Ulmus americana 'Morden'
|Origin||Dominion Experimental Farm, Morden, Manitoba, Canada|
The American Elm cultivar Ulmus americana 'Morden' was cloned from a selection made by the Dominion Experimental Farm, Morden, Manitoba, in 1939 on account of its ability to withstand severe ice storms without breakage.
Fast-growing and ultimately large, 'Morden' has been described as "rather coarse".
Pests and diseases
The tree was first marketed by the Patmore Nurseries, Brandon, Manitoba, circa 1948. A specimen planted in the Longenecker Horticultural Gardens at the University of Wisconsin–Madison Arboretum  in 1956 had died by 1974 "probably from Dutch elm disease"; no others are known to remain in cultivation.