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Environmental Programs & Resources
Noxious Weed Control
Weeds of Concern
Weeds of Concern
Weeds of Concern have a negative impact on property in Spokane County and when found, the Spokane County Noxious Weed Control Board will encourage their control.
Common Name
Scientific Name
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Bugloss, Annual
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Additional Information
Anchusa arvensis
Cinquefoil, Sulfur
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Additional Information
Potentilla recta
Goatgrass, Jointed
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Additional Information
Aegilops cylindrica
Groundsel, Common
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Additional Information
Senecio vulgaris
Hemlock, Poison
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Additional Information
Conium maculatum
Houndstongue
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Additional Information
Cynoglossum officinale
St. Johnswort
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Additional Information
Hypericum perforatum
Thistle, Bull
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Additional Information
Cirsium vulgare
Thistle, Russian
Additional Information
Salsola kali
Wormwood, Absinth
PDF
Additional Information
Artemisia absinthium
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