Anaphalis morii Nakai accepted as Anaphalis sinica var. morii (Nakai) Ohwi (original description)
Artemisia vulgaris var. montana Nakai (original description)
Cacalia sect. Dendrocacalia Nakai (original description)
Cirsium alpicola Nakai (original description)
Cirsium aomorense Nakai (original description)
Cirsium bitchuense Nakai (original description)
Cirsium chanroenicum (Nakai) Nakai (original description)
Cirsium coreanum Nakai (original description)
Cirsium diamantiacum (Nakai) Nakai accepted as Cirsium schantarense Trautv. & C.A.Mey. (original description)
Cirsium fauriei Nakai (original description)
Cirsium grayanum (Maxim.) Nakai (original description)
Cirsium incomptum (Maxim.) Nakai accepted as Cirsium nipponicum var. incomptum (Maxim.) Kitam. ex Ohwi (original description)
Cirsium kagamontanum Nakai (original description)
Cirsium kiusianum Nakai accepted as Cirsium suffultum (Maxim.) Matsum. (original description)
Cirsium longipes Nakai accepted as Cirsium sieboldii Miq. (original description)
Cirsium matsumurae Nakai (original description)
Cirsium maximowiczii Nakai accepted as Cirsium aomorense Nakai (original description)
Cirsium nakaianum (H.Lév. & Vaniot) Nakai accepted as Cirsium japonicum (Thunb.) Fisch. ex DC. (original description)
Cirsium nambuense Nakai. (original description)
Cirsium norikurense Nakai (original description)
Cirsium pexum (Maxim.) Nakai accepted as Cirsium suffultum (Maxim.) Matsum. (original description)
Cirsium rhinoceros (H.Lév. & Vaniot) Nakai (original description)
Cirsium taquetii (H.Lév. & Vaniot) Nakai (original description)
Cirsium yesoanum Nakai accepted as Cirsium aomorense Nakai (original description)
Cirsium yesoense (Maxim.) Nakai accepted as Cirsium yezoense (Maxim.) Makino (original description)
Lactuca yoshinoi (Makino) Makino & Nakai accepted as Crepidiastrum yoshinoi (Makino) Pak & Kawano (original description)
Macroclinidium koribanum Nakai (original description)
Senecio kawakamii Makino (original description)