Largetooth Aspen
Populus grandidentata

Location in Ontario
Largetooth Aspen grows throughout Ontario. It grows on well drained sandy soil.

Largetooth Aspen, University of Guelph Arboretum
Genus Populus
Poplars are fast growing trees with soft wood. The leaves are simple. Flowers are mostly dioecious and appear in early spring. Poplars are pioneer species which grow in a newly opened areas such as after a fire or when land is cleared. Some are successional trees along sand dunes.

In the Landscape
Largetooth Aspen is a small tree, growing up to 20 m and living no more than 100 years of age. It is fast growing, and often used in rows, as windbreaks, on large properties and farms. They are planted to help stabilize soil and prevent soil erosion. Poplars should not be planted near water lines, septic systems etc. since they produce many spreading roots.

TREE FACT: Largetooth Aspen is also called Bigtooth Aspen.

Largetooth Aspen fall colours

The leaves are simple and oval with large, uneven teeth. Leaves turn orange-yellow in the fall.
The bark is dark gray and furrowed with age.
Large Tooth Aspen is dioecious with male (pollen) flowers and female (seed) flowers occurring on different trees. Flowers are in catkins, and appear in the early spring before the leaves. Pollination is by wind.
The seeds are found in long catkins produced in the late spring. Seeds produce seedlings easily and quickly, provided there is enough moisture. Seeds are produced after 10 years of growth, every 4 to 5 years.

Largetooth Aspen wood is light and soft.
Specific gravity: 0.39
Janka Hardness:
420 lb
Wood Comparison Chart

White bark of immature Largetooth Aspen, University of Guelph Arboretum

Link to United States Forest Service Silvics Manual for Largetooth Aspen.