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Notes for the Genus:

thelocactus

Etymology - From the Greek thele which means "nipple" - making reference to the tubercles.
Thelocactus is comprised of a dozen species that are found primarily in the Chihuahuan desert of Texas and Mexico. The species have feature small globose or short cylindrical stems that are solitary or form small clusters. The stems have ribs that are strongly or entirely tuberculate and are often topped with stout, needle-like spines, which are hooked in some species. Flowers are white, pink, or yellow and often are a combination of colors, either in concentric rings or strips. The flowers are usually large in proportion to the stems and come from the top of the plant. Flowers may also continue during the entire summer.

The manageable size of the plants and the readiness to flower in conjunction with the ease of care make many species in this genus very popular in cultivation.

Click on one of the species below for more info.

thelocactus bicolor

thelocactus bicolor


     21 images

Taxa Included:
   Thelocactus bicolor schwarzii -
6 images

   Thelocactus bicolor flavidispinus -
5 images

   Thelocactus bicolor mapimensis -
1 image

   Thelocactus bicolor bicolor -
2 images

   Thelocactus bicolor bolaensis -
3 images

   Thelocactus bicolor schottii -
4 images


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thelocactus conothelos

thelocactus conothelos


     14 images

Taxa Included:
   Thelocactus conothelos -
9 images

   Thelocactus conothelos argenteus -
1 image

   Thelocactus conothelos aurantiacus -
3 images

   Thelocactus conothelos saussieri -
1 image


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thelocactus garciae

thelocactus garciae


     5 images

Taxa Included:
   Thelocactus garciae -
5 images


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thelocactus hastifer

thelocactus hastifer


     6 images

Taxa Included:
   Thelocactus hastifer -
6 images


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thelocactus heterochromus

thelocactus heterochromus


     7 images

Taxa Included:
   Thelocactus heterochromus -
4 images

   Thelocactus heterochromus longispinus -
3 images


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thelocactus hexaedrophorus

thelocactus hexaedrophorus


     10 images

Taxa Included:
   Thelocactus hexaedrophorus -
6 images

   Thelocactus hexaedrophorus lloydii -
4 images


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thelocactus lausseri

thelocactus lausseri


     5 images

Taxa Included:
   Thelocactus lausseri -
5 images


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thelocactus leucacanthus

thelocactus leucacanthus


     14 images

Taxa Included:
   Thelocactus leucacanthus -
5 images

   Thelocactus leucacanthus schmollii -
8 images

   Thelocactus leucacanthus Rio Moctezuma -
1 image


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thelocactus macdowellii

thelocactus macdowellii


     5 images

Taxa Included:
   Thelocactus macdowellii -
5 images


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thelocactus multicephalus

thelocactus multicephalus


     2 images

Taxa Included:
   Thelocactus multicephalus -
2 images


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*Currently 12 of 12 known species in this genus are represented on CactiGuide.com.
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