Nekemias grossedentata

About

Nekemias grossedentata is a species of plant in the family Vitaceae whose leaves and stems are used to make a tisane known as vine tea, moyeam, or tengcha. It is mainly distributed in central and southern China and Indochina. Most moyeam is grown in Zhangjiajie, a mountainous region in Hunan Province in central China. The synonym Ampelopsis grossedentata is still commonly encountered in the media and literature.

Summary from Wikipedia