Is Clematis Tangutica invasive?

SeniorBalloon

last year

I have read a few places that say it is, adn this page from Wa's noxious weeds website:

https://kingcounty.gov/services/environment/animals-and-plants/noxious-weeds/weed-identification/oriental-clematis.aspx

says that "Oriental Clematis" is a noxious weed and it has a pic that looks an awful lot like Tangutica.

I just ordered one, actually my second as I killed the first one.

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Comment (1)

gardengal48 (PNW Z8/9)
last year
The species that is considered invasive here is Clematis orientalis. C. tangutica does look similar to orientalis but has bell shaped, nodding flowers of a brighter yellow and slightly toothed leaves.

To the best of my knowledge, C. tangutica is not listed as invasive anywhere in the US and reports from Canada (Ontario) that it is have not been confirmed and I would suspect are just a confusion with C. orientalis. Tangutica has a reputation for being slow/hard to establish so less likely to seed itself around indiscriminately.
SeniorBalloon thanked gardengal48 (PNW Z8/9)
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Is Clematis Tangutica invasive?

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gardengal48 (PNW Z8/9)

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