Argentine Toothpick

The Argentine Toothpick, most commonly known by its Latin name Stetsonia coryne, is a commanding and aptly named columnar cactus. This striking plant is celebrated for its remarkably long, sharp spines, which indeed resemble toothpicks. Native to the arid regions of northwestern Argentina, as well as parts of Bolivia and Paraguay, it thrives in hot, dry climates and well-drained, often rocky soils. As a long-lived perennial, the Argentine Toothpick can grow into a substantial, tree-like specimen, reaching impressive heights of up to 25-30 feet in its natural habitat, developing a short, stout trunk and numerous upright branches that form a broad crown.

Its olive-green to bluish-green stems are characterized by prominent ribs lined with large, white-felted areoles from which its distinctive long, stout spines emerge. These spines are initially yellowish, maturing to a darker, almost black hue with age, providing a formidable defense. In late spring to early summer, mature Argentine Toothpick cacti produce large, funnel-shaped white flowers, often tinged with pink, that can measure up to 6 inches in diameter. These beautiful blooms typically open at night and may remain open until mid-morning, adding a dramatic flair to the desert landscape. Following successful pollination, the plant produces edible, smooth-skinned fruit with a lemony flavor. Its architectural form and drought tolerance make the Argentine Toothpick an excellent choice for xeriscaping, desert gardens, and as a striking focal point in sunny, well-drained environments.