Pando is a giant aspen clone in central Utah that has been regrowing parts of itself for up to 80,000 years — but new threats mean the plant is now in decline.

Pando, a massive aspen colony in Utah, is the largest living organism on Earth. It covers over 100 acres and weighs about ...

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 ...

An initiative to save one of Scotland's most endangered species of tree has been launched in the Cairngorms National Park. Aspen provides a vital habitat for rare wildlife, plants and fungi and is ...

After the summer months when tourism is tapering off in Flagstaff, the changing colors of the aspen trees bring people up the mountain to peep the rainbow of leaves on the San Francisco Peaks and ...

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 ...

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 foliage but ...