White Elm (Ulmus americana)

https://treecanada.ca/resources/trees-of-canada/white-elm-ulmus-americana-2/

Slippery elm (Ulmus rubra)

https://treecanada.ca/resources/trees-of-canada/slippery-elm-ulmus-rubra/

Siberian elm (Ulmus pumila)

https://treecanada.ca/resources/trees-of-canada/siberian-elm-ulmus-pumila/

Scotch elm (Ulmus glabra)

https://treecanada.ca/resources/trees-of-canada/scotch-elm-ulmus-glabra/

Rock elm (Ulmus thomasii)

https://treecanada.ca/resources/trees-of-canada/rock-elm-ulmus-thomasii/

English elm (Ulmus procera)

https://treecanada.ca/resources/trees-of-canada/english-elm-ulmus-procera/