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Prickly Smartweed (Polygonum bungeanum), a New Weed in North America

  • Robert N. Andersen (a1), William E. Lueschen (a2) and James R. Zaremba (a3)

Abstract

An annual weed, found in Minnesota in the summer of 1984, was identified as Polygonum bungeanum Turcz. This species is not included in floras of North America and may have been introduced from Asia as long ago as 25 yr. Because the stems of this weed are prickly, we propose “prickly smartweed” as a common name for this species. Currently, we know the weed to occur in six counties in southern Minnesota and one county in northern Iowa. Field observations suggest that this species may be at least as competitive as other annual smartweeds.

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References

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1. Komaov, V. L., ed. 1936. Flora SSSR, Vol. 5 (In Russian). Akad. Nauk SSSR, Moska-Leningrad. Page 647.
2. Li, Y. 1981. Field and garden weeds and their damage. 2nd. ed. (In Chinese). Jiangsu Sci. Tech. Publ. House, Nanjing. Page 44.
3. Ohwi, J. 1965. Flora of Japan (In English, Meyer, F. G. and Walker, E. H., eds.). Smithsonian Institution, Washington, DC. Page 409.

Keywords

Prickly Smartweed (Polygonum bungeanum), a New Weed in North America

  • Robert N. Andersen (a1), William E. Lueschen (a2) and James R. Zaremba (a3)

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