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Gymnocalycium monvillei

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Gymnocalycium monvillei
Strongly spined and hardy species from Argentina with long stiff yellow translucent spines with a red base on a bright green background.
 

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Photo of
of plants belonging to the Gymnocalycium monvillei complex (This
Taxon has lots of synonyms ( like many other gymnocalycium) whit several controversial varieties and subspecies and comprises a multitude of different forms, but where each form is linked to others by populations of plants with intermediate

Photo gallery: Alphabetical listing of Cactus and Succulent pictures published in this site.

Photo gallery Gymnocalicium



 

Family: Cactaceae (Cactus Family)

Scientific name:  Gymnocalycium monvillei (Lemaire) Britton & Rose 1922

OriginArgentina, Córdoba province (Sierras grandes and Chicas de Córdoba) and San louis province.

Conservation status: Listed in CITES appendix 2.

Synonyms:  

  • Echinocactus monvillei Lemaire 1838
  • Echinocactus multiflorus J. D. Hooker 1845
  • Gymnocalycium multiflorum (J. D. Hooker) Britton & Rose 1918
  • Gymnocalycium brachyanthum Gürke 1907
  • Gymnocalycium monvillei subsp. brachyanthum (Gürke) H. Till 1993
  • Gymnocalycium oursellianum (Cels ex Salm Dick) y. Itó - Not validly published
  • Gymnocalycium schuetzianum H. Till & Schatzl 1981
  • Gymnocalycium achirasense H. Till & Schatzl ex Till & Schatzl 1987
  • Gymnocalycium monvillei subs. achirasense ( H. Till & Schatzl ex Till) H.Till 1993
  • Gymnocalycium horridispinus G. Frank ex Till 1987
  • Gymnocalycium monvillei subsp. achirasense (G. Frank ex Till) H. Till 1993

 

Description: G. monvilley is a (usually) solitary geophytic cactus.
Stem: Flattened or globular, dark-green, grey-green to olive green, up to 20 cm in diameter, up to 8 cm  tall. (but in cultivation plants can grow up to 30 cm in diameter)
Ribs: 10-17(-20), broad, obtuse, tuberculate with chin like protrusions.
Spines: Stout, thick, slightly curved, yellow with usually reddish bases, often translucent , but also orange, black or reddish.
Radial spines: 7-13, 3-4 cm long
5-7 up to 12, but usually less in young plants, flattened against the body.
Central spines: Usually absent, or 1 to 4 erected.
Flowers: Are some of the largest in this genus, often growing larger than the plant!, funnel-shaped 4 to 8 cm long and wide, white flushed with pink or pink and often double petaled.
Blooming season:
Summer, It takes 5-6 years from seed before flowers.
Fruit:
Green that became yellowish at maturity, globose, up to 2 cm in diameter.
Seeds:
Up to 1 mm brownish-red.

There are a number of different forms of this highly variable cactus species, but not all are universally recognized. Some authorities recognize the following subspecies:

Subsp. monvillei. has 7-13 curving, ± compressed radial spines usually yellow (Origin Córdoba province)
Subsp. horridispinum Has 10-12 strong stiff radial spines ()
Subsp. achirasense Has 10-12 radial spines almost flat against the plant body (Origin San Luis province)
Subsp. Brachyanthum Has approx. 7 spines (Origin San Luis province)
 

 


Cultivation: It is a summer-growing species that offers no cultivation difficulty.  Water regularly in summer (but do not over-water).  Keep rather dry in winter. Feed with a high potassium fertilizer  in summer.   Hardy as low as   -5° C (or less) if  kept dry.  Sun Exposure: Light shade.

Propagation: Direct sow after last frost or offsets
 

Home | E-mail | Plant files | Mail Sale Catalogue | Links | Information | Search

All the information and photos in cactus art file are now available also in the new the Enciclopedia of Cacti. We hope you find this new site informative and useful.