Acorus calamus is a widely distributed plant in China, and it is also commonly known among the people, such as Acorus calamus, Acorus gracilis, Scolopendra, Acorus gramineus, Allium tuberosum, Scolopendra, Herb, Acorus calamus, Hedysarum frutescens and Handicap. Acorus gramineus is very inconspicuous, its leaves are strip-shaped and look like leeks, which is why it is called wild leeks in some places.