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Quercus macrocarpa (Bur Oak), flower, pistillateJune 23 2015
Hedborn Jr., Edward A.
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Quercus macrocarpa (Bur Oak), flower, staminateApril 27 2010
Hedborn Jr., Edward A.
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Quercus macrocarpa (Bur Oak), fruit, immatureAugust 15 2014 at 20:00
Brown, Deborah J. G.