Arctium edule (Sieber ex Miq.) Nakai accepted as Lappa edulis Siebold ex Miq. (original description)
Aster chezuensis (Kitam.) Nakai accepted as Heteropappus chejuensis Kitam. (original description)
Aster micromaackii Nakai accepted as Aster maackii Regel (original description)
Aster parafastigiatus Nakai (original description)
Aster perrugosus Nakai (original description)
Cacalia kitamurae Nakai accepted as Parasenecio hastatus subsp. orientalis (Kitam.) H.Koyama (original description)
Erythrochaete coreana (Nakai) Nakai accepted as Ligularia coreana Nakai (original description)
Rhynchospermum subsessile (Oliv. ex Miq.) Nakai (original description)