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

Published online by Cambridge University Press:  12 June 2017

Robert N. Andersen
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Dep. Agron. and Plant Genetics, Univ. Minnesota, St. Paul, MN 55108
William E. Lueschen
Affiliation:
Southern Exp. Stn., Univ. Minnesota, Waseca, MN 56093
James R. Zaremba
Affiliation:
Dep. Agron. and Plant Genetics, Univ. Minnesota, St. Paul, MN 55108

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.

Keywords

Type
Weed Biology and Ecology
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

Literature Cited

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