Wahoo, or Winged Elm, a tree native to the southern United States. Its fruit grows singly in elliptical pods, called keys or samaras, that have two broad, corky wings. The tree has saw-toothed leaves, which turn yellow in the fall. The fibrous inner bark was formerly used as twine for baling cotton.

The winged elm is Ulmus alata of the elm family, Ulmaceae.