Loic Poidevin / White swallow-wort (Vincetoxicum sp) flowers Gorges du Tarn, France, May

Philippe Clement / Swallow wort (Vincetoxicum hirundinaria / album) in flower, Ardennes, Belgium, July

Philippe Clement / Swallow-wort (Vincetoxicum hirundinaria / album) in flower, Pyrenees, France, June

Philippe Clement / Swallow wort {Vincetoxicum hirundinaria} France

Pascal Tordeux / Vincetoxicum (Vincetoxicum officinale). Picardy, France, July.