References
- ^Lennox Din, Forshing LuiButterbur
- ^Łukasz Kulinowski, Simon Vlad Luca, Mirjana Minceva, Krystyna Skalicka-WoźniakA review on the ethnobotany, phytochemistry, pharmacology and toxicology of butterbur species (Petasites L.)J Ethnopharmacol.(2022 Jul 15)