American Elm ID? DED Survivor? 4b Minnesota

[joejack]

Can anyone help me positively ID this elm?
Zone 4b, Minnesota. On the transition of upland hardwoods and a wet sedge meadow, more within the alder and ash than the oak, maple, basswood.
It has an asym leaf base, with no forking veins on the underside, and the interior there looks pretty consistently light colored - I could be seeing the creamy bark layers here too.
I'm wondering if I may have a grove of DED survivors. There are characteristic dead elms even in this stand.
Second, it's unfortunately trunk split recently and I'm wondering if theres anything I can do to assist healing? Is it beneficial to remove the fallen split?

Thank you!


https://imgur.com/nnTNhZE
[url=https://imgur.com/hiY98fo] [/URL]

 

[Raintree]

Looks like an American elm to me, I'd just leave it be, it's back in the woods.

 

[pdqdl]

That might be a slippery elm. Ulmus rubra.

One quick rub of a leaf between your fingers will make sure which you are holding, too: the slippery elm has many bristly trichomes (tiny hairs), and feel quite rough, especially on the upper surface. American elm is almost slick by comparison. Same is true for the pubescent twigs; American elm are without the hairs.




Comparison of Ulmus rubra (left) and Ulmus americana (right) growing together at the intersection of a basic slope and a bottomland. Note the difference in leaf shape, with American Elm coming to a more gradual point. American Elm also tends to be darker green and shinier above.
https://www.carolinanature.com/trees/ulru.html

 

[joejack]

That might be a slippery elm. Ulmus rubra.

One quick rub of a leaf between your fingers will make sure which you are holding, too: the slippery elm has many bristly trichomes (tiny hairs), and feel quite rough, especially on the upper surface. American elm is almost slick by comparison. Same is true for the pubescent twigs; American elm are without the hairs.

Another thing I'll take a closer inspection of - thank you!