Ophiopogon japonicus -Gav. It belongs to Ophiopogon of Liliaceae, and its tuberous root is used as medicine. Function of nature and taste: sweet, slightly bitter, cool in nature, nourishing yin and promoting fluid production, moistening lung and relieving cough, clearing away heart fire and relieving annoyance. Indications: fever, irritability, thirst, dry throat and lung heat, cough and tuberculosis. Location: Sichuan, Zhejiang. Ophiopogon japonicus is distributed in most provinces except Northeast China. Ophiopogon japonicus is distributed in Jiangxi, Anhui, Zhejiang, Fujian, Sichuan, Guizhou, Yunnan, Guangxi and other places.