This aspen was used in traditional medicine to treat pain and inflammation. Its leaves are also a vital food source for caterpillars of several different species. 4. Japanese Aspen (Populus sieboldii) ...

Aspen has distinctive, almost-circular leaves with flattened petioles or stems. This flattening causes the leaves to tremble or flutter in the slightest breeze, thereby giving the tree one of its ...

The ability of aspen to produce whole stands of "trees" vegetatively provides yet ... Why do quaking aspen leaves quake and tremble? The leaves of this species quake, shake and tremble in the ...