Populus tremuloides quaking aspen
Populus tremuloides quaking aspen---they are dioecious with male and female flowers on separate trees
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Populus tremuloides quaking aspen---flower buds
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Populus tremuloides quaking aspen
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Populus tremuloides quaking aspen
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Populus tremuloides quaking aspen---they produce flowers before leaves in the spring
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Populus tremuloides quaking aspen
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Populus tremuloides quaking aspen---male flowers
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Populus tremuloides quaking aspen---red anthers containing pollen
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Populus tremuloides quaking aspen
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Populus tremuloides quaking aspen
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Populus tremuloides quaking aspen
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Populus tremuloides quaking aspen
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Populus tremuloides quaking aspen---female tree forming seeds
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Populus tremuloides quaking aspen---female tree forming seeds
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Populus tremuloides quaking aspen---early May
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Populus tremuloides quaking aspen---young leaves
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Populus tremuloides quaking aspen---with two insects
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Populus tremuloides quaking aspen---with young leaves
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Populus tremuloides quaking aspen---Deer and elk use young aspens to clean their antlers in autumn
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Populus tremuloides quaking aspen---autumn leaves
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