Some aspen trees have grayish-white bark when they are young or on higher branches, but the bark won’t peel like paper birch.

Armed with chainsaws and pry bars, researchers recently hastened the end for nearly 7,000 mature aspen and birch trees in a large-scale, long-term experiment to glimpse the Great Lakes region's ...

As part of our Scotland’s Wonderful Wildlife series, Alan Watson Featherstone reveals the many threats faced by Scotland native aspen trees – a species that created the world oldest and ...

In mixed stands of aspen and birch subjected to elevated carbon dioxide levels, birch trees increased recent nitrogen acquisition by 68 percent, compared to a 19 percent increase among the aspens.