Patricio Robles Gil / Cardon (Pachycereus pringlei) cactus and flowering Common Morning Glory (Ipomoea purpurea) vines in the Miquihuana Desert, northeast Mexico

Patricio Robles Gil / Cardon (Pachycereus pringlei) cactus and flowering Common Morning Glory (Ipomoea purpurea) vines in the Miquihuana Desert, northeast Mexico

Patricio Robles Gil / Cactus in the Miquihuana Desert, part of the Great Chihuahuan Desert, Tamaulipas, northeast Mexico

Patricio Robles Gil / Giant Barrel Cactus (Ferocactus diguetii) and Agave (Agave sp) in Miquihuana Desert, part of the Great Chihuahuan Desert in Tamaulipas State, northeast Mexico

Patricio Robles Gil / Common Morning Glory (Ipomoea purpurea) flowering vines in the Miquihuana Desert, northeast Mexico