Pot: 20 cm.
Also known as "Blue cereus". This cactacea plant, with a columnar habit, can reach up to 1 meter in height. The stem has rounded and slightly tuberculated ribs with sparse downy areoles, from which very long and rigid yellow spines protrude. Its strength is its turquoise blue color, rare in nature, which makes it highly sought after and appreciated by green collectors and cactus lovers. Flowering occurs in summer, only on the plants higher than one meter, blooming, at the apex, with large, white, nocturnal flowers, often with purplish brown shades.