American And Slippery Elm

   
Ulmus americana (American elm-smaller, left), Ulmus rubra (Slippery elm-right) American and Slippery elm

Description
A comparison of Ulmus americana (smaller on the left), and Ulmus rubra (larger,right). Note the 'chippier' look of the bark of the American elm and the more furrowed bark of the Slippery elm