Isatis tinctoria

Isatis tinctoria L. is a dye plant.

Colors
It yields a blue colour.

Parts used
You need the leaves to extract the dye.

Synonyms
Isatis indigotica Fort.

Local names are: woad in North America. In spanish is called glasto and pastel or hierba pastel. In arabic nil, wasma, bustani, or sama 'i