But now there is a new threat, red wisteria, which was spotted for the first time just last week. Only a handful of plants have been identified so far, raising hopes that this is one invader that might be successfully repelled.
The Russian Riverkeeper is asking that any sightings of red wisteria (it's also known as scarlet wisteria) be reported to them here or by emailing This email address is being protected from spambots. You need JavaScript enabled to view it.. Learn more about the plant here or here.