Artemisia koidzumii Nakai (original description)
Artemisia minutiflora Nakai accepted as Artemisia lancea Vaniot (original description)
Cacalia taimingasa Nakai accepted as Senecio syneilesis Franch. & Sav. (original description)
Cacalia thunbergii Nakai accepted as Syneilesis palmata (Thunb.) Maxim. (original description)
Cirsium japonicum var. nipponense Nakai (original description)
Cirsium pseudopendulum Nakai accepted as Cirsium nipponicum (Maxim.) Makino (original description)
Saussurea seoulensis Nakai (original description)
Serratula hayatae Nakai (original description)