Pando
Pando is a clonal colony of quaking aspen (*Populus tremuloides*) in Fishlake National Forest, Sevier County, Utah, United States.
Pando is a clonal colony of quaking aspen (Populus tremuloides) in Fishlake National Forest, Sevier County, Utah, United States. It is widely described as the world's largest tree by area and mass, and as one of the oldest living organisms, with an estimated age of tens of thousands of years.
Description
Pando is a clonal colony of quaking aspen in southern Utah. The many visible trunks are individual stems of one organism connected by a shared root system. Its visible stems are genetically identical, making it a single genetically connected aspen colony rather than a stand of separate trees.
Size and age
Sources describe Pando as covering about 106 acres (42.8 hectares) and weighing around 13 million pounds. Estimates of its age vary, but it is often placed at roughly 60,000 to 80,000 years old.
Ecology and conservation
Pando has been the subject of conservation concern because browsing by deer and livestock can prevent young stems from becoming established. Researchers and land managers have studied regeneration and protection measures to address the ecological pressure from grazing on young sprouts.
Name and significance
The name Pando is commonly explained as Latin for "I spread." The organism is frequently cited in science communication because it challenges common ideas about what counts as a single tree.
Key facts
- Pando is a single genetically connected aspen colony rather than a stand of separate trees.
- It covers about 106 acres in Fishlake National Forest.
- Pando is commonly described as the world's largest tree by land area and weight.
- It is also frequently described as one of the oldest living organisms on Earth.
- The colony faces ecological pressure from grazing on young sprouts.
Pando is mainly relevant to Canadian readers as a landmark example of clonal plant biology and forest ecology often discussed in nature education, conservation, and biology curricula.
Frequently asked questions
What is Pando?
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References
- Wikipedia — https://en.wikipedia.org/wiki/Pando_(tree)Supports: Location in Fishlake National Forest, size, stem count, clonal nature, and broad descriptive facts.
- Friends of Pando — https://www.friendsofpando.org/thepandotree/facts-about-pando/Supports: Area, world’s-largest-tree claim, estimated weight, species, and age estimate.
- Live Science — https://www.livescience.com/planet-earth/plants/pando-the-worlds-largest-tree-and-heaviest-living-organismSupports: Clonal colony description, approximate stem count, area, weight, and age estimate.
- Natural History Museum of Utah — https://www.nhmu.utah.edu/articles/what-oldest-tree-worldSupports: Meaning of the name, size, age estimate, and visitor/location context.
- National Forest Foundation — https://www.nationalforests.org/article/pando-documenting-a-tree-that-redefines-what-trees-can-be/Supports: Pando as a large aspen tree in Fishlake National Forest and weight estimate.
- National Geographic — https://www.nationalgeographic.com/environment/article/the-biggest-living-thing-on-earth-is-being-nibbled-to-deathSupports: Conservation pressure from grazing and the organism’s size and stem count.