《管子·轻重丁》
管子对曰： 江淮之间有一茅而三脊母至其本，名之曰菁茅。
管子对曰： 江淮之间有一茅而三脊母至其本，名之曰菁茅。
Guan Zhong replied: “There is a reed between the Jiang and Huai rivers which has three stems growing from one root, it is called the three-stemmed reed.