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Salicaceae

 14-Populus deltoides male catkin

[FMP-field: image]
In the genus Populus, as in the genus Salix, both the male and female flowers are in catkins. This image shows a male catkin of Populus deltoides, eastern cottonwood.
Photo by K. R. Robertson and D. L. Nickrent of a tree cultivated in Champaign, Illinois.
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