Note: Select the link to see a larger photo

Bark showing the vertical ribbons
Photo credit: Larry Korhnak, University of Florida

Leaves showing the alternate arrangement
Photo credit: Larry Korhnak, University of Florida

Leaf showing the asymmetrical base
Photo credit: Paul Wray, Iowa State University | Bugwood.org

Leaf and bark
Photo credit: Tom DeGomez, University of Arizona | Bugwood.org