Stetsonia is a striking South American columnar cactus, represented by the well-known species Stetsonia coryne. Native to regions of Argentina and Bolivia, it develops a tall, upright form with pronounced ribs and long, strong spines that give the plant a dramatic silhouette. Mature specimens may branch and produce large, white flowers that open at night. Stetsonia is suited to collectors and landscapes looking for a bold architectural cactus with a strong desert presence and an unmistakable spine-covered structure.