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

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

  Thelocactus bicolor var. bolaensis CACTUS ART
NURSERY

Cultivation and Mail Sale
of Cacti and Succulents.

 


 In addition to its showy flowers, this plant has splendid, strong, white spination making it attractive all year round.
 

Description: Upright green globular stems becoming cylindrical as they age with marked ribs, 20cm tall.  
Ribs: 8, distinct. Tubercles rounded. Areoles with glands.
Spines: Dense thin white radials with pinkish central spines covering the epidermis.
Flowers: 55-100 mm wide, pink with a red throat from early spring to autumn.
 


 


 


Cultivation:
It is a summer grower species easy to cultivate. Water regularly from Spring to Autumn, but do not overwater, can become too elongated if compost is too rich. Requires full sun or light shade and careful watering to keep plant compact with strong coloured spines. Needs good drainage and very porous potting mix, In Winter, keep dry.

Reproduction: From seed, since the plant rarely produces plantlets.
 

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

Photo gallery Thelocactus

Advertising



 

Family: Cactaceae (Cactus Family)

Scientific name: Thelocactus bicolor var. bolaensis (Rnge) A.Berger 1929  (This plant sometimes is labelled "bolansis")

Origin:
Coahuila, Mexico.

Conservation status: Listed in CITES appendix 2.

Type locality Cerro Bola

Synonyms:  

  • Echinocactus bolaensis Ruenge
  • Thelocactus bicolor ssp. bolaensis (Runge)Doweld 1999


Flower are beautiful, large and pink.
 

 



T. bicolor v bolansis SB567 Brewster Co. TX. USA.
Plant from this population have red flat spines. This species is frost resistant to -12C

Photo of conspecific taxa, varieties, forms and of plants belonging to the Thelocactus bicolor complex (This Taxon has lots of synonyms ( like many other cacti) 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 characteristics):
 

  • T. bicolor var. bicolor (Frost hardiness -7C )
  • T. bicolor var. bolaensis (Frost hardiness -12C ) Origin: Coahuilafrom Sierra Bola, up to 20 cm tall.
  • T. bicolor var. commodus  It has been described as having only one, porrect, central spine, but with a careful observation it is possible to notice that the upper central spines are so appressed to the stem that they can be easily mistaken for radials.
  • T. bicolor var. ellipticus is referable to bicolor.
  • T. bicolor var. flavidispinus (Frost hardiness -12C ) Texas 8cm in diameter, 5cm tall.
  • T. bicolor var. heterochromus
  • T. bicolor var. pottsii (Referable to bicolor var. heterochromus).
  • T. bicolor var. rhodophthalmus is referable to bicolor.
  • T. bicolor var. schottii (Frost hardiness -12C) coming from the Big Bend area Texas, Chihuahua) characterized by a very long, papery upper spine.
  • T. bicolor var. schwarzii 1 0 F (-12C) Tamaulipas
  • T. bicolor var.  texensis is an invalid name for a Texas form.
  • T. bicolor var. tricolor (Frost hardiness -7C ) A form with bright red spines. Plants with these characters can be found around Saltillo, Coahuila.
  • T. bicolor var. zwakii,  It is not sufficiently distinct to deserve a subspecies rank.

Cultivars: Thelocactus bicolor cv. INERMIS

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

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