Melocactus bradypus Cactus bradypus Cactus senilis Cephalophorus senilis Cereus bradypus Cereus senilis Euporteria senilis Pilocereus senilis var. cristatus Pilocereus senilis Cephalocereus senilis Echinocactus senilis Echinocactus staplesiae
Taxonomic data from World Flora Online, accessed June 20, 2024