092707StmboatVailFallAspensMP429
SHOT 9/27/2007 - Photos of aspen trees turning yellow as the fall foliage season comes to a peak in Colorado. The aspen trees were located in the White River National Forest near Vail, Co. Populus tremuloides, the Quaking Aspen or Trembling Aspen, is a deciduous tree native to cooler areas of North America and is generally found at 5,000-12,000 feet. The name references the quaking or trembling of the leaves that occurs in even a slight breeze due to the flattened petioles. It propagates itself by both seed and root sprouts, and extensive clonal colonies are common. Each colony is its own clone, and all trees in the clone have identical characteristics and share a root structure..(Photo by Marc Piscotty/ © 2007)
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