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Leslie J. Mehrhoff, University of Connecticut, Bugwood.org |
Black swallow-wort
Cynanchum louiseae Black swallow-wort (Cynanchum louiseae) is an invasive plant. It is a native of Europe and was first detected in Massachussetts in 1864. It is an invasive plant species in the northeastern United States, parts of the Midwest, southeastern Canada, and California. In the United States and Canada, Cynanchum louiseae is a threat to native species because it crowds out native species.
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Summaries of State Plant Protection Laws and Regulations
News
04/30/2018 - New invasive plant plan fights monarch nemesis
10/18/2017 - Thanks to Marginal Way volunteers
08/09/2017 - Heroes of Wellesley's vernal pools
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