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VASCAN data issue management
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consider Nasturtium x sterilis introduced #2980

Closed MichaelOldham closed 2 years ago

MichaelOldham commented 3 years ago

https://data.canadensys.net/vascan/taxon/4084

Nasturtium x sterilis is considered native in Ontario, though both parental species are considered introduced.

brouille commented 3 years ago

Mike This is a complicated issue: both parents are introduced, but is the hybrid also introduced from its native range, or was it created de novo in Ontario, in a manner that could be qualified of native? I do not have a set answer for this. But I have seen others call such hybrids native. For instance, the famous allopolyploids of Tragopogon in the western US are considered native, while both parents are introduced. Luc

brouille commented 2 years ago

done, but the question remains concerning whether the hybrid occurred in NA or came from Europe