Quaking Aspen
Scientific Name: Populus tremuloides
Category: tree
Brief Description
A deciduous tree known for its smooth white bark and leaves that tremble in the slightest breeze.
Characteristics
Smooth, pale greenish-white to grey bark with dark scars; rounded to deltoid leaves with flat petioles that cause them to flutter in the wind; brilliant yellow autumn foliage.
Habitat
Found in forests, woodland edges, and clearings, often forming large clonal colonies through root sprouts.
When to Find It
Best observed in autumn for its striking yellow foliage, or spring when new green leaves emerge.
Conservation Status
Least Concern
Ecological Role
Provides food and habitat for numerous wildlife species, including ungulates, beavers, and birds, and helps stabilize soil after disturbances.
Easily Confused With
Paper Birch (Betula papyrifera), which has peeling white bark with horizontal lenticels rather than dark scars.
Observation Tips
Look for stands of uniform trees with white trunks in northern temperate and boreal regions, especially along forest margins.
Interesting Facts
A single grove of quaking aspens sharing a massive underground root system, known as Pando, is considered one of the largest and oldest living organisms on Earth.