Coefficient of Conservatism:
Coefficient of Wetness:
Nearly ubiquitous, like P. grandidentata, but tolerates and thrives in colder and wetter situations; one of the few deciduous trees of the boreal forest to the north of Michigan. Typical of swamps, with both conifers and hardwoods, but often on drier, even sandy sites; characteristically in clearings, after fire or logging.
Sometimes the bark of aspen is so light in color that the trees are mistaken for paper birch, especially by the casual tourist. See also remarks under P. grandidentata.