Canon EOS 350D, 18mm, 1/320sec, F/11, ISO-400
April 8/2009 Joshua Tree NP, California, USA
The Cholla Cactus Garden is located on the gentle northwestern bajadas of Joshua Tree’s Pinto Basin. This area lies within the ecological transition zone between the Mojave and Colorado deserts.
All cholla have woody skeletons and jointed branches. Its stem segments are not truly cylindrical, but rather a series of connected, raised tubercles from which spine-bearing areoles emanate. The spines of most cholla are covered with a papery sheath that reflects sunlight and protects the stems from overheating. This feature is especially pronounced in the Teddy Bear Cholla.
The Cholla Cactus Garden Trail circles through a dense forest of Teddy Bear Cholla, Silver Cholla and Creosote.