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  • Engelmann prickly pear (Opuntia engelmannii) from the desert at Picketpost Mountain, The Superstitions, Arizona.
    11115-D.jpg
  • Desert landscape with prickly pear and saguero cacti from Picacho Peak State Park (Arizona, USA) in March 2020.
    22087-D.jpg
  • Most likely violet prickly pear (Opuntia gosseliniana) from the desert at Picketpost Mountain, The Superstitions, Arizona.
    11116-D.jpg
  • Lave rock formation with prickly pear cacti at Santiago Island, Galapagos.
    78073-D.jpg
  • Engelmann prickly pear (Opuntia engelmannii) from the desert at Picketpost Mountain, The Superstitions, Arizona.
    11117-D.jpg
  • Purple Prickly Per (Opuntia macrocenta) in the desert at Picketpost Mountain, The Superstitions, Arizona
    11113-D.jpg
  • Purple Prickly Per (Opuntia macrocenta) in the desert at Picketpost Mountain, The Superstitions, Arizona
    11114-D.jpg
  • Large specimen of Engelmann's Prickley Pear (Opuntia engelmannii) from Organ Pipe Cactus National Monument, southern Arizona.
    22062-D.jpg
  • Opuntia violacea, probably var. macrocentra.  Flowering specimens from Arizona, USA.
    11035-D.jpg
  • Opuntia violacea, probably var. macrocentra. From Arizona, USA.
    11039-D.jpg
  • Opuntia violacea, probably var. macrocentra.  Flowering specimens from Arizona, USA.
    11034-D.jpg
  • Opuntia violacea (var. santa-rita). Flowering specimen from Arizona, USA.
    11036-D.jpg
  • Flower of Opuntia violacea, probably var. macrocentra. Arizona, USA.
    11040-D.jpg
  • Opuntia violacea (var. santa-rita). Flowering specimen from Arizona, USA.
    11037-D.jpg
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Alf J. Nilsen Natural History images

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