An organ pipe cactus (<i><a href="//commons.wikimedia.org/wiki/Stenocereus_thurberi" class="mw-redirect" title="Stenocereus thurberi">Stenocereus thurberi</a></i>), at Organ Pipe Cactus National Monument, Southern Arizona.
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<span class="int-own-work" lang="en">Own work</span>