Persicaria tinctoria

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Persicaria tinctoria
Persicaria tinctoria bergianska.JPG
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Persicaria
P. tinctoria
Binomial name
Persicaria tinctoria
(Aiton) Spach 1841
  • Polygonum tinctorium Aiton 1789
  • Ampelygonum tinctorium (Aiton) Steud.
  • Persicaria tinctoria (Aiton) H. Gross
  • Pogalis tinctoria (Aiton) Raf.

Persicaria tinctoria is a species of flowering plant in the buckwheat family. Common names include Chinese indigo and Japanese indigo.[2][3] 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.

See also[edit]