aspen

/ˈæspən/

Other forms: aspens

Definitions of aspen

1. noun

   any of several trees of the genus Populus having leaves on flattened stalks so that they flutter in the lightest wind
   types:

   European quaking aspen, Populus tremula, quaking aspen

   Old World aspen with a broad much-branched crown; northwestern Europe and Siberia to North Africa

   American aspen, American quaking aspen, Populus tremuloides

   slender aspen native to North America

   Canadian aspen, Populus grandidentata, big-toothed aspen, bigtooth aspen, bigtoothed aspen, large tooth aspen, large-toothed aspen

   aspen with a narrow crown; eastern North America

   type of:

   poplar, poplar tree

   any of numerous trees of north temperate regions having light soft wood and flowers borne in catkins