Generally, all aspen trees live in colder regions with cool summers, particularly in the north of the northern hemisphere.

Aspens are one of Scotland's rarest and most important trees An initiative to save one of Scotland's most endangered species of tree has been launched in the Cairngorms National Park. Aspen ...

Scientists have confirmed that one of Earth's most remarkable living beings—a massive forest of quaking aspen trees in Utah known as Pando—is between 16,000 and 80,000 years old, solidifying ...

Populus tremuloides, the quaking aspen of the North American continent, stands as one of the most easily recognized, most beautiful and most admired of all tree species. In order to help ...

DNA samples from one of the world’s largest and oldest plants — a quaking aspen tree (Populus tremuloides) in Utah called Pando — have helped researchers to determine its age and revealed ...

FLAGSTAFF — Beneath the scenic yellow and red leaves of soaring aspen trees in the Kachina Wilderness, forest ecologist Mike Stoddard is looking down. His concern isn’t the brilliant fall ...