Talk:Trees of Canada

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Is there really a need for this article? Although I'm willing to concede that there may be some trees that only occur in Canada, that would surely be only a tiny minority. -- Zoe

An actual article might be useful--one that discusses the ranges of different trees, where the treelines are, the strange tiny centuries-old trees on the Niagara escarpment, effects of logging over time...all sorts of stuff I don't know enough about to even begin to write. This list isn't an article, or even the bones of one. Vicki Rosenzweig

This list is useful - it is important to know whether trees are native or exotic, so the correct management policies can be implemented to best protect local flora/fauna and landscapes. Invasive trees and plants species are a real problem in Scotland and other parts of Europe, and they could be in Canada. Have a question though - is Scots Pine native to Canada?

No, Scots pine is not native in Canada; it is an invasive alien, introduced from Europe. I've marked it as an introduction. MPF

[edit] Remove introduced species

Theoretically, all trees that grow in temperate climates should be listed here since they could all be introduced. I think this list would be more valuable if only native trees are listed. Introduced trees should be listed in their native habitats. If there are no objections, I will remove the species listed as introduced. Atrian 15:59, 2 November 2006 (UTC)

Maybe leave in the introduced species that are formally listed as invasive species by the Canadian govt.? - MPF 12:07, 29 November 2006 (UTC)

The introduced plant species in North America have become an integral part of the NA ecosystems (for better or for worse…), and it may be prudent to keep the introduced species listed. For List of the conifers of Canada, the only introduced species listed are those that have been given a designation from the Natural Heritage Information Centres (NHICs) across Canada (usually given as SNA-exotic). These plants would have to be found in the wild (i.e., horticultural or agricultural escapees) and have collections in herbaria to be given these designations. You're right, I don't think that we should include all the temperate-climate trees (maybe form a separate listing, something like List of horticultural trees or something). The tulips I have growing in my front yard would not be included, until they escaped my horticulture and started growing and propagating themselves in the wild. FUNgus guy 18:40, 29 November 2006 (UTC)