The gorgeous golden hues of quaking (or trembling) aspen tree leaves are one of the harbingers of fall in many western U.S. states, from Alaska to New Mexico. Learn numerous interesting facts about quaking aspens, including why aspen trees are described as quaking. Then discover some of the traditional and more modern-day human uses of aspen trees. Enjoy the included photos of quaking aspen trees.
Interesting Facts about Quaking Aspen Trees
The scientific name for the trembling aspen or quaking aspen tree is Populus tremuloides. Trembling aspens’ “quaking” is a term that describes the distinctive, rather metallic clatter that aspen trees’ leaves make when they’re ruffled by a breeze. Changing aspen leaves are a coveted autumn sight to view and photograph in mountain states, particularly Colorado.
One of the Largest Organisms on Earth
Most people probably don’t realize that aspen trees are the stems of one of the earth’s largest living organisms. Hundreds or even thousands of trees (which are clones, or identical genetically to one another) can be joined underground by a single root network and can live for thousands of years. The leaves of aspen trees sharing root systems (or clones) turn at the same time in autumn, often creating a brilliant singular display of color.
Forest Fires and Aspen Trees
Stands of trembling aspen trees in U.S. mountain states have diminished in quantity, largely due to forest fire management by humans. When an area is burned, the mature trees (which are more susceptible to disease and insect infestation) are cleared out, but the clone root systems remain. They can then send up healthy new growth, or “suckers,” that become new aspen trees. While aspens can reproduce by seed, this is not common.
The Various Uses of Trembling Aspen
Aspen trees have been used in many ways both traditionally and in modern times. According to Linda Kershaw in Edible & Medicinal Plants of the Rockies (Lone Pine Publishing, 1998), American Indians would brew an aspen bark tea to treat numerous ailments, as it contains a substance called salicin, which is similar to the active ingredient in aspirin. Aspen wood was also used to make a variety of daily living items, including bowls and paddles.
Today, according to Kershaw, aspen wood is used for pulp as well as to make chopsticks, sauna seats, and playground equipment, since it is lightweight and splits easily but doesn’t splinter. Another potential use for aspen wood, which could actually help aspen tree stands stay healthier by encouraging regrowth, is to harvest mature trees for the creation of unique, lightweight furniture with distinctive character.
Learn More about Quaking Aspen Trees
Quaking aspen are an interesting species in many ways. The turning leaves of trembling aspen trees provide a gorgeous annual fall sight in the western United States. One of earth’s largest organisms, aspen trees reproduce most successfully by cloning. Forest fires can actually promote healthier stands of aspen trees. Human uses of quaking aspen trees have included traditional aspen bark teas as well as many uses of aspen wood.
References/For Further Reading:
- Edible & Medicinal Plants of the Rocky Mountains, by Linda Kershaw (Lone Pine Publishing, 1998)
- Plants of the Rocky Mountains, by Linda Kershaw, Andy MacKinnon, and Jim Pojar (Lone Pine Publishing, 1998)
- Trees of Colorado Field Guide, by Stan Tekiela (Adventure Publications, 2007)
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