For some deciduous trees winter does not mean a complete cessation in photosynthetic activity or growth.

Ian Breckheimer is a research scientist at Rocky Mountain Biological Laboratory in Gothic, Colo. He knows a lot about plants — aspen trees included.

Aspen trees are getting a boost from wolves at Yellowstone National Park, new research suggests. For the first time in 80 years, baby aspens are growing tall and healthy in the northern part of ...

Throughout the mountains of the American West, carvings hidden on the trunks of aspen trees tell the stories of the sheepherders who made them as they passed through with their flocks. Most of the ...