Obregonia denegriiOften called the "Artichoke Cactus," Obregonia denegrii is a rare and slow growing gem prized by collectors for its unique, sculpted appearance. Its tightly packed, triangular tubercles form a rosette resembling an artichoke, with a central woolly crown that may produce delicate white flowers. Native to Mexico and highly sought after, this living fossil adds a touch of the extraordinary to any serious cactus collection. Rare and Slow Growing: A highly