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1 results

  • New Zealand Bittercress (Cardamine corymbosa; Brassicaceae): New to the United States

  • A. R. Post, J. C. Neal, A. Krings, B. R. Sosinski, Q. Xiang
  • Journal:
    Weed Technology / Volume 23 / Issue 4 / December 2009
    Published online by Cambridge University Press:
    20 January 2017, pp. 604-607

  • New Zealand bittercress is reported as new to the United States. While collecting specimens to determine what Cardamine species occur in the nursery trade, New Zealand bittercress was discovered in a container nursery in Wilkes County, North Carolina. The nursery tracked the shipment of contaminated plants to a wholesale nursery in Washington County, Oregon. It was subsequently confirmed that New Zealand bittercress also occurs in a nursery in Clackamas County, Oregon, and has likely been distributed throughout the United States as a contaminant in container grown ornamental plants. Thus far there have been no reports of naturalized populations outside of container nursery crop production facilities.