Claudio Contreras / Ocotillo (Fouquieria splendens) and Saguaro (Carnegiea gigantea) at sunset in Sonoran Desert. El Pinacate Biosphere Reserve, northwest Mexico.

Claudio Contreras / Sonoran Desert with Saguaro (Carnegiea gigantea) and Teddy-bear Cholla (Cylindropuntia bigelovii) cactic, alongside Ocotillo (Fouquieria splendens). El Pinacate Biosphere Reserve, Sonoran Desert, nort...

Claudio Contreras / Sonoran Desert on volcanic soil with Teddy-bear cholla (Cylindropuntia bigelovii), Saguaro (Carnegiea gigantea) and ocotillo (Fouquieria splendens). El Tecolote volcano, El Pinacate Biosphere Reserve,...

Claudio Contreras / Boojum tree (Fouquieria columnaris) at night with the Orion Constellation, Sonoran Desert, Valle de los Cirios Biosphere Reserve, Baja California Peninsula, Mexico, March

Claudio Contreras / Boojum tree (Fouquieria columnaris), Sonoran Desert, Valle de los Cirios Biosphere Reserve, Baja California Peninsula, Mexico, March

Claudio Contreras / Boojum tree (Fouquieria columnaris), Valle de los Cirios Biosphere Reserve, Sonoran Desert, Baja California Peninsula, Mexico, May

Doc White / Boojum tree (Fouquieria columnaris), unique to central Baja California, Mexico

Doc White / Boojum tree (Fouquieria columnaris), unique to central Baja California, Mexico

Doc White / Boojum tree (Fouquieria columnaris), unique to central Baja California, Mexico

Cyril Ruoso / Boojum tree (Fouquieria columnaris) at dusk, Vizcaino Desert, Baja California, Mexico, May.

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

Cyril Ruoso / Boojum trees (Fouquieria columnaris) Vizcaino Desert, Baja California, Mexico, May.