You may recognize this plant from our Moon Cactus - this is the crested version of the Gymnocalycium that we typically use for grafting! You can't miss the recognizable banding pattern on the body, even with its crazy crested growth pattern. These cacti will produce beautiful pink blooms if they get full sun, moderate watering in summer, and stay dry in cold weather.
This plant had the crested part, a large green part and some reddish offshoots. A three for one! Nice!