Syn: = Tussilago paradoxus; Tussilago nivea; Petasites nivea; Petasites niveus

Petasites paradoxus Baumg. Asteraceae Alpine Butterbur. Herbaceous Perennial. Distribution: Temperate Northern hemisphere. It contains pyrrolizidine alkaloids, which are hepatotoxic and cause liver cancers.

Oakeley, Dr. Henry F. (2013). Wellcome Library notes. Link

The following notes refer to the use in traditional medicine of the related species P. hybridus. Used as an anticonvulsive since the Middle Ages. Active principle Petasin, a terpene discovered in the 1950's. Also used as a febrifuge.

Mabberley, D.J. (1997) The Plant Book, ed.2, Cambridge University Press p.554

Europe, Southwestern Europe, France

Europe, Southwestern Europe, Spain

Europe, Middle Europe, Switzerland

Europe, Middle Europe, Germany

Europe, Southeastern Europe, Italy

Europe, Southeastern Europe, Yugoslavia

Europe, Southeastern Europe, Romania