Yulania kobus (DC.) Spach (1839)[5] Buergeria obovata Siebold & Zucc. (1845)[5] Magnolia borealis (Sarg.) Kudô (1922)[5] キタコブシ Magnolia kobus var. borealis Sarg. (1908)[5] Magnolia kobus f. horisontalidivaricata V.V.Byalt & Firsov (2019)[5] Magnolia kobushii Mayr (1906)[5] Magnolia praecocossima Koidz. (1929), not validly publ.[5] コブシモドキ Magnolia pseudokobus S.Abe & Akasawa (1954)[5] Magnolia thur
