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VIRTUAL FIELD GUIDE >> Noxious Weed List >> Dyer's Woad |
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Dyer's Woad (Isatis tinctoria) |
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 Dyer's Woad
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This striking yellow plant is native to southeast Russia and is sometimes found as a garden ornamental in the western US. Dyer’s Woad is a non-palatable, aggressive weed with allelopathic properties (it produces chemicals which inhibit growth in other plants close by.) This species has a history of establishing across thousands of acres of western rangeland, and infestations are known from eight western states. |
 Dyer's Woad rosette |
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