Jiuhua Mountain. Vitex negundo tea is made of Polygonatum sibiricum, a famous mountain in Jiuhua Mountain, and refined by local special technology. It tastes excellent and loves to soak for a long time. Jiuhua Mountain, known as Ling yangshan and Jiuzi Mountain in ancient times, is one of the "four famous Buddhist mountains" in China. It is located in Qingyang County, Chizhou City, Anhui Province and is known as "the first mountain in the southeast".