In the foothills, smooth sumac leaves and fruits turn brilliant red, fragrant sumac assumes colors from yellow through somber reds to purple and grasses turn yellow to russet, depending on species.

Although individual quaking aspen trees usually live for about 50 to 60 years, and sometimes up to 150 years, the entire clone can live for tens of thousands of years.

The glowing yellow leaves of an aspen grove left us wondering: ... The quaking aspen is a tree of many names: trembling aspen, American aspen, golden aspen, white poplar, ...

The bigtooth aspen (Populus grandidentata) is a close relative of the much more widespread quaking aspen (P. tremuloides). Both species are referred to as pioneer species, because of their ability ...

This is our celebrated tree of fall, the quaking aspen so named for those leaves that flicker in the breeze, twinkle in the sun and stir our souls. Maybe you didn't know that about the name.

Sept. 21 -- A gentle breeze wafting across the American West sends the heart-shaped leaves of the quaking aspen into a frenzy, filling the forest with a gentle roar as they whisper the sounds of ...

The leaves of disease-resistant Prairie Gold quaking aspen turn a beautiful golden-yellow in autumn. Once upon a time I lived in the mountains of central New Mexico. A favorite autumn adventure ...

Editor’s note: This is the first of two parts. Look for the second part in Sunday’s Vail Daily. EAGLE COUNTY — The Colorado blue spruce is the state tree, but it is the quaking aspen that is the best ...

When I think of a "cheery" tree, I think of quaking aspens. Why cheery you might ask? While there are no leaves this time of year, find one in the spring and shake a branch… the leaves tremble ...

The heartwood of quaking aspen was once considered to be worthless by loggers. The tree even had the nickname "weed tree" in some parts of the mountains. But the modern lumbering industry now sees qua ...