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Rebutia heliosa "melanistic" KK489 (Short spined form)
(Syn: Aylostera densipectinata)

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Rebutia heliosa var. melanistic KK849 "Sort spined form"

One of the most remarkable red blooming Rebutias with short, tiny silvery brown spines and purple tinged stem reminding of Sulcorebutia rauschii.

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Family: Cactaceae (Cactus Family)

Scientific Name: Aylostera heliosa var. melanistic (sensu Krahn - Uhlig)

Synonyms:  

  • Rebutia densipectinata (n. n. Kníže, non Ritter)
  • Sulcorebutia densipectinata (hort. mix. gen., USA)
  • Aylostera densipectinata (hort.)
  • Rebutia heliosa var. condorensis (sensu Donald, Pilbeam)
  • Aylostera heliosa var. melanistic. 


Distribution:  
Bolivia (Near Tarija (Jucanas) on the road to Narvaez)
Habitat: It grows in mountainous areas at an altitude around 2500 m 3000 m over sea level

 

Conservation status: Listed in CITES Appendix II
 

Description: It is essentially a miniature plant that readily forms a clustering mound of tiny heads.
Stem: Heads 2.5 cm wide, rarely higher than 3 cm or more.
Flower: Large dark-red, funnel-shaped, long -necked, 4 cm in diameter, 5 cm long.
Phenology: Blossoming time:
Profusely flowering in spring.


 


During the blooming time a multitude of flowers nearly cover the plants.
 

 

 

Cultivation: These plants come from mountainous areas, so like bright light, cool and dry conditions in the winter; this is important for the flowers as well as for their health. Without this cool winter period (0-10° C) they normally wont get many buds. They have thick taproot and are of difficult cultivation and rot prone because of a great sensitivity to the excess of watering, not easy to get to any large size on their own roots really a challenge to grow into a large clump. They are commonly grafted to avoid root problems and to make easier to grow. Sun Exposure: Suited for sunny-brightly exposure; can tolerate light shade.
Cultural Practices: Suited for airy exposures. Needs deep pot and good drainage to accommodate its tap root.
It is very cold resistant  as low as to -10° C or less for short periods of time. It is a fine plant for a rock garden or container, contrasts well with agaves, yuccas, and low-growing flowering plants.
Pests & diseases:   R. heliosa is especially prone to root rot, therefore, underpot in a smaller container filled with very porous compost.

Propagation: Cutting as it branches freely from the base; Also can be grown from seeds or graft. Seeds can be sown in the spring or summer. The seedlings should not be disturbed until they are well rooted after which they can be planted separately in small pots.

 

 

Photo of conspecific taxa, varieties, forms and cultivars of Rebutia heliosa:

 

 


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

Photo gallery Rebutia


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This old page has been moved! Click the link next on the right to enter the new Enciclopedia of Cacti. We hope you find this new site informative and useful.

The Encyclopedia of Cacti