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Leaves showing alternate arrangement and serrated margins

Photo credit: Vern Wilkins, Indiana University, Bugwood.org

Close-up of wings on branchlets

Photo credit: Vern Wilkins, Indiana University, Bugwood.org

Typical trunk with grooves and ridges

Photo credit: Karan A. Rawlins, University of Georgia, Bugwood.org

Fruits in late winter

Photo credit: Franklin Bonner, USFS (ret.), Bugwood.org