Petasites hybridus
Petasites hybridus (L.) P. G. Gaertn., B. Mey. & Scherb.
Engl.: butterburr, pestilence wort, blatterdock, bog rhubarb, butter-dock, butterbur, sweet coltsfoot.
Deu.: Gewöhnliche Pestwurz, Rote Pestwurz.
Suom.: etelänruttojuuri.
Sven.: pestskråp, pestilensrot, pestrot, skråp.
Bot. syn.: Petasites officinalis Moench, Petasites ovatus Hill, Petasites vulgaris Hill, Tussilago hybrida L., Tussilago petasites L.
4.2. Medical plants of the family Asteraceae containing pyrrolizidine alkaloids.
Herbal articles: Pyrrolizidine alkaloids.
Comfrey again.
Henriette's herbal blog: The myth that comfrey is completely benign just won't die.
Photo: Petasites hybridus 20.
Coltsfoots.
Henriette's herbal blog: Tussilago and Petasites in flower, yay!