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 Picture 1 Picture 2 Picture 3
Bugloss, Annual 
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Anchusa arvensis
Noxious Weed Example Annual Bugloss Pic 2 Annual Bugloss Pic 3
Cinquefoil, Sulfur 
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Potentilla recta
Sulfur Cinquefoil Pic 1 Sulfur Cinquefoil Pic 2 Sulfur Cinquefoil Pic 3
Goatgrass, Jointed
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Aegilops cylindrica
Jointed Goatgrass Pic 1 Jointed Goatgrass Pic 2 Jointed Goatgrass Pic 3
Groundsel, Common
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Senecio vulgaris
Common Groundsel Pic 1 Common Groundsel Pic 2 Common Groundsel Pic 3
Hemlock, Poison
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Conium maculatum
Poison Hemlock Pic 1 Poison Hemlock Pic 2 Poison Hemlock Pic 3
Houndstongue
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Cynoglossum officinale
Houndstongue Pic 1 Houndstongue Pic 2 Houndstongue Pic 3
St. Johnswort 
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Hypericum perforatum
St. Johnswort Pic 1 St. Johnswort Pic 2 St. Johnswort Pic 3
Thistle, Bull
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Cirsium vulgare
Bull Thistle Pic 1 Bull Thistle Pic 2 Bull Thistle Pic 3
Thistle, Russian
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Salsola kali
Russian Thistle Pic 1 Russian Thistle Pic 2 Russian Thistle Pic 3
Wormwood, Absinth
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Artemisia absinthium
Absinth Wormwood Pic 1 Absinth Wormwood Pic 2 Absinth Wormwood Pic 3