Synonyms: Actaea cimicifuga var. simplex; Actaea ramosa (pro parte); Actaea yesoensis; Actaea yezoensis; Cimicifuga cimicifuga var. intermedia; Cimicifuga dahurica var. candollei; Cimicifuga dahurica var. tschonoskii; Cimicifuga foetida f. hermaphrodita; Cimicifuga foetida f. laciniata; Cimicifuga foetida f. mascula; Cimicifuga foetida f. purpurea; Cimicifuga foetida var. intermedia; Cimicifuga foetida var. matsumurai; Cimicifuga foetida var. simplex; Cimicifuga foetida var. tschonoskii; Cimicifuga ramosa (pro parte); Cimicifuga simplex (homotypic); Cimicifuga simplex f. villosa; Cimicifuga simplex var. intermedia; Cimicifuga simplex var. matsumurai; Cimicifuga simplex var. ramosa; Cimicifuga simplex var. shikokiana; Cimicifuga simplex var. tschonoskii; Cimicifuga simplex var. yezoensis; Cimicifuga taquetii; Cimicifuga ussuriensis; Cimicifuga yesoensis; Cimicifuga yezoensis; Thalictrodes simplex (homotypic)