dyer's woad

English

Noun

dyer's woad (countable and uncountable, plural dyer's woads)

1. A plant of species Isatis tinctoria, which is the source of the blue dye woad used in the Middle Ages, before being replaced as source by Indigofera tinctoria.

Synonyms

• (Isatis tinctoria): woad, glastrum, Asp of Jerusalem

See also

• indigo

References

• dyer's woad on Wikipedia.Wikipedia
• Isatis tinctoria on Wikispecies.Wikispecies
• Isatis tinctoria on Wikimedia Commons.Wikimedia Commons