One of the largest and oldest known living organisms on the planet is in Fishlake National Forest, Utah. It has an estimated weight of 6,600 tons, covers 107 acres and is about 80,000 years old.
What most would see as a forest, is actually a single organism, a Quaking Aspen (Populus tremuloides) to be specific. One way these trees reproduce is through “suckers”, where new trees sprout from lateral roots.
This single organism had such ideal conditions for so long that it was able to spread itself so far and live for so long.