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Trembling Aspen

Populus tremuloides • Quaking aspen


Trembling aspen is a medium sized tree that usually grows up to 25 meters tall. It is native to North America and has a similar range to it’s close relative, the balsam poplar. Trembling aspen occurs all over Ontario except the most northern fringe near Hudson Bay. It occurs throughout all forested areas of Canada. Trembling aspen is a remarkable species for quick growth and establishment on poor, disturbed or burnt areas, but is not recommended for many residential situations due to a large suckering root system and weak wood.



Leaves dark green above and paler underneath. Widely oval, with 20-30 uneven teeth on both sides. Leaf stalk flattened near base of leaf - gives it the trembling effect.


Hanging catkins, 10 cm long. Seeds are tipped with a tuft of silky white hairs.


Young bark smooth, pale greenish-grey to almost white with dark, diamond-shaped marks. Mature bark dark grey and furrowed.


Tiny, with male and female flowers in hanging catkins on separate trees. Flowers in early spring.

186 Trees

Heritage Tree

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