Jack Dykinga / Lightning storm with rainbow over Saguaro cactus (Carnegiea gigantea) near Redrock, Arizona State Trust, Sonoran Desert, Arizona. September 2015. Long exposure with lightning trigger.

Jack Dykinga / Backlit silver cholla cactus (Cylindropuntia echinocarpa) surrounded by California poppies (Eschscholzia californica), beneath the eroded boulders that define the park. Joshua Tree National Park, Moja...

Floris van Breugel / Desert agave (Agave deserti) has skewered a ball of spines shed by neighboring Cholla cactus (Cylindropuntia bigelovii) Anza-Borrego State Park, California, USA March

Floris van Breugel / Cholla cactus (Opuntia) backlit by setting sun, Anza Borrego State Park. California, USA. April 2009.

Jack Dykinga / Close up of Saguaro cactus (Carnegiea gigantea) and Teddybear cholla (Cylindropuntia bigelovii) in evening light, Tucson Mountain Park, Arizona, USA

Jack Dykinga / Organ Pipe Cactus (Stenocereus thurberi) amongst flowering Brittlebush (Encelia farinosa) and Teddy Bear Cholla (Opuntia bigelovii), with the Ajo Mountains in the background Organ Pipe Cactus National...

Jack Dykinga / Teddy Bear Cholla (Opuntia bigelovii) and Saguaro Cacti (Carnegiea gigantea) lit by the afternoon light in the Sand Tank Mountains, Sonoran Desert National Monument, Arizona, USA

Jack Dykinga / California Poppies (Eschscholtzia californica) and flowering Spurge (Euphorbia sp) with a Cholla Cactus (Opuntia cholla) skeleton, Tres Virgenes, Baja California Sur, Mexico, Central America

Jack Dykinga / Cane cholla cactus {Opuntia versicolor}, Lupins {Lupinus sparsiflorus} and Californian poppies {Exchscholtzia californica} flowering on Quinlan mountains, Tohono O'oodham Reserve, Arizona, USA

Jack Dykinga / Teddy bear cholla cactus {Opuntia bigelovii} growing on volcanic lava flow, Pinacate and Gran Desierto Altar Biosphere Reserve, Sonoran desert, Mexico

Jack Dykinga / Mexico Teddy bear cholla cactus {Opuntia biegelovii} growing on volcanic lava flow, Pinacate and Gran Desierto Altar Biosphere Reserve, Sonoran desert, Mexico

Jack Dykinga / Teddy bear cholla cactus {Opuntia bigelovii}, Brittlebush {Encelia farinosa} and Red owl's clover {Orthocarpus purpurascens} flowering on Harcuvar mountains, Arizona, USA with Arrastra mountains in th...