Trembling aspen are known for their leaves, broad with flattened leaf stems that catch the breeze and, well, tremble! But that motion is more than just hypnotizing; it helps the leaves ...

Aspen has distinctive, almost-circular leaves with flattened petioles or stems. This flattening causes the leaves to tremble or flutter in the slightest breeze, thereby giving the tree one of its ...

A Colorado-based company is installing a new art exhibit on the 16th Street Mall to make it look like a canopy of aspen trees ...

During drought, aspen close off microscopic openings in their leaves, a survival measure that slows water loss but also slows the uptake of carbon dioxide, required for photosynthesis. As a result ...

Aspen form individual patches comprised of numerous stems, termed ramets, each with its own trunk, branches, leaves and a shared root system (Figure 2). All of these structures arose from a single ...