Slippery Elm and American Elm are the two most common elm species in Maryland.
Slippery Elm tends to have rougher upper leaf surfaces than does American Elm, but this is not a really reliable way to differentiate between the two species. A better criterion is the fruits and cross sections of bark slices, as explained on the American Elm species page.
A host plant for various moth species including American Dagger Moth and Banded Tussock Moth (Database of World's Lepidopteran Host Plants).
There are 130 records in the project database.
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