Project 3190: R. A. Ufimov, T. A. Dickinson. 2020. Infrageneric nomenclature adjustments in CrataegusL. (Maleae, Rosaceae). Phytologia. 102 (3):177-199.
Viewing Folio F945 Crataegus intersubgeneric hybrid; nothosect. Crataeguineae K.I. Chr. containing 2 media.
