Artichoke Cactus (Obregonia denegrii)

The Artichoke Cactus is found only in a very small area in the state of Tamaulipas, Mexico. It grows specifically in the Sierra Madre Oriental mountain range under specific limestone rock conditions. This highly restricted habitat makes it incredibly rare in the wild.

Obregonia denegrii features a unique, flattened, spherical shape covered in thick, triangular tubercles that closely resemble an artichoke. The plant is typically solitary, with dark green skin obscured by white wool in the axils. During the summer, it produces small white flowers from the center of the plant.

Yes, the Obregonia denegrii is considered an endangered species. Its population is declining due to over-collection by plant enthusiasts and agricultural development in Tamaulipas. International trade of this cactus is strictly regulated to protect its remaining wild numbers.

The genus Obregonia is named in honor of Álvaro Obregón, a former President of Mexico. The specific epithet denegrii honors Nicolas Denegri, an early 20th-century Mexican botanist. It is the only species in its specific monotypic genus.