Pando is an ancient quaking aspen tree (Populus tremuloides ... to 40 blue whales or three times the world's largest single-stem tree — California's General Sherman giant sequoia (Sequoiadendron ...

A single clone may exhibit multiple colors ... 2008). The ability of aspen to produce whole stands of "trees" vegetatively provides yet another key element in explaining the species’ ability ...

But not all trees follow that formula. Some form what are called clonal groves: swaths of forest connected underground by a single network ... a grove of quaking aspen in Utah's Fishlake National ...

In Scotland today, most aspen reproduction occurs by this method, creating stands of genetically identical trees connected by their shared root systems, forming a single multi-stemmed organism.