Comfrey
Photo: flickr user Linda N.
About
Comfrey preparations are made from the leaves or other parts of the plant grown above the ground. New leaves tend to have more of the poisonous pyrrolizidine alkaloids than older leaves. Some preparations were also made from the roots, but roots contain up to 16 times the amount of pyrrolizidine alkaloids.
Information
Translations: ヒレハリソウ, Taukė, Kostihoj, Confrei, Consoude, Gavez, Beinwell, Kostival, Consolida, Żywokostu, Окопник, Smeerwortel, Valurt, Consuelda, Окопник, 紫草, Цомфреы, Consuelda