Toothpick Cactus with Two Rosettes – Desert Botanical Garden, Papago Park, Phoenix, Arizona

Stetsonia is a genus of cactus, with the sole species Stetsonia coryne, the toothpick cactus. The plant is native to the deserts of Argentina and Bolivia. Stetsonia coryne grows to a height of 15 to 25 ft (4.6 to 7.6 m) tall. It has white flowers. The genus was named to honor Francis Lynde Stetson, a New York attorney and plant lover.