Jack Dykinga / Joshua Trees (Yucca brevifolia) of the Mojave Desert at dawn encircled with flowering lupines. (Lupinus sp,) Mohave County, Castaneda Wash, Arizona, USA.

Jack Dykinga / Yellow California goldfields (Lasthenia californica) and orange California poppies (Eschscholzia californica) carpet the hillside, with flowering Joshua Tree (Yucca brevifolia) in the forground. Antel...

Jack Dykinga / Yellow California goldfields (Lasthenia californica) and orange California Poppies (Eschscholzia californica), with a flowering Joshua tree (Yucca brevifolia). Antelope Butte, near the Antelope Valley...

Jack Dykinga / Yellow California goldfields (Lasthenia californica) and orange California Poppies (Eschscholzia californica), with a flowering Joshua tree (Yucca brevifolia). Antelope Butte, near the Antelope Valley...

Klein & Hubert / Wild donkey / Burro jenny near Joshua trees (Yucca brevifolia), Mojave Desert, Nevada, USA.

Jack Dykinga / Yuccas (Yucca elata) silhouetted against the moon and morning light, White Sands National Park, New Mexico. January.

Jack Dykinga / White Sands National Park with its white gypsum dunes dotted with Yuccas (Yucca elata) creating patterns amid the dunes, at sunset. White Sands, New Mexico. January 2013

Jack Dykinga / White Sands National Park with its white gypsum dunes dotted with Yuccas (Yucca elata) creating patterns amid the dunes. White Sands, New Mexico, USA. January 2013

Jack Dykinga / A cluster of flowering Barrel cacti (Ferocactus stainsii) with Yuccas (Yucca sp) in the Eastern extension of the Chihuahuan Desert, Tamaulipas, Mexico

Jack Dykinga / Clusters of Barrel Cacti (Ferocactus stainesii) and Yuccas (Yucca sp) with the Sierra Madre in the background, Chihuahuan Desert, Mexico, Central America

Jack Dykinga / Soaptree Yuccas (Yucca elata) in flower amid Big Bend Bluebonnet (Lupinus harvardii), dawn, Chisos Mountains, Big Bend National Park, Texas

Jack Dykinga / Mound cactus (Echinocererus triglochidiatus var. mojavensis) flowering at sunset with Joshua tree (Yucca brevifolia) in distance, Mojave Trails National Monument California, USA.

Nick Upton / Yucca (Yucca sp.) flowering, Mallorca, Spain, August.

Jack Dykinga / Soaptree yucca (Yucca elata) with seedhead in white gypsum sand dunes, White Sands National Monument, New Mexico, USA. December.

Jack Dykinga / Soaptree yucca (Yucca elata) with seedhead in white gypsum sand dunes, White Sands National Monument, New Mexico, USA. December.

Jack Dykinga / Soaptree yucca (Yucca elata) with seedhead in white gypsum sand dunes, White Sands National Monument, New Mexico, USA. December.

Jack Dykinga / Soaptree yucca (Yucca elata) with seedhead in white gypsum sand dunes, White Sands National Monument, New Mexico, USA. December.

Jack Dykinga / Yucca (Yucca schottii) plant with Bigtooth maple (Acer grandidentatum) autumn foliage in background. Cave Creek Canyon, Chiricahua Mountains, Coronado National Forest, Arizona, USA. November.

Jack Dykinga / Yucca (Yucca schottii) with Sycamore (Acer sp) and Ash (Fraxinus sp) in autumn foliage in background. Cave Creek Canyon, Chiricahua Mountains, Coronado National Forest, Arizona, USA. November 2019.

John Shaw / Soaptree yucca (Yucca elata) in early morning, with the San Andreas Mountains in the distance. White Sands National Monument, New Mexico, USA. December,

John Shaw / Soaptree yucca (Yucca elata) in pre-sunrise light. White Sands National Monument, New Mexico, USA. December,

John Shaw / Soaptree yucca (Yucca elata) with broken flower stalk on gypsum dune. White Sands National Monument, New Mexico, USA. December,

John Shaw / Soaptree yucca (Yucca elata) on gypsum dun, White Sands National Monument, New Mexico, USA. December

John Shaw / Soaptree yucca (Yucca elata) and gypsum dune lust before sunrise. White Sands National Monument, New Mexico, USA. December,

John Shaw / Soaptree yuccas (Yucca elata) and wind-patterned sand. White Sands National Monument, New Mexico, USA. December,

John Shaw / Soaptree yucca (Yucca elata) on gypsum dune at first light. White Sands National Monument, New Mexico, USA. December,

John Shaw / Soaptree yucca (Yucca elata) on gypsum dune at last light, with San Andreas Mountains in distance. White Sands National Monument, New Mexico, USA. December,

John Shaw / Frost on soaptree yuccas (Yucca elata) and winter morning fog, in the gypsum sand dunes of White Sands National Park, New Mexico, USA. January.

John Shaw / Frost on soaptree yuccas (Yucca elata) and winter morning fog, in the gypsum sand dunes of White Sands National Park, New Mexico, USA. January.

Jack Dykinga / Joshua trees (Yucca brevifolia) and Mojave yuccas (Yucca schidigera) are drapped by a heavy blanket of snow. California. Mojave Natural Preserve, Mojave Desert, Cima Dome Joshua tree forest in late s...

Jack Dykinga / Cima Dome Joshua tree forest in a late-season blizzard. Joshua trees (Yucca brevifolia) and Mojave yuccas (Yucca schidigera) covered in a heavy blanket of snow. Mojave Natural Preserve, Mojave Desert,...

Jack Dykinga / Cima Dome Joshua tree forest in a late-season blizzard. Joshua trees (Yucca brevifolia) and Mojave yuccas (Yucca schidigera) covered in a heavy blanket of snow. Mojave Natural Preserve, Mojave Desert,...

Jack Dykinga / Cima Dome Joshua tree forest in a late-season blizzard. Joshua trees (Yucca brevifolia) and Mojave yuccas (Yucca schidigera) covered in a heavy blanket of snow. Mojave Natural Preserve, Mojave Desert,...

Jack Dykinga / Cima Dome Joshua tree forest in a late-season blizzard. Joshua trees (Yucca brevifolia) and Mojave yuccas (Yucca schidigera) covered in a heavy blanket of snow. Mojave Natural Preserve, Mojave Desert,...

John Shaw / Soaptree yucca (Yucca elata) at sunset. White Sands National Park, New Mexico, USA. January.

Jack Dykinga / Yucca surrounded by California poppies (Eschscholzia californica) and phacelia, in the dry arroyo water course. Joshua Tree National Park, Mojave Desert, California, USA. 27th March 2019.

Jack Dykinga / Yucca surrounded by California poppies (Eschscholzia californica) and phacelia. Joshua Tree National Park, Mojave Desert, California, USA. 27th March 2019.

Jack Dykinga / Phacelia intertwined amid the blades of yucca (Yucca schidigera), growing in desert arroyo. Joshua Tree National Park, Mojave Desert, California, USA. 25th March 2019.

Jack Dykinga / Yellow California goldfields (Lasthenia californica) and orange California Poppies (Eschscholzia californica), with a flowering Joshua tree (Yucca brevifolia). Antelope Butte, near the Antelope Valley...

Jack Dykinga / Joshua trees (Yucca brevifolia) silhouetted with the sun setting on the horizon. Mojave Trails National Monument. Preserve, California, USA.

Inaki Relanzon / Joshua tree (Yucca brevifolia) at night with Milky Way, Joshua Tree National Park, California, USA.

Cyril Ruoso / Yucca (Yucca torreyi) in flower at night, South Texas, USA, April.

Cyril Ruoso / Yucca (Yucca torreyi) in flower, South Texas, USA, April.

Cyril Ruoso / Boojum tree (Fouquieria columnaris), Elephant cactus (Pachycereus pringlei) and Datilillo (Yucca valida) silhouetted at night, Vizcaino Desert, Baja California, Mexico, May.

Juan Carlos Munoz / Rock formation know as Giant Marbles, Joshua Tree National Park, California, USA, February 2015.

Juan Carlos Munoz / Joshua tree (Yucca brevifolia) saplings and larger trees, Joshua Tree National Park, California, USA, February 2015.

Juan Carlos Munoz / Joshua trees (Yucca brevifolia) Joshua Tree National Park, California, USA, February 2015.

Juan Carlos Munoz / Joshua tree (Yucca brevifolia) silhouetted again sky, Joshua Tree National Park, California, USA, February 2015.