Leaves – simple, deciduous ... Bark – grayish with interlacing ridges and alternating light and dark layers of inner bark. American elm (Ulmus americana) is a member of the Ulmaceae family, a group ...

Leaves – Similar to U ... Since the Siberian elm is non-native and appears to have resistance to the disease, it has been used to cross with the American elm (U. americana) in order to produce an ...

American elms are elegant and beautiful native ... These butterflies lay their eggs on the underside of elm leaves, and the ...