Flower. München bot.g, Germany. Planted. 2000-04-16.
Petasites japonicus (Sieb. & Zucc.) Maxim. Engl.: giant butterbur, Japanese sweet coltsfoot. Deu.: Japanische Pestwurz. Suom.: japaninruttojuuri. Sven.: bitterskråp, bitterpestrot
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Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.