Quaking aspen is a fast growing, short lived poplar most commonly found in the northern part of the midwest. When young, they can be easily confused with paper or gray birch as the bark is white. Site preference is moist to medium soils that are well drained in full sun. Like members of the Willow Family, quaking aspen is dioecious. It’s name comes from the leaves which will “quake” in the wind.