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During my recent road trip, Aspen trees were a familiar sight at Glacier National Park, Mt Rainier National Park, Great Basin National Park, and on the side of Highway 145 from Montrose to Cortez, CO. It was impossible to miss them as whole swaths of yellow Aspens ran up almost to the top of some mountains.
These trees can grow at elevations ranging from 5,000 ft (1,524 m) to 12,000 ft (3,657 m). Their leaves are heart-shaped and attached to branches by long, slender stalks (petioles), which make the leaves flutter at the slightest breeze, hence their name: Quaking Aspen. That also makes photographing these trees difficult when it is windy, for then the quaking leaves become just blurry smudges on a photo.
The first Aspens I saw were at Glacier National Park in Montana, along the way to Two Medicine lake. It was early September and some trees were just beginning to turn yellow.
Two weeks later, at Great Basin National Park in Nevada, Aspens were literally covering the mountain slopes along Wheeler Peak Drive.
Aspens were lining up both sides of the hiking trail leading to Wheeler Peak Bristlecone Pine Grove.
While the above photo shows trees distinct from one another, all of them may actually be clones from one tree. Trees usually grow from seeds, but Aspens tend to reproduce from root sprouts. Because of that, Aspen groves are resilient and regrow quickly after a forest fire, though individual trunks normally only live about 150 years. However, the root system continues to be alive and new sprouts will eventually replace the dead trees.
In 1968 a clonal colony of 40,000 Aspens was discovered near Fish Lake in Utah and has been called Pando or The Trembling Giant. By 1992 researchers using DNA techniques declared the Pando clones to be all from one original tree, and the roots to be 80,000 years old. Some even claim that Pando is older, perhaps as much as 1 million years old. Pando covers 106 acres (43 hectares) and is said to weigh 13,000,000 pounds (6,000 tonnes). I did not drive by Fish Lake this time, but the following shots will give you an idea of what these Aspen clonal colonies look like.
MJF Images said:
Lovely. Looks like a great road trip!
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neihtn2012 said:
It was indeed a great road trip. Thank you for dropping by and commenting.
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DG MARYOGA said:
Good morning Hien!My comment was rather long for you to read … Thanks anyhow 🙂
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neihtn2012 said:
Doda, I now see your comment below! Thank you.
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AmyRose🌹 said:
Absolutely fascinating bio on Aspen trees, Neihtn, and just jaw dropping images as well. To think a colony of trees exist with a root system that is about 1 million years old blows my mind! There is so much grace and magnificence in these trees. The splendor just catches my breath! What a feeling it must have been to be there in person!! Great post and I do thank you for sharing it! Love, Amy ❤
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neihtn2012 said:
Come to think of it, it’s possible that these trees predate humans. Thank you for a great comment, Amy!
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BookOfBokeh said:
Beautifully caught and rendered!
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neihtn2012 said:
Thank you John!
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DG MARYOGA said:
Wonderful post,amazing photos with Aspen trees in Autumn!Their heart-shaped leaves take a legendary golden colour this season.Interesting illustrations about their reproductive ability,Hien!Also,when I saw the title of your post,I was wondering about the epithet before their name.It perfectly describes the sound.It reminds me of the poplar trees with the silver leafage that rhythmically quack at the soft breeze.
There is a species in Greece which is called Populus tremula and belongs to the same family,but the leaves never turn that colour before getting dry.Now,I know thanks to the article you included in a recent post.
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neihtn2012 said:
Doda, somehow I missed your wonderful comment. My sincere apologies! Populous tremula must be a cousin of Populus tremuloides which we have here in North America. I never knew that your trees don’t turn yellow in the fall. I wonder why. Thank you for this very interesting comment!
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DG MARYOGA said:
Thank you Hien for your light.I have noticed that your knowledge on nature is so rich.I am talking only about this specific species,others do.
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neihtn2012 said:
There is a lot that I still have to learn, Doda. Nature is so immense and diverse.
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DG MARYOGA said:
Absolutely 🙂
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Eliza Waters said:
Gorgeous shots and so interesting about clonal aspect of aspens – truly fascinating that they could be that old!
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neihtn2012 said:
Thanks Eliza! Most of us would have never thought they could be that old.
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Dalo 2013 said:
I remember driving through Wyoming (Teton into Yellowstone) and being mesmerized by the aspens…so seeing your post here I feel exactly what you are showing and saying…something special with those trees, leaves and the season. Learning of the clonal root system in your post now cements ‘quaking aspens’ as one of my favorites. Enjoy your week Hien.
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neihtn2012 said:
I remember coming by air into Jackson and watching those patches of yellow as the plane flew closer and closer to the mountains. Maybe I’ll try to dig out some photos of Aspens from Grand Teton and Yellowstone. Thank you Randall for commenting and reminding me. 🙂
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Ventureprone said:
Wonderful photos and fascinating info about the Aspen colonies!
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neihtn2012 said:
Thank you for stopping by and commenting. Glad you like this post!
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Tiny said:
Both beautiful and informative! I grew up with Aspen nearby, and have seen many of them clustered together, but had no idea about their root system and how it works.
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neihtn2012 said:
I had no idea either until I started doing some research on Aspens. Thank you Tiny!
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RV John said:
Beautiful photos and interesting information about their regrowing from roots!
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neihtn2012 said:
Thanks John. Maybe you’ll get a chance to swing by Fish Lake?
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RV John said:
Fish lake Utah? No, I’ll be staying where it is nice and warm 🙂
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Sue Slaght said:
Such absolutely gorgeous photos. The last one especially grabs my eye. I had no idea about the potential of the age of the rooting system. Very interesting post!
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neihtn2012 said:
I tend more toward 80,000 years versus 1 million years. Even at that Pando would still predate most humans!
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Mary said:
Beautiful – the warmth of the season comes through your wonderful shots!
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neihtn2012 said:
Thank you Mary!
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Jet Eliot said:
I just LOVE aspens, and your post is a wonderful tribute to this glorious tree. Your photos are spectacular–great close-ups and overviews; and I enjoyed reading about their curious clonal root systems and growth. Great post, Hien.
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neihtn2012 said:
Glad you like this post, Jet! Thank you for commenting so kindly.
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