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...

Jack Dykinga / Purplemat (Nama demissum) and California goldfields (Lasthenia californica) growing through pebbles of a dry streambed. Joshua Tree National Park, Mojave Desert, California, USA. 25th March 2019.

Jack Dykinga / Birdcage evening primrose (Oenothera deltoides) flowering in the sand dune flats near Joshua Tree National Park, California, USA, March.

Jeff Foott / Joshua Tree (Yucca brevifolia) group in desert, Virgin Mountains, Gold Butte National Monument, Nevada

Yva Momatiuk & John Eastcott / Joshua Tree (Yucca brevifolia) group, Joshua Tree National Park, California

Inaki Relanzon,Inaki Relanzon / Joshua tree (Yucca brevifolia) at night, Joshua Tree National Park, California, USA, June 2012.

David Welling / Whitetail Antelope Squirrel (Ammospermophilus leucurus leucurus) feeding in front of wildflowers. Joshua Tree National Park, San Bernardino County, California, USA, May.

Floris van Breugel / Juniper Tree (Juniperus thurifera) at night, silhouetted next to standing rock, Joshua Tree National Park. California, USA, January 2009

Jack Dykinga / Weathered and eroded monzogranite boulders balanced precariously, sunset, Joshua Tree National Park, Mojave Desert, California, USA

Jack Dykinga / Weathered and eroded monzogranite boulders with dikes on crystalline intrusions, sunset, Joshua Tree National Park, Mojave Desert, California, USA

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.