Gymnocalycium castellanosii

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Gymnocalycium castellanosii
Gymnocalycium castellanosi.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Gymnocalycium
Species:
G. castellanosii
Binomial name
Gymnocalycium castellanosii
Backeb. 1936

Gymnocalycium castellanosii is a species of Gymnocalycium from Argentina.

Contents

Description

Gymnocalycium castellanosii is a solitary cactus with dull blue-green, spherical to elongated stems up to 15 cm tall and 10 cm in diameter. It has 10–12 broad, flat ribs divided into sharply defined humps. The straight, whitish spines, tipped in dark, include one central spine and 5–7 radial spines up to 2.5 cm long. The flowers are bell- to funnel-shaped, white with pink tinges, up to 4.5 cm long and wide. The fruits are green and spherical. [2]

Subspecies

Two subspecies are recognized: [3]

ImageNameDistribution
Gymnocalycium castellanosii var. bozsingianum.jpg Gymnocalycium castellanosii subsp. castellanosiiArgentina (La Rioja, San Luis)
Gymnocalycium castellanosii subsp. ferocius(Backeb. ex H.Till & Amerh.) G.J.CharlesArgentina (Córdoba)


Distribution

Native to Argentina, it grows in La Rioja, Córdoba, and San Juan provinces growing on rocky slopes and red sandstone mountains at altitudes of 500 to 1500 meters. Plants are found growing along with Gymnocalycium saglionis , Gymnocalycium schickendantzii , Gymnocalycium bodenbenderianum , Echinopsis aurea , Acanthocalycium leucanthum , Parodia microsperma , Tephrocactus articulatus , Stetsonia coryne , and Salmonopuntia salmiana . [4]

Taxonomy

First described by Curt Backeberg in 1936, its specific epithet honors Argentine botanist Alberto Castellanos.

References

  1. ↑ "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2010-09-21. Retrieved 2024-12-08.
  2. ↑ Anderson, Edward F.; Eggli, Urs; Anderson, Edward F. (2005). Das große Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 313-314. ISBN   3-8001-4573-1.
  3. ↑ "Gymnocalycium castellanosii Backeb". Plants of the World Online. Retrieved 2024-12-08.
  4. ↑ "Gymnocalycium castellanosii". LLIFLE. 2013-08-04. Retrieved 2024-12-08. Creative Commons by-sa small.svg  This article incorporates textfrom this source, which is available under the CC BY-SA 3.0 license.
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