Also called swallowwort and dog-strangling vine.  Formerly called Vincetoxicum rossicum.

Part of genus Cynanchum in dogbane  family Apocynaceae.

Native to southern 🇪🇺 Europe.   Invasive > learn+quiz Invasive > 🌐︎ global Invasive > 🇨🇦+🇺🇸 Canada+USA Invasive > report it! Invasive > 🇺🇸 USA Invasive > USFS  Adobe Acrobat Reader file Invasive > Michigan  Adobe Acrobat Reader file (page 50)

🚼︎ For kids!  This plant described in invasive species placemat  Adobe Acrobat Reader file series.

This plant is particularly harmful in areas with the monarch butterfly  Danaus plexippus, as this plant is similar enough to milkweed  genus Asclepias and related genera to attract Monarch adults to lay their eggs on it, but different enough that their young (monarch caterpillars) cannot feed on it, thus eliminating these monarchs from the ecosystem.

Learn more about ◼︎ pale swallow-wort Cynanchum rossicum

Management and Control (Wisconsin) (sister species)  Adobe Acrobat Reader file Best Control Practices BCP (Michigan)  Adobe Acrobat Reader file Best Control Practices BCP (Ontario)  Adobe Acrobat Reader file and its Technical Bulletin  Adobe Acrobat Reader file Fact sheet (Ontario) 🇫🇷 en français  Adobe Acrobat Reader file
Biological Control in Eastern USA  Adobe Acrobat Reader file (page 217)

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