The Incised fumewort (Corydalis incisa) belongs to Fumariaceae (the Fumitory family). It is a winter annual herb that is native all over Japan, the Korean Peninsula, Taiwan and China. This herb can be found in lowland forest edges or roadsides. The leaves are biternate compound and moreover the leaflets are finely dissected. The magenta,rarely white, labiate flowers bloom abundantly in the racemes from April to June. The Japanese name is derived from its resemblance to the flower blooming on the "keman" (Chinese translation of Sanskrit "kusamamala"), which is decorated in Buddhist temples. The all parts of plant content poisonous alkaloid, though it is used as a Chinese herbal medicine. In Chinese and Taiwanese Chinese, it is "刻葉紫菫" (ke ye zi jin).