Pot: 6,5 cm.
It is also known as "Booby cactus", "Titty Cactus" and "Breast Cactus", due to its protruding tubercles, which resemble female breasts. It is a monstrous form of M. geometrizans that is very rare, which is highly appreciated by cactus collectors all over the world. This Japanese cultivar with a blue-light columnar habit hardly branches. Every cactus lover should have a M. geometrizans cv. Ffukurokuryuzinboku in his/her collection.