Rock elm (Ulmus thomasii)

Rock elm, a reference photo — Photo: Ronnie Nijboer · CC0 (licence)

Ulmus thomasii, the rock elm or cork elm (or orme liège in Québec), is a deciduous tree native primarily to the Midwestern United States. The tree ranges from southern Ontario and Quebec, south to Tennessee, west to northeastern Kansas, and north to Minnesota.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Rock elm being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

Ulmus serotina
Ulmus americana
Ulmus rubra
Ulmus davidiana

Classification

Kingdom: Plantae
Phylum: Tracheophyta
Class: Magnoliopsida
Order: Rosales
Family: Ulmaceae
Genus: Ulmus
Species: Ulmus thomasii

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