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Quercus rubra (northern red oak), tree trunk and barkNovember 1968
Coulter, Ronald M.
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Quercus rubra (northern red oak), tree trunk and barkNovember 1968
Coulter, Ronald M.
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Quercus rubra (northern red oak), bark, twig and buds detailApril 1978
Kohout, Kitty
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Quercus rubra (northern red oak), emerging catkins and leaves detailDecember 1972
Reynolds, P. J.
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Quercus rubra (northern red oak), female flowers detailDecember 1972
Reynolds, P. J.
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Quercus rubra (northern red oak), emerging flowers and leaves detailApril 1978
Kohout, Kitty
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Quercus rubra (northern red oak), bud detail
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Quercus rubra (northern red oak), habit
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Quercus rubra (northern red oak), immature acorn cups detailDecember 1972
Reynolds, P. J.
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Quercus rubra (northern red oak), russet leaf