Quaking Aspen is the most widely distributed tree in North America, known for leaves that tremble in the slightest breeze due to their flattened leaf stalks. Clonal aspen groves are genetically identical organisms connected by root systems, with Pando in Utah estimated to be the largest living organism on Earth at 6,000 tons. Fall color is spectacular golden-yellow.
Best time to see a Quaking Aspen
The best time to see a Quaking Aspen is June–September, when about 61% of U.S. sightings happen, based on 39,415 research-grade iNaturalist observations.
Not certain it is a Quaking Aspen? What plant is this? walks through what to check first and the lookalikes that catch people out.
Recent Quaking Aspen sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
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