Tephrocactus geometricus (A.Cast.) Backeb. is an extraordinary species that shows a strong adaptation to extreme desert habitat, with dwarf growth and geophytic habit. It is one of the showiest “opuntia” species sought-after by cacti impassioned, a strange "geometric" plants but fabulous flowers.
T. geometricus is closely related with Tephrocactus alexanderi and sometime considered a synonym of the latter. Tephrocactus alexanderi occurs in the mountains in a disjunct population and has different characteristics.
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The name of the Genus Tephrocactus derives from Greek 'tephra' - 'ash', referring to the grayish hues of its epidermis.
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Tephrocactus geometricus
Tephrocactus geometricus is ca. 25 cm tall and comes in a ø 10 cm pot.