Candelabra tree, Euphorbia candelabrum, Side view showing pattern against a blue sky.-

Cactus, Golden Barrel Catus, Echinocactus Grusonii var. Subinermis, Aerial view showing pattern of the spiky needles.-

Cactus, Golden Barrel Cactus, Echinocactus grusonii, Detail of spiky plant showing mass of needles.-

Cactus, Golden Barrel Cactus, Echinocactus grusonii, Aerial view of spiky plant showing mass of needles.-

Prickly pear cactus, Opuntia cochenillifera, Side view of older leaf with newer fresh leaf growing from it.

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.

Pincushion cactus, Mammillaria bombycina, Close top view showing pink flowers emerging out of one spine covered shoot.

Candelabra tree, Euphorbia candelabrum, Side view of several ridged spikey columns in sunlight against a blue sky.

Cactus, Golden barrel cactus, Echinocactus grusonii, Cropped view of several plants with spikey spines on the many ribs, one with tiny pieces of white fluff trapped on them.

Cactus, Golden barrel cactus, Echinocactus grusonii, Cropped view of several plants with spikey spines on the many ribs, one with tiny pieces of white fluff trapped on them.

Agave, Giant agave, Agave salmiana, Close view of grafitti scratched into the fleshy leaf.

Agave, Giant agave, Agave salmiana, Close view of grafitti scratched into the fleshy leaf.