Photo: Petasites japonicus 10.

Botanical name: 

ssp. giganteus. A few flowerbuds Helsinki bot.g. (Kaisan.), Finland. Planted. 2006-04-22.

Petasites japonicus (Sieb. & Zucc.) Maxim.
Engl.: giant butterbur, Japanese sweet coltsfoot.
Deu.: Japanische Pestwurz.
Suom.: japaninruttojuuri.
Sven.: bitterskråp, bitterpestrot

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Photo: Petasites japonicus 10.

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