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Tree Species by Ecoregion

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Abstract

There are about 180 species of trees in Canada. More tree species are found in Southern Ontario and along the St. Lawrence River. The highest number of tree species is found in the Lake Erie Lowlands ecoregion.


Canada is home to about 180 species of trees. Tree species are typically grouped into deciduous and coniferous. Southern Ontario and the southern prairies contain primarily deciduous tree species. However, some deciduous species such as birch and willow are found in most northern areas where trees are found. The large boreal zone is dominated by coniferous varieties such as pine, spruce and fir.

This map shows the number of tree species by ecoregion. Because of warmer climatic conditions, more tree species live in the southern part of Canada than in the north. The highest numbers of tree species are found in the Mixwood Plains ecozone and the southern part of the Boreal Shield, located in Southern Ontario and along the St. Lawrence River. The ecoregion that contains the highest number of tree species is the Lake Erie Lowlands, located in the Mixwood Plains Ecozone, with 95 tree species.