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Juglans nigra (black walnut), twig
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Juglans nigra (black walnut), twig
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Populus (poplar), unidentified species, catkins
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Juglans nigra (black walnut), pith
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Populus deltoides (eastern cottonwood), male flower detail
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Juglans nigra (black walnut), bark
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Populus deltoides (eastern cottonwood), male catkins and budsApril 16 1959
Scott, Marion
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Populus deltoides (eastern cottonwood), emerging catkins and budApril 16 1959
Scott, Marion
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Populus deltoides (eastern cottonwood), male catkin, early springApril 1962
Scott, Marion
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Populus deltoides (eastern cottonwood), female catkin and budMay 1962
Scott, Marion
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Populus deltoides (eastern cottonwood), catkin flower and budMay 1962
Scott, Marion
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Populus deltoides (eastern cottonwood), male catkin in pollenMay 1962
Scott, Marion