Large, slowly developing, globose to cylindrical stems that reach up to 1 meter in height and 20–30 cm in diameter. It naturally forms open, clustering clumps at the base over time.
Exhibits a distinctive pale olive-green or grey-green epidermis, which transitions to an ash-grey or silvery-blue tone as the plant matures.
Features 14 to 22 broad, wavy, and slightly tuberculated ribs. The apex of the plant is heavily armored and cushioned with prominent reddish, orangish, or yellowish-brown wool.
