Polygonum bellardii All. - Narrowleaf Knotweed
By Science Staff
Not peer reviewed
Last Modified 02/10/2012
Common NamesNarrowleaf Knotweed
This European species has been reported from various part of the CT-NJ-NY tri-state area, but no specimens have been seen. There are likely some identification problems with P. bellardii; this species is closely related to P. ramosissimum ssp. ramosissimum, P. aviculare ssp. rurivagum, and other Polygonum taxa and may be confused with them. Polygonum bellardii may eventually be confirmed in our area.