Phenological and ornamental characterization of a Geranium (Geraniaceae) germplasm collection under ex situ conditions in Central Non-Chernozem RussiaOlga Koryakina, Alena Demidova and Nikolay UmnovE3S Web Conf., 703 (2026) 01009DOI: https://doi.org/10.1051/e3sconf/202670301009