The aspen tree (Populus tremuloides ... A clone may turn color earlier or later in the fall or exhibit a different fall color variation than its neighboring aspen clones, thus providing a ...

It was a reminder of the phenomenon found to be sweeping Colorado’s favorite tree of fall. Around the turn of this century, scientists starting tracking what became called sudden aspen decline.

Look beyond Colorado’s shimmering yellow aspen trees for wonderful leaf-peeping this fall. Adam Moore ... City Park alone has more than 100 tree species, including some oaks and maples that ...

It is, of course, aspen putting on the dazzling displays. This is our celebrated tree of fall, the quaking aspen so named for those leaves that quake or flicker in the breeze, twinkle in the sun ...

Certain broadleaf trees can be uniquely identified by their brilliant fall leaf color. In some cases, a tree's common name is derived from its primary autumn leaf color, such as red maple and ...

The Populus tremuloides got the name “quaking aspen” because of the way its leaves flutter in the wind, according to the Colorado Native Plant Society. Colorado fall ... When a tree is carved ...

But when the timing or color progression is off, that may signal the tree is struggling. “Because stress does seem to be part of it, early onset of fall color is often a really great indicator ...