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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cacteae
Genus: Obregonia
Species: Obregonia denegrii

Obregonia Frič, Zivot Prir. 29(2): 14 [Kakt. a Succ. 3]. 1925.

Type species: Obregonia denegrii Frič


The specific epithet Obregonia honors the Sonoran-born general in the Mexican Revolution. He became the 46th President of Mexico from 1920 to 1924

Ariocarpus subg. Obregonia (Frič) Halda, Acta Mus. Richnov., Sect. Nat. 5(1): 37. 1998.

Native distribution areas:

Continental: Northern America
Regional: Mexico
Mexico Northeast

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
Primary references

Frič, A.V. (1925) Zivot v Prír. 29(2): 14 29 (2): 14

Additional references

Korotkova, N., Aquino, D., Arias, S., Eggli, U., Franck, A. , Gómez-Hinostrosa, C., Guerrero, P.C., Hernández, H.M., Kohlbecker, A., Köhler, M., Luther, K., Majure, L.C., Müller, A., Metzing, D., Nyffeler, R., Sánchez, D., Schlumpberger, B. & Berendsohn, W.G. 2021. Cactaceae at Caryophyllales. org–a dynamic online species-level taxonomic backbone for the family. Willdenowia 51(2): 251–270. DOI: 10.3372/wi.51.51208 Open access Reference page.


Korotkova, N. et al. 2021. Obregonia in Cactaceae at A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2021 Nov 23. Reference page.
Govaerts, R. et al. 2021. Obregonia in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2021 Mar 25. Reference page.
International Plant Names Index. 2021. Obregonia. Published online. Accessed: Mar 25 2021. 2021. Obregonia. Missouri Botanical Garden. Published online. Accessed: 25 Mar 2021.
Hassler, M. 2021. Obregonia. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2021 Mar 25. Reference page.
USDA, ARS, Germplasm Resources Information Network. Obregonia in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
English: Artichoke cactus
español: obregonita
slovenščina: denegrova obregonija
svenska: Tallkottskaktus
українська: Обреґонія
中文: 帝冠

Obregonia, the artichoke cactus, is a monotypic genus of cacti, containing the species Obregonia denegrii. The species is endemic to the state of Tamaulipas in Mexico.

The genus Obregonia is named after Álvaro Obregón,[3] while the species is named after Ramon P. De Negri, who was the Minister of Agriculture of Mexico when the cacti was first described by Alfred Frec in 1923.[4]


This rare species resembles an inverted green pine cone with a woolly center. It grows slowly in culture and requires little water. It benefits from full sun and is multiplied by seed. It is very slow growing.

It is an IUCN Red List Endangered species.

The Nahuatl Indians call the plant peyotl, and it is said to have hallucinogenic alkaloids.[4] It is one of the closest living relatives of the genus Lophophora.[5]


Gómez-Hinostrosa, C.; Guadalupe Martínez, J. (2013). "Obregonia denegrii". IUCN Red List of Threatened Species. 2013: e.T40968A2948122. doi:10.2305/IUCN.UK.2013-1.RLTS.T40968A2948122.en. Retrieved 12 November 2021.
"Appendices | CITES". Retrieved 14 January 2022.
Eggli, Urs et al. (2004). Etymological Dictionary of Succulent Plant Names, p. 169, 64., p. 169, at Google Books
Venning, Frank D. Cacti (A Golden Guide). Racine, Wisconsin: Western Publishing Company, Inc. p. 153.

Anderson, Miles (2008). The Complete Illustrated Guide to Growing Cacti & Succulents. London: Lorenz Books. p. 94. ISBN 9780754818427.

Gómez-Hinostrosa, C.; Guadalupe Martínez, J. (2013). "Obregonia denegrii". IUCN Red List of Threatened Species. 2013: e.T40968A2948122. doi:10.2305/IUCN.UK.2013-1.RLTS.T40968A2948122.en. Retrieved 12 November 2021. — Database report on species & threats.

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