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