Atractylodes chinensis (Bunge) Koidz. accepted as Atractylodes lancea (Thunb.) DC. (original description)
Atractylodes erosodentata Koidz. accepted as Atractylodes lancea (Thunb.) DC. (original description)
Atractylodes macrocephala Koidz. (original description)
Cacalia aidzuensis Koidz. accepted as Parasenecio hastatus (L.) H.Koyama (original description)
Cacalia tschonoskii Koidz. accepted as Parasenecio hastatus (L.) H.Koyama (original description)
Ligularia fauriei (Franch.) Koidz. (original description)
Saussurea dielsiana Koidz. (original description)
Saussurea sendaica Franch. ex Koidz. (original description)
Senecio tasimensis Franch. ex Koidz. (original description)