Pando tree - Aspen clonal colony

The Pando tree is a "clonal colony" which means that this whole grove is one living organism that sends up multiple "stems". Each of what we would consider one "tree" is just a part of this giant living organism. These individual "stems" sprout grow to maturity and eventually age and die and fall over but the organism that they are a part of lives on. The largest known clonal colony is this forest of quacking aspens in Colorado that is estimated to have 40,000 stems and to be as old as 80,000 years.