Claudio Contreras / Brittlebush (Encelia farinosa) and Emory's rock daisy (Perytile emoryi). El Pinacate Biosphere Reserve, Sonoran Desert, northwest Mexico.

Claudio Contreras / Sonoran Desert with Teddy-bear cholla (Cylindropuntia bigelovii), Saguaro (Carnegiea gigantea) and Brittlebush (Encelia farinosa). El Colorado volcano in background. El Pinacate Biosphere Reserve, nor...

John Chan / California brittlebush (Encelia californica) in flower, Southern California, USA, April.

John Chan / Honey bee (Apis mellifera) gathering pollen from a California brittlebrush (Encelia californica), Bolsa Chica Ecological Reserve, California, USA, March.

John Chan / Honey bee (Apis mellifera) gathering pollen from a California brittlebrush (Encelia californica), Bolsa Chica Ecological Reserve, California, USA, March.

Tim Fitzharris / Saguaro (Carnegiea gigantea) cacti and Brittlebush (Encelia californica) flowers in spring, White Tank Mountains, Arizona

Floris van Breugel / Brittlebrush (Encelia farinosa) flowering in Anza-Borrego Desert, California, April

Tim Fitzharris / Saguaro (Carnegiea gigantea) cactus and California Brittlebush (Encelia californica) in Lost Dutchman State Park, Superstition Mountains, Arizona

Patricio Robles Gil / Ocotillo (Fouquieria splendens) and Brittlebush (Encelia californica), Sonoran Desert, El Pinacate/Gran Desierto de Altar Biosphere Reserve, Sonora, Mexico

Tim Fitzharris / California Brittlebush (Encelia californica), Lost Dutchman State Park, Superstition Mountains, Arizona

Tim Fitzharris / Saguaro (Carnegiea gigantea) amid flowering Lupine, California Brittlebush (Encelia californica) and Desert Golden Poppies (Eschscholtzia glyptosperma), Organ Pipe Cactus National Monument, Arizona

Tim Fitzharris / Saguaro (Carnegiea gigantea) amid flowering Lupine, California Brittlebush (Encelia californica) and Desert Golden Poppies (Eschscholtzia glyptosperma), Organ Pipe Cactus National Monument, Arizona

Tim Fitzharris / Saguaro (Carnegiea gigantea) and Teddybear Cholla (Cylindropuntia bigelovii) amid flowering Lupine and California Brittlebush (Encelia californica), Arizona

Tim Fitzharris / Saguaro (Carnegiea gigantea) and Teddybear Cholla (Cylindropuntia bigelovii) amid flowering Lupine and California Brittlebush (Encelia californica), Arizona

Tim Fitzharris / Ocotillo (Fouquieria splendens) and Brittlebush (Encelia californica) flowers in spring, Kofa National Wildlife Refuge, Arizona

Tim Fitzharris / Saguaro (Carnegiea gigantea) cacti and Brittlebush (Encelia californica) flowers in spring, White Tank Mountains, Arizona

Tim Fitzharris / Ocotillo (Fouquieria splendens) and Brittlebush (Encelia californica) flowers, Anza-Borrego Desert State Park, California

Tim Fitzharris / Ocotillo (Fouquieria splendens) and Brittlebush (Encelia californica) flowers, Kofa National Wildlife Refuge, Arizona

Jack Dykinga / Brittlebush (Encelia farinosa) and Owl's clover (Castilleja exserta) in flower amongst Saguaro cactus (Carnegiea gigantea) studded slopes, Sonoran Desert, Tonto National Monument, Arizona, USA, A...

Jack Dykinga / Brittlebush (Encelia farinosa) and Owl's clover (Castilleja exserta) in flower amongst Saguaro cactus (Carnegiea gigantea) studded slopes, Sonoran Desert, Tonto National Monument, Arizona, USA, A...

Jack Dykinga / Brittlebush (Encelia farinosa) and Owl's clover (Castilleja exserta) in flower amongst Saguaro cactus (Carnegiea gigantea) studded slopes, Sonoran Desert, Tonto National Monument, Arizona, USA, A...

Jack Dykinga / Brittlebush (Encelia farinosa) and Owl's clover (Castilleja exserta) in flower amongst Saguaro cactus (Carnegiea gigantea) studded slopes, Sonoran Desert, Tonto National Monument, Arizona, USA, A...

Jack Dykinga / Globemallow (Sphaeralcea ambigua) in flower with Brittlebush (Encelia farinosa) flowering on hill behind between Saguaro cacti (Carnegiea gigantea) Dripping Springs Mountains, Sonoran Desert, Pinal C...

Jack Dykinga / Ocotillo (Fouquieria splenden) in flower with Brittlebush (Encelia farinosa) in desert near Tule Well, Cabeza Prieta National Wildlife Refuge, Arizona, USA. March.

Jack Dykinga / Hillside of flowering Red owl's clover (Orthocarpus purpurascens) Brittlebush (Encelia farinosa) and Teddy bear cholla (Opuntia bigelovii) Harcuvar Mountains, Arizona, USA.

Jack Dykinga / Brittlebush (Encelia farinosa) Ocotillo (Fouquieria splendens) and lone Saguaro cactus (Carnegiea gigantea), Sierra Pinacate, Carnege, Mexico.

Jack Dykinga / Teddy bear cholla (Cylindropuntia bigelovii) cacti amongst Brittlebush (Encelia farinosa) flowers. Sonoran Desert in stormy morning light. Cabeza Prieta National Wildlife Refuge, Arizona, USA. March 2...

Jack Dykinga / Brittlebush (Encelia farinosa) with mountains in background, following rainfall. Cabeza Prieta National Wildlife Refuge, Arizona, USA. March 2020.

Jack Dykinga / Sonoran Desert with Saguaro (Carnegiea gigantea), Teddy bear cholla (Cylindropuntia bigelovii), Ocotillo (Fouquieria splendens) and flowering Brittlebush (Encelia farinosa). Cabeza Prieta National Wil...