Azureocereus

Pilosocereus azureus is one of the most spectacular columnar tree-like cereus. It ramify at the base or develops a distinct trunk with dozens of erected bluish-silver branches.. This is one of the bluest columnar cacti.

Azureocereus hertlingianus (Browningia hertlingiana) also known as the “Blue Cereus” is a huge columnar cactus sought after by collectors because the juvenile specimens have a beautiful blue frosty covering. It one of the few really blue cacti.