Quaking aspen can be found from Alaska to ... For many years, most western forest ecologists thought aspen reproduction from seeds was so rare as to warrant a publication of a single found ...

In Scotland today, most aspen reproduction occurs by this method ... In North America, the closely related quaking aspen (Populus tremuloides) is found in much of Canada and the northern USA.

The sprawling lump of quaking aspen (Populus tremuloides ... with a network of 47,000 stems that were created through asexual ...