Common name: Trembling aspen, quaking aspen, trembling poplar
Populus tremuloides is a tall deciduous tree native to all provinces of Canada (except Nunavut) south into Mexico, usually at elevations higher than 500 m (1500 ft). It has whitish bark and small green leaves which rustle in the wind. Our colony is found near the Medicine Wheel.
It propagates itself through root sprouts into clonal colonies. One such clonal colony in Utah is the largest single living organism in the world.
Leaf close-up: James St. John, via Wikimedia Commons
Fall colour: Coconino National Forest, via Wikimedia Commons
Map: U.S. Geological Survey, via Wikimedia Commons