Populus tremuloides

Also known as Trembling Aspen, American Aspen, Golden Aspen, Trembling Poplar

Quaking aspens paint mountainsides in brilliant gold each autumn, their leaves trembling in the slightest breeze due to uniquely flattened petioles. These trees form massive, interconnected clonal colonies through a shared root system, creating some of the largest and oldest living organisms on Earth. Their smooth, greenish-white bark performs photosynthesis even in winter, providing vital energy when the leaves are gone.