John Cancalosi / Rain storm in the Sonoran desert, with Saguaro cacti (Carnegiea gigantea), near Tucson, Arizona. 2018.
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Jack Dykinga / Twisted Saguaro cactus (Carnegiea gigantea) Catalina State Park, near Tucson, Arizona, USA, September.
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Jack Dykinga / Hairy bird's foot morning glory (Ipomoea leptotoma) flower over Prickly pair (Opuntia sp) Catalina State Park, near Tucson, Arizona, USA, August.
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Jack Dykinga / Lightning storm with rainbow over Saguaro cactus (Carnegiea gigantea) Avra Valley, Saguaro National Park, Tucson Mountains, Arizona, USA, August 2015. Long exposure with lightning trigger.
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Jack Dykinga / Lightning storm at twilight with Saguaro cactus (Carnegiea gigantea) Avra Valley, Saguaro National Park, Tucson Mountains, Arizona, USA. June 2015. Long exposure with lightning trigger.
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Jack Dykinga / Twisted and emerging limbs of Saguaro cacti (Carnegiea gigantea) Sonoran Desert near Tucson, Arizona, USA
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Jack Dykinga / Dramatic rosette of spiked leaves of a Yucca plant, Tucson, Arizona, USA
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Jack Dykinga / Close up of Saguaro cactus (Carnegiea gigantea) and Teddybear cholla (Cylindropuntia bigelovii) in evening light, Tucson Mountain Park, Arizona, USA
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Jack Dykinga / Saguaro Cactus (Carnegiea gigantea) with new flowers emerging at the tip of its limb, Tucson Mountains, Saguaro NP, Arizona, USA
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Jack Dykinga / Signal Hill petroglyphs at sunset with Saguaro Cacti (Carnegiea gigantea) and Tucson Mountains in the background, Saguaro National Monument, Arizona, USA
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Jack Dykinga / Saguaro Cacti (Carnegiea gigantea) with detail of the cactus spines, Tucson Mountains, Saguaro NP, Arizona, USA
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Philippe Clement / Rock art in the Tucson Mountains, created by the Hohokam Indians, showing geometrical shaped petroglyphs, Saguaro NP, Arizona, USA May 2007