USA, California, Joshua Tree National Park, Joshua trees and rock outcrops in the Mojave Desert. USA, California, Joshua Tree National Park.

USA, California, Joshua Treee National Park, Cactus in Cholla Cactus Garden. USA, California, Joshua Tree National Park.

USA, California, Joshua Treee National Park, Cactus in Cholla Cactus Garden. USA, California, Johua Tree National Park.

Agave, Royal agave, Agave victoriae-reginae, Detail of green leaves showing pattern.

Lewisia, Heckner's lewisia, Lewisia Cotyledon var. heckneri, Mass of pink coloured flowers growing outdoor.

California fuchsia, Rbes speciosum, Growing outdoor against stone wall.

California fuchsia, Rbes speciosum, Growing outdoor against stone wall.

Saguaro cactus, Carnegiea gigantea, Dramatic view from below of a single stem with arms branching upwards towards a blue sky with wispy clouds, its shadow on a white wall.

Icelandic poppy, Papaver nudicaule, Close cropped view of yellow flower with yellow stamens against blue sky,

Mizuna, Brassica rapa nipposinica, Top view of a mass of salad leaves with deeply cut edges.

Bristlecone fir, Abies bracteata, Close view of two sprigs showing the cones forming at the tips.

California poppy, Eschscholzia californica 'Carmine King', overhead view of pink flower showing yellow stamen with leaf in soft focus behind.