Close up of the leaves of Quaking Aspen (Populus tremuloides). Another species on Pacific Northwest native tree available at Sparrowhawk Native Plants in Portland, Oregon.
Growth habit of Quaking Aspen (Populus tremuloides). Another species on Pacific Northwest native tree available at Sparrowhawk Native Plants in Portland, Oregon.
Grove of Quaking Aspen (Populus tremuloides). Another species on Pacific Northwest native tree available at Sparrowhawk Native Plants in Portland, Oregon.
Buds and fruit of Quaking Aspen (Populus tremuloides). Another species on Pacific Northwest native tree available at Sparrowhawk Native Plants in Portland, Oregon.

Quaking Aspen

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Populus tremuloides

  • Size at maturity: 50' tall, 20-25' wide
  • Canopy layer: large tree
  • Light requirements: full sun
  • Moisture requirements: moist soil
  • Growth rate: fast

Green catkin flowers in spring on male trees; leaves appear to shake in wind; smooth bark; spreads by root runners. (Native Plants for Willamette Valley Yards, Metro, 2013)

 

Photo Credit 1 & 2: "Populus tremuloides (quaking aspen) (Rocky Mountains National Park, Colorado, USA) 5" by James St. John is licensed under CC BY 2.0

Photo Credit 3: "Quaking Aspen" by ZionNPS is licensed under CC BY 2.0

Photo Credit 4: "Populus tremuloides" by Matt Lavin is licensed under CC BY-SA 2.0