A Scandinavian tree turns up growing in downtown Toronto
iNaturalist: cheriedaly
Urban Ecology
Street trees you walk past every day often aren't native at all, and citizen naturalists tracking sightings like this one help scientists map which non-native ornamentals are quietly establishing themselves in Canadian cities.
Someone spotted a Swedish Whitebeam tree growing in Toronto and logged it on iNaturalist, where other users confirmed the identification, earning it 'research-grade' status. This tree is normally found in Scandinavia and the Baltic region, so its presence in a Canadian city shows how far ornamental and landscape trees can travel and take root outside their native range.
Key Findings
Observation reached 'research-grade' status on iNaturalist, meaning the identification was confirmed by community consensus.
Swedish Whitebeam (Scandosorbus intermedia) is native to Scandinavia and the Baltic, not North America.
The sighting adds a documented occurrence point for tracking this species' urban and non-native distribution in Toronto.
chevron_right Technical Summary
A verified iNaturalist sighting confirms Swedish Whitebeam, a tree native to Scandinavia, growing in Toronto, adding a data point to the tree's spread as an urban ornamental far from its home range.
Abstract Preview
Original paper
Swedish Whitebeam (Scandosorbus intermedia) observed in Toronto
Research-grade observation of Swedish Whitebeam in Toronto.
open_in_new Read full abstractAbstract copyright held by the original publisher.
Species Mentioned
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Scandosorbus intermedia or, formerly, Sorbus intermedia, the Swedish whitebeam, is a species of whitebeam found in southern Sweden, with scattered occurrences in Estonia, Latvia, easternmost Denmark (Bornholm), the far southwest of Finland, and northern Poland. It also occurs in England .