Totem Pole Cactus

Description:

Columnar, basally branching, slow growing up to 12 feet tall. Stems 4 to 8 inches in diameter; 5 to 10 ribs; areoles on the bottom part of the stems are woolly, oval, 0.12 to 0.2 inch wide, with one to 15 spines, 0.1 to 0.3 inch long; upper areoles 0.3 to 0.6 inch wide, 20 to 75 spines , 1.2 to 4 inches long. Its strange, mostly spineless shape can be very attractive for landscape use. It is also less frost resistant, and should be protected below 25°F

Notes:

Taken at the Sonoran Desert Museum