The bark of Slippery Elm is brown and deeply furrowed. The inner bark of Slippery Elm twigs was formerly chewed for relief of throat ailments. The twigs are hairy but not corky. The fruit is large and flattened. Slippery Elm wood is similar to that of American Elm wood is similar to that of American Elm. Coarse, hard, and heavy, it makes fencepost.
Slippery and Winged Elms are both eastern trees, though the former ranges farther north and west. Winged Elm or Wahoo has small leaves (1 to 3 in. long) and fruit. The corky outgrowths or wings on the twigs give it its name.
