Pando is an ancient quaking aspen tree (Populus tremuloides ... Some of Pando's stems are more than 130 years old, according to the Forest Service, and the plant should continuously regenerate ...

Next they turned to fire to see if possibly a reduction in the number of forest fires ... that most the trees were at least 70 years old. It appeared that the aspen trees had stopped regenerating ...

ALBUQUERQUE, N.M.— The Center for Biological Diversity called on the U.S. Forest Service today to stop cutting down old-growth trees on northern Arizona’s Kaibab Plateau, an antiquated practice that ...

Pando is a quaking aspen tree found in Utah's Fishlake National Forest in Sevier County ... suggested it's between 16,000 and 80,000 years old, though the research hasn't yet been peer-reviewed.