Sclerocactus is a group of compact, hardy cacti native to the deserts of the southwestern United States and northern Mexico. These plants typically have rounded, barrel-shaped or short cylindrical bodies covered with dense, often strongly hooked spines. Their rugged appearance is softened by seasonal flowers, which may appear in shades of yellow, pink, white or purple depending on the species. Slow-growing and adapted to demanding desert conditions, Sclerocactus is valued by collectors for its intricate spination, compact form and distinctive natural character.