Black Swallow-wort Fact Sheet from Plant Conservation Alliance, Alien Plant Working Group – hosted on Invasive.org
Black Swallow-wort Fact Sheet on Invasive Plant Atlas of the United States
Adirondack Park Invasive Plant Program – Swallow-wort
Cornell Cooperative Extension of Jefferson County – Swallow-wort
NRCS Pest Management – Invasive Plant Control Black Swallow-Wort
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