Bigtooth Aspen is named for the large, irregular teeth on its leaves — much coarser than the fine-toothed Trembling Aspen. It is a fast-growing, short-lived pioneer tree of the northeastern US and southeastern Canada, quickly colonizing disturbed areas after fire, logging, or windthrow. Like all aspens, it reproduces primarily by root sprouting, forming dense clonal thickets. The young bark is greenish-white and photosynthetically active in winter, providing energy when the tree has no leaves.
Best time to see a Bigtooth Aspen
The best time to see a Bigtooth Aspen is May–September, when about 61% of U.S. sightings happen, based on 12,583 research-grade iNaturalist observations.
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