The largest and oldest living organism on Earth is the Pando clone, a quaking aspen colony of over 47,000 trees in Utah that stretches over 106-acres, weighs 13 million pounds, and is 80,000 years old.
Pando - (I Spread)
When the Pando Clone was discovered, scientists named it with a Latin word that means “I spread.” An aspen clone starts with a single seed and spreads by sending up new shoots from the expanding root system. These shoots become trees that are genetically identical.
Pando, located about 1 mile southwest of Fish Lake on State Highway 25, is believed to be the largest organism ever found at nearly 13 million pounds. The clone spreads over 106 acres, consisting of over 40,000 individual trees.
Pando welcomes visitors coming to the Fish Lake Basin from the southwest on SR-25. In the summer the green, fluttering leaves symbolize the relief from summer’s heat that you get coming to the basin. In autumn the oranges and yellows of the leaves as they change color give a hint of the fall spectacular that is the Fish Lake Basin.
Visitors from many states, as well as other nations have travelled to central Utah to see and experience Pando, especially during the fall season when the leaves turn to yellow and orange. In 2006 the U.S. Postal Service honored the Pando Clone as one of the “40 Wonders of America” with a stamp in its commemoration.
And yet, Pando is struggling. Like many stands of aspen, disease and insect infestation coupled with years of fire suppression and hungry mouths have taken their toll. However, employees of the Fishlake National Forest along with partner organizations are doing something about it.
https://www.fs.usda.gov/detail/fishlake/home/?cid=STELPRDB5393641
https://qz.com/1151730/the-worlds-largest-and-oldest-organism-is-super-stressed-out/