The chemical composition of the three-part beggarticks (Bidens tripartita L.) Mikhail Rodin, Daria Potapova, Dmitrii Bokov, Tatiana Kovaleva and Irina Samylina BIO Web Conf., 71 (2023) 02005 Published online: 07 November 2023 DOI: 10.1051/bioconf/20237102005