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    Astrophytum asterias


    "Star cactus" or "Sand dollar cactus"



    In habitat in South Texas


    Green succulent leaved plants are Varilla texana. This is a common nurse plant for star cactus.
        According to Janssen et al. 2007 V. texana was observed to be a nurse plant for around a quarter of the A. asterias specimens examined within fifteen vegetation transects on nine properties.

        Other commonly associated plants that are visible in some of the images above include Hamatocactus setispinus & Opuntia leptocaulis.



    A curious resemblance in the form of a fossilized sand dollar; also from Texas (Freer).


    Astrophytum asterias images from South Texas

    A look at Astrophytum asterias in Tamaulipas, México

    Natural losses

    Regrowth

    Commonly associated plants





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    Cactus Conservation Institute