Echinocactus platyacanthus
 Echinocactus platyacanthus also known as the giant barrel cactus giant viznaga or biznaga de dulce is a species of cactus (family Cactaceae). It is native to central Mexico in the Chihuahuan Desert. This species is the largest barrel cacti. Their hairs are often used for weaving in Mexico and used to produce a traditional candy by boiling the pith.