Robuta

https://ast.wikipedia.org/wiki/Petasites_hybridus Petasites hybridus - Wikipedia petasites hybridus wikipedia https://phytochem.nal.usda.gov/chemical-petasites-sesquiterpene Chemical PETASITES-SESQUITERPENE-A | Dr. Duke's Phytochemical and Ethnobotanical Databases chemical petasites dr https://phytochem.nal.usda.gov/plant-petasites-hybridus Plant Petasites hybridus (Asteraceae) | Dr. Duke's Phytochemical and Ethnobotanical Databases petasites hybridus plant asteraceae dr