Yellow Birch (Betula alleghaniensis)

https://treecanada.ca/resources/trees-of-canada/yellow-birch-betula-alleghaniensis-2/

White birch (Betula papyrifera)

https://treecanada.ca/resources/trees-of-canada/white-birch-betula-papyrifera/

Water birch (Betula occidentalis)

https://treecanada.ca/resources/trees-of-canada/water-birch-betula-occidentalis/

Mountain paper birch (Betula cordifolia)

https://treecanada.ca/resources/trees-of-canada/mountain-paper-birch-betula-cordifolia/

Kenai birch (Betula kenaica)

https://treecanada.ca/resources/trees-of-canada/kenai-birch-betula-kenaica/

Gray birch (Betula populifolia)

https://treecanada.ca/resources/trees-of-canada/gray-birch-betula-populifolia/