New York Metropolitan Flora

Persicaria extremiorientalis (Vorosch.) Tzvelev - Far Eastern Smartweed

Non-native , Occasional

By Science Staff

Not peer reviewed

Last Modified 03/04/2013

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Persicaria extremiorientalis

This species has been rather cryptic in our flora, closely resembling P. lapathifolia and P. maculosa. It has just recently been detected and is expected to expand in range. 

For a detailed study see Atha, D. E., M. H. Nee & R. F. C. Naczi. 2010. Persicaria extremiorientalis (Polygonaceae) is established in the flora of the eastern United States of America.  J. Torrey Bot. Soc. 137(4):333-338.

Common Names

Far Eastern Smartweed