Barrel Cactus

Ferocactus cylindraceus

Safety note: Long, stout spines can penetrate thick clothing; the hooked central spine makes it extremely difficult to remove from skin or clothing.

The Barrel Cactus is one of the most recognizable cacti of the Sonoran and Mojave Deserts, its cylindrical form often tilting slightly south or southwest — giving it the folk name 'compass cactus.' The tilt maximizes sun exposure in winter while reducing heat absorption in summer. Contrary to popular belief, the pulp contains oxalic acid and is not a reliable source of drinking water. The bright red or yellow flowers ring the top of the plant and attract bees and birds. Aged barrel cacti provide important seed caches for Cactus Wrens.

Habitat

Rocky desert slopes, canyon walls, and bajadas of the Sonoran and Mojave Deserts in southern California, Nevada, and Arizona.

Diet

Flowers visited by bees and hummingbirds; seeds eaten by Cactus Wrens, doves, and rodents; fruits consumed by coyotes.

How common

Common