Petasites hybridus Health effects and herbal facts
Known as
bog-rhubarb butterbur umbrella-plant
Petasites hybridus, the butterbur is a herbaceous perennial plant in the family Asteraceae, native to Europe and northern Asia. The flowers are produced in the early spring, before the leaves appear; they are pale pink, with several inflorescences clustered on a 5–20 cm stem. The leaves are large, on stout 80–120 cm tall stems, round, with a diameter of 40–70 cm. It is also called bog rhubarb, Devil's hat and pestilence wort. Synonyms include P. officinalis, P. ovatus and P. vulgaris.

Medical use
Economic importance of Petasites hybridus
Environmental | ornamental |
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Medicines | folklore |
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Geografical distribution
- ASIA-TEMPERATE
Native
- Western Asia: Turkey
- Caucasus: Armenia; Georgia; Russian Federation - Ciscaucasia, Dagestan
- EUROPE
Native
- Northern Europe: Ireland; United Kingdom
- Middle Europe: Austria; Belgium; Czech Republic; Germany; Hungary; Netherlands; Poland; Slovakia; Switzerland
- East Europe: Belarus; Moldova; Russian Federation - European part; Ukraine
- Southeastern Europe: Albania; Bosnia and Herzegovina; Bulgaria; Croatia; Greece; Italy ; Macedonia; Montenegro; Romania; Serbia; Slovenia
- Southwestern Europe: France ; Spain
Naturalized- Northern Europe: Denmark; Norway; Sweden
- East Europe: Estonia; Latvia; Lithuania
- NORTHERN AMERICA
Naturalized
- Northeastern U.S.A.: United States - Michigan
Biological activities
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Chemicals detected
Reference: Dr. Duke's Phytochemical and Ethnobotanical Databases. [Online Database]