The aspen tree (Populus tremuloides) is the most widely distributed tree species in North America, ranging from Alaska to Newfoundland and down the Rocky Mountains to Mexico. Utah and Colorado ...

A single aspen clone often covers less than an acre, but sometimes more—even much more. Sometimes a tree is its own forest. In south-central Utah, up near 9,000 feet on the Colorado Plateau ...

For many years, most western forest ecologists thought aspen reproduction from seeds was ... in the stabilized members of the pairs. This tree species seems to almost have it all: powerful ...

It was an aspen tree, not one yet showing off the shiny leaves we seek this time of year. Maybe they would never show. “I saw the orange hue on the bark,” said Korb, who has researched the ...

Aspen trees are the mostly widely distributed native tree species in North America, found throughout many northern U.S. states, the entire length of the Rocky Mountains, and a huge swath of Canada.

A new decade-long study by University of Wisconsin researchers reveals how aspen trees can change their genetic structure to compete for sunlight and defend themselves against pests like ants, moths ...

ASPEN – An Aspen homeowner and a landscaper he enlisted to prune limbs from a neighbor’s tree were both fined $550 by the city of Aspen as part of an agreement announced Wednesday in Municipal ...

A large ponderosa pine along the Roaring Fork River north of Carbondale inside the Aspen Glen development that has been home to several bald eagles and their young over the decades, has fallen. The ...

ASPEN – Smuggler Mountain Road and various trails on the mountain flanking Aspen will be closed on either June 14 or 15, depending on the weather, while a helicopter hauls trees that will be felled to ...

Although aspens can produce seeds, the most successful method of reproduction occurs when ... The new sprout is a clone of the original tree, and many cloned aspen trees can grow from the same ...