Aspens in Winter
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| © 2006 Ed Collacott |
Aspens are distinguished by their nearly round leaves on mature trees, 4-12 centimeters in diameter with irregular rounded teeth. They are carried on strongly flattened leaf stems, that cause the leaves to twist and flutter in slight breezes. Aspens are all native to cold regions with cool summers, in the north of the Northern Hemisphere, extending south at high altitudes in the mountains. |
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