dyer's woad

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  • noun

Synonyms for dyer's woad

European biennial formerly grown for the blue coloring matter yielded by its leaves

References in periodicals archive ?
Dyer's woad is especially bad news for alfalfa growers.
A native of southeastern Russia, dyer's woad was grown as a crop in 18th century England, where a blue dye was extracted from its leaves.
If dyer's woad had not been discovered in time, it could have caused millions of dollars of crop damage and destroyed thousands of acres of wildlife habitat.