Black Swallow-wort (Vincetoxicum nigrum) - Photos

A twining vine; photo by Elizabeth Czarapata
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Dark purple flowers; photo by Stephen Darbyshire, Agriculture & Agri-food Canada
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Five petals: length equal to width, and hairy; photo by Stephen Darbyshire,
Agriculture & Agri-food Canada
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Long, tapered pods; photo by WDNR
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Photo of black swallow-wort by WDNR
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