Where did Guilin buy Acorus gramineus?

North of Yongxin Building, Xiumu Road, Ziyuan County, Guilin City. Guilin, referred to as "Gui" for short, is a prefecture-level city, a second-class big city and a provincial sub-central city under the jurisdiction of Guangxi Zhuang Autonomous Region. It is a world-famous scenic city, a sacred place of wisdom for thousands of years, and an important high-tech industrial base of the country. Guilin bought Acorus gramineus on the north side of Yongxin Building, Xiumu Road, Ziyuan County, Guilin City. Acorus gramineus is a perennial herb of Araceae and Acorus, and its rhizome has a smell.