The bark of older trees is deeply furrowed. The Fremont cottonwood (Populus fremontii), also known as the western cottonwood or the Rio Grande cottonwood, occurs in California east to Utah and ...

The western boundary is not well defined because ... Fire generally kills eastern cottonwood. Mature trees with thick bark may be only scarred or top-killed. Fire scars may facilitate the onset ...

This tree, an eastern cottonwood, stands about 85 feet tall and is more than 100 years old. It’s a well recognized landmark ...

A 100-foot cottonwood tree obstructs drivers from all directions ... at this tucked-away spot near the Western Skies Byway.

Snow in June — it happens every year. This snow, though, is made up of the fluffy cotton-like seeds that float off cottonwood ...

Yes, snow. And for that I can thank the majestic Eastern cottonwood tree that has been growing on the farm on the edge of a creek since, well, before the farm was cultivated. It was growing there ...

Cottonwood fluff occurs when cottonwood trees release their seeds each spring, according to Lynn Pillitteri, a professor of biology at Western Washington University whose research focuses on plants.