升麻又称周麻、绿升麻,为毛茛科植物升麻的根状茎。同科植物兴安升麻及三叶升麻(关升麻)亦载入《药典》,作为正品使用。其每年春秋季节采挖,除去地上茎苗和泥土,晒至须根全干时用火燎或用竹筐撞去须根,晾干即可入药。其性凉,味甘辛微苦,入肺、脾、胃经,具有升阳、发表、透疹和解毒的功效,常用于治疗时气疫 Cimicifuga also known as Zhouma, green cohosh, is a rhizome of Ranunculaceae plant Cimicifuga. The same family of plants Xingan Cimicifuga and Cimicifuga (Gracilaria) are also included in the Pharmacopoeia and used as authentic products. Every year it is excavated in the spring and autumn seasons to remove shoots and soil on the ground. When it is dry until the fibrous roots are completely dry, use a fire bowl or hit a fibrous root with a bamboo basket, and dry them to make medicine. Its cool, sweet and bitter taste, into the lungs, spleen, stomach, with sun, publish, rash and detoxification effect, commonly used in the treatment of epidemics