico. It can reach a height of 20m and a spread of about 5m, making it possibly the largest cactus in the world (mine is still young).
References:
Llifle Encyclopedia of Cacti, http://www.llifle.com/Encyclopedia/CACTI/Family/Cactaceae/8572/Pachycereus_pringlei (accessed 21.05.2023).