在蘇聯,由春蓼(Polygonum Persicaria)製备的茶劑,很早以前就用以治療痔疾患者。春蓼属於蓼科(Polygonaceae),係一年生草本植物,直莖或緾繞莖,長約20—80厘米,葉披針形,尖頭,至基部逐渐變狹。除蘇聯北部外,幾乎產於全蘇各地,生於河岸、溝渠沿岸及潮濕的田野和花園中。在1901年,高爾斯特氏在嘉桑城首先研究了該植物的化學成份,並發現其中含有:1.5%的鞣酸、 In the Soviet Union, tea preparations made from Polygonum Persicaria were used to treat dysentery patients long ago. Spring beak belongs to the family Polygonaceae and is an annual herbaceous plant with a straight stem or winding stem, about 20-80 centimeters in length. The leaves are lanceolate, pointed, and gradually narrow to the base. Except in the northern part of the Soviet Union, it was produced in nearly all parts of the Soviet Union and was born on riverbanks, ditches and in damp fields and gardens. In 1901, Goldstein first studied the chemical composition of the plant in Gazao City and found that it contains: 1.5% of tannic acid,