aspen

1. Any of several trees of the genus Populus having leaves on flattened stalks so that they flutter in the lightest wind (synset 112754407)
   is a type of: poplar, poplar tree - any of numerous trees of north temperate regions having light soft wood and flowers borne in catkins
   subtypes:

   • 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
   • big-toothed aspen, bigtooth aspen, bigtoothed aspen, canadian aspen, large tooth aspen, large-toothed aspen, populus grandidentata - aspen with a narrow crown; eastern North America

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