Gymnocalycium ragonesei

Gymnocalycium ragonesei
Conservation status
	; Critically Endangered (IUCN 3.1)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Genus:	Gymnocalycium
Species:	G. ragonesei
Binomial name
	Gymnocalycium ragonesei; A. Cast. 1950
Synonyms
	Gymnocalycium asterium var. minimum Pazout 1960; Gymnocalycium obductum Piltz 1990; Gymnocalycium stellatum var. minimum (Pazout) R.Strong 1975; Gymnocalycium stellatum var. obductum (Piltz) H.Till & W.Till 1996;

Gymnocalycium ragonesei is a species of Gymnocalycium from Argentina.^[2]

Description

Gymnocalycium ragonesei is a cactus usually grows solitary, with greenish-gray to dull brown, very flattened spherical stems that barely rise above the ground, reaching up to 5 cm in diameter. It has 7–10 very flat ribs with faint transverse grooves. Up to six thin, almost hair-like white spines, darker at the tips, grow up to 3 mm long. The white flowers have a faint reddish throat, measuring 3–4 cm in both length and diameter. The greenish-brown, egg- to spindle-shaped fruits grow up to 2.5 cm long.^[3]

Plant
Flower buds
Blooming flowers

Distribution

Native to Catamarca Province and Córdoba Province, Argentina, Argentina, it is found from altitudes 100 meters up to 500 meters. It is found growing semi buried at the edge of saline grasslands growing along with Gymnocalycium schickendantzii, Gymnocalycium bodenbenderianum, and Setiechinopsis mirabilis.^[4]

Gymnocalycium ragonesei growing near Lucio V. Mansilla, in Cordoba Province, Argentina

Taxonomy

Described in 1950 by Alberto Castellanos, its species name honors Argentine botanist Arturo Enrique Ragonese.

References

^ Trevisson, M.; Demaio, P.; Perea, M. (2013). "Gymnocalycium ragonesei". IUCN Red List of Threatened Species. 2013: e.T152503A644230. doi:10.2305/IUCN.UK.2013-1.RLTS.T152503A644230.en. Retrieved 20 November 2021.
^ "Gymnocalycium ragonesei in Tropicos".
^ Anderson, Edward F.; Eggli, Urs; Anderson, Edward F. (2005). Das große Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 325. ISBN 3-8001-4573-1.
^ "Gymnocalycium ragonesei". LLIFLE. 2013-08-04. Retrieved 2024-12-09. This article incorporates text from this source, which is available under the CC BY-SA 3.0 license.

External links

Media related to Gymnocalycium ragonesei at Wikimedia Commons
Data related to Gymnocalycium ragonesei at Wikispecies

[iucn_status_20_November_2021-1] Trevisson, M.; Demaio, P.; Perea, M. (2013). "Gymnocalycium ragonesei". IUCN Red List of Threatened Species. 2013: e.T152503A644230. doi:10.2305/IUCN.UK.2013-1.RLTS.T152503A644230.en. Retrieved 20 November 2021.

[2] "Gymnocalycium ragonesei in Tropicos".

[c661-3] Anderson, Edward F.; Eggli, Urs; Anderson, Edward F. (2005). Das große Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 325. ISBN 3-8001-4573-1.

[t093-4] "Gymnocalycium ragonesei". LLIFLE. 2013-08-04. Retrieved 2024-12-09. This article incorporates text from this source, which is available under the CC BY-SA 3.0 license.

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