Persicaria tinctoria is a species of flowering plant in the buckwheat family. Common names include Chinese indigo and Japanese indigo. It is native to Eastern Europe and Asia.
The leaves were a source of indigo dye. It was already in use in the Western Zhou period (c. 1045–771 B.C.), and was the most important blue dye in East Asia until the arrival of Indigofera from the south.
Увядзіце сімптом альбо захворванне і прачытайце пра зёлкі, якія могуць дапамагчы, набярыце траву і паглядзіце хваробы і сімптомы, супраць якіх яна выкарыстоўваецца.
* Уся інфармацыя заснавана на апублікаваных навуковых даследаваннях