This cactus grows in my neighbor's garden, and has clumps of needles instead of being covered. It is about 2 feet high.
Two cactus in front are are 5 feet in height.
Ferocactus cylindraceus is a species of barrel cactus which is known by several common names, including California barrel cactus, Desert barrel cactus, and miner's compass. It was first described by George Engelmann in 1853.