Jack Dykinga / Brittlebush growing from granite rocks in Diamond Creek, West-Hualapai Indian Reserve, Grand Canyon, 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 cactus {Opuntia bigelovii}, Brittlebush {Encelia farinosa} and Red owl's clover {Orthocarpus purpurascens} flowering on Harcuvar mountains, Arizona, USA with Arrastra mountains in th...

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

Richard Herrmann / Brittlebush (Encelia farinosa), Jubilee Pass, Black Mountains, Amargosa Desert, California

Steve Nicholls / Brittlebush (Encelia farinosa) flowering, Mojave desert, Joshua NP, California, USA, February

Steve Nicholls / Brittlebush (Encelia farinosa) flowering, Mojave desert, Joshua NP, California, USA, February

Tim Laman / Flowering Brittlebush (Encelia farinosa) with Cholla cactus (Opuntia sp) and other desert plants. Anza-Borrego Desert State Park, California, USA. March 2005

Tim Laman / Flowering Brittlebush (Encelia farinosa) with Cholla cactus (Opuntia sp) and other desert plants. Anza-Borrego Desert State Park, California, USA. March 2005

Tim Fitzharris / Saguaro (Carnegiea gigantea) cacti and Brittlebush (Encelia sp) at Picacho Peak State Park, Arizona

Tim Fitzharris / Saguaro (Carnegiea gigantea) cacti and Brittlebush (Encelia sp) at Picacho Peak State Park, Arizona

Tim Laman / Brittlebush (Encelia farinosa) in bloom, Anza-Borrego Desert State Park. California. Mar 2004.

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

Jack Dykinga / Elephant Tree (Bursera microphylla) and Brittlebush (Encelia farinosa) with the Picacho El Destiladera mountain in the background, Vizcaino Desert, Baja California Sur, Mexico, Central America

Kirkendall-Spring / Flowering Brittlebush {Encelia farinosa} with Organ Pipe Cactus {Stenocereus thurberi}, Sonoran Desert, Organ Pipe Cactus National Monument, Arizona, USA

Philippe Clement / Brittlebush (Encelia farinosa) in flower. Organ Pipe National Monument, Arizona, USA.

Philippe Clement / Brittlebush (Encelia farinosa) in flower. Organ Pipe National Monument, Arizona, USA.

Philippe Clement / Brittlebush (Encelia farinosa) in flower. Organ Pipe National Monument, Arizona, USA.

Jack Dykinga / Brittlebush {Encelia farinosa} flowering in desert with Red owl's clover {Orthocarpus purpurascens} Blanco Mtns, Organ Pipe Cactus National Monument, Arizona, USA

Jack Dykinga / Skeleton frame of Organ Pipe Cactus {Cereus thurberi} frames Saguaro cactus {Carnegiea gigantea} and Brittlebush {Encelia farinosa} Organ Pipe Cactus National Monument, Arizona, USA

Jack Dykinga / Brittlebush {Encelia farinosa} and Red owl's clover {Orthocarpus purpurascens} flowering in desert with Chain cholla cactus {Opuntia fulgida} Blanco Mtns, Organ Pipe Cactus National Monument, Arizona,...

Jack Dykinga / Brittlebush {Encelia farinosa} and Red owl's clover {Orthocarpus purpurascens} flowering in desert with Chain cholla cactus {Opuntia fulgida} Blanco Mtns, Organ Pipe Cactus National Monument, Arizona,...

Jack Dykinga / Skeleton frame of Organ pipe cactus {Cereus thurberi} framing Saguaro cactus {Carnegia gigantea} and Brittlebush {Encelia farinosa} Organ Pipe National Monument, Arizona, USA

Jack Dykinga / Brittlebush plants {Encelia farinosa} growing on red lava flow on coast of Sea of Cortez, Desierto Central, Baja California, Mexico

Jack Dykinga / Brittlebush {Encelia farinosa} and Red owl's clover {Orthocarpus purpurascens} Puerto Blanco Mtns, Organ Pipe National Monument, Arizona, USA

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 / Chuparosa (Justicia californica) and Brittlebush (Encelia sp), 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 / Brittlebush (Encelia farinosa) blooms with Convergent Lady Beetle (Hippodamia convergens), North America

Scott Leslie / Brittlebush (Encelia farinosa) flowering and red rocks, Valley of Fire State Park, Nevada

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

Richard Herrmann / Brittlebush (Encelia farinosa) and Barrel Cactus (Ferocactus sp), Emigrant Pass, Nopah Range Wilderness, Amargosa Desert, California

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 / Saguaro cactus (Carnegiea gigantea) with twisted arms caused by freezing weather, in Sonoran Desert with flowering Brittlebush (Encelia farinosa). Cabeza Prieta National Wildlife Refuge, Arizona, USA....

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 / Teddy bear cholla cactus (Cylindropuntia bigelovii) with Ocotillo (Fouquieria splendens) and flowering Brittlebush (Encelia farinosa) in background. Cabeza Prieta National Wildlife Refuge, Arizona, US...

Jack Dykinga / Teddy bear cholla (Cylindropuntia bigelovii) cacti and Ocotillo (Fouquieria splendens) with flowering Brittlebush (Encelia farinosa) in background, in morning light. Cabeza Prieta National Wildlife Re...

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...

Jack Dykinga / Teddy bear cholla (Cylindropuntia bigelovii) cacti and Ocotillo (Fouquieria splendens) in morning light, flowerin Brittlebush (Encelia farinosa) in background. Cabeza Prieta National Wildlife Refuge,...