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Betula nigra (birch) in winter
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Betula nigra (River Birch), leaf, lower surfaceOctober 12 2013
Hedborn Jr., Edward A.
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Betula nigra (River Birch), leaf, lower surfaceSeptember 30 2009
Hedborn Jr., Edward A.
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Betula nigra (River Birch), leaf, upper surfaceOctober 12 2013
Hedborn Jr., Edward A.
Photographic image
Betula nigra (River Birch), leaf, upper surfaceSeptember 30 2009
Hedborn Jr., Edward A.
Photographic image
Betula nigra (River Birch), leaf, upper surfaceSeptember 30 2009
Hedborn Jr., Edward A.