Petasites paradoxus Baumg. Asteraceae Alpine Butterbur. Herbaceous Perennial. Distribution: Temperate Northern hemisphere. It contains pyrrolizidine alkaloids, which are hepatotoxic and cause liver cancers. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
- Dr Henry Oakeley
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Petasites paradoxus Baumg. Asteraceae Alpine Butterbur. Herbaceous Perennial. Distribution: Temperate Northern hemisphere. It contains pyrrolizidine alkaloids, which are hepatotoxic and cause liver cancers. Photographed in the Medicinal Garden of the Royal College of Physicians, London. Dr Henry Oakeley. Source: Wellcome Collection.