cimicifuga noun1 •Any member of the former genus Cimicifuga, now Actaea sect. Cimicifuga, of flowering plants: bugbane or cohosh.You can also have a long bloom season by including fall-flowering plants like chrysanthemums, anemones, cimicifugas, fall-blooming crocuses and false crocuses (colchicums). — 2007 formscimicifugas