Symphytum officinale
English: Black wort; Boneset; Bruise wort; Comfery; Kniback; Knitbone; SLippery root.
French: Grande consoude.
Dutch: Walwortel; Waelwortel; Wallen; Smertwortel; Smeerwortel; Heilbeen; Spekwortel; Confilie; Eselohr; Zonneblommen.
Content: pyrrolizidine alkaloids, lasiocarpine, symphytine, hepatotoxic.