Tetrastigma hemsleyanum is a peculiar precious herb of our country

and has been widely used in south China

especially in the Yangtze River basin. According to the traditional Chinese medicine

T. hemsleyanum has the effects in clearing heat and removing toxicity

circulating blood and relieving pain

and expelling wind and phlegm. On the basis of modern pharmacological studies

it has anti-tumor

anti-virus

immune regulation and other exact pharmacological effects. It was recorded firstly on Zhiwu Mingshi Tukao

which is a botany monograph written by Wu Qijun in the Qing dynasty

but its original plant was not clear. Until now

it has not been included in the Chinese Pharmacopoeia. Because modern scholars have rarely systematically studied on it

a series of key problems

such as the original plant primordial and the distribution of resources

have remained unclear. To solve them

this paper consulted 41 relevant literatures

summarized the origin and development of the plant

and determined the original plant of its plant was T. hemsleyanum of Tetrastigma from Vitaceae. This paper comprehensively described the different names of this herb

analyzed two possible reasons

and summarized the distribution of this herb. It is distributed mainly in all provinces in the south of the Yangtze River and most of the provinces through the Yangtze River

but rarely in the north of the Yangtze River. The paper suggested covering T. hemsleyanum within the scope of relevant administration

and including it in the Chinese Pharmacopoeia under the name of Sanyeqing. T. hemsleyanum is clearly identified as it sole original plant.