Back



    Hamatocactus setispinus (Engelmann) Britton & Rose

    [= Hamatocactus bicolor (Terán & Berlandier) I.M Johnston]



      Growing with an Astrophytum asterias population in Starr Co, Texas.




      Growing amidst a L. williamsii population in Jim Hogg County, Texas.




      Growing with a L. williamsii population near Rio Grande City in Starr County, Texas.


    Notice the drought stimulated predation in some of the images on this page.


    Take a look at Hamatocactus setispinus growing in southwestern Hidalgo County, Texas.



      The following two images were taken from our archival photos.
      Plant cultivated in the cactus garden at the Los Angeles Arboretum.




    Hamatocactus bicolor is the correct name within Hamatocactus but care should be taken NOT to equate Hamatocactus bicolor with Thelocactus bicolor which is an entirely different plant.
        We are employing H. setispinus as the title for this entry simply to lessen chances of confusion between the two different "bicolor"s.
        Inclusion of setispinus within Thelocactus seems questionable as this species lacks tubercles & lacks fruit dehiscing via a basal pore. It also has divergent seed morphology.





    Contents ©
    All images are © copyrighted by the photographers and/or the CCI and are used with permission.
    Reproduction is forbidden without prior written consent




    Cactus Conservation Institute