The Cactus Boobie (Myrtillocactus geometrizans cv. Fukurokuryuzinboku) is a rare ornamental cultivar known for its distinctive rounded protrusions along its ribs, a unique mutated form of the blue myrtle cactus. Its stems display a powdery blue-green coating that aids in moisture retention, making it a resilient and visually striking addition for collectors and enthusiasts seeking an expert-level specimen.