''Gymnocalycium eurypleurum'' is a small "chin cactus" that is highly prized by cactus collectors and is known to be fairly easy to grow, albeit very slow It has been cultivated outside in latitudes as far north as

Modesto, California Modesto () is the county seat and largest city of Stanislaus County, California, United States. With a population of 218,464 at the 2020 census, it is the 19th largest city in the state of California and forms part of the Sacramento-Stockton- ...

. In the wild, the species is almost always solitary (non-clumping) and may grow in association with ''

Frailea ''Frailea'' is a genus of globular to short cylindrical cacti native to South America. These species are cleistogamous. They were first classified in the genus '' Echinocactus''. Species Species accepted by the Plants of the World Online P ...

'' species. The species when grown in the greenhouse is also known for its fidelity to wild specimens. It is said to live in seasonally very dry habitat (annual rainfall ), clay soils between 6.8–7.2 pH, and maximum temperatures to . Gymnocalycium eurypleurum is an endemic specie from

Paraguay Paraguay (; ), officially the Republic of Paraguay ( es, República del Paraguay, links=no; gn, Tavakuairetã Paraguái, links=si), is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to th ...

Range

Friedrich Ritter Friedrich Ritter (9 May 1898 – 9 April 1989) was a German botanist who collected and described many species of cacti. '' Ritterocereus'' is named in his honour. References 1898 births 1989 deaths {{botanist-stub ...

describes the range of the species as, "even more vast than generally known. We found ''G. eurypleurum'' until close to the military station of Fn. Palmar de las Islas, up in the north near the Bolivian border. Here the species coexisted together with the beautiful ''Echinopsis chacoana'', ''Gymnocalycium mihanovichii'' var. ''stenopleurum'' and ''Frailea'' spec."

References

{{Taxonbar, from=Q1558351 eurypleurum Cacti of South America Flora of Argentina Plants described in 1979