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Grusonia
Grusonia is a genus of opuntioid cacti (family Cactaceae), originating from the North American Deserts in Southwest United States and northern Mexico, including Baja California. Authors differ on precise boundaries of the genus, which has been included in Cylindropuntia. Corynopuntia, also known as club chollas (or "perritos" in Mexico), is now a synonym, with the genus originally being described by Knuth in 1935. Molecular phylogenetic studies suggest that it should be included in Grusonia, a view accepted by Plants of the World Online as of June 2021.
The members of the genus Grusonia are native of South-Western United States (California, Arizona, Nevada, New Mexico and Texas) and Northern Mexico (States of Baja California, Baja California Sur, Sonora, Chihuahua, Coahuila, Nuevo Leon, Durango, Zacatecas, San Luis Potosì, Tamaulipas), from 60 up to 2000 m above the sea level.
Tiny Mound Cholla · Club cholla · Graham's pricklypear · Matted cholla · Opuntia invicta
Text excerpted from the Wikipedia article Grusonia by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
