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County noxious weeds include noxious weed that are designated by individual county boards to be enforced as prohibited noxious weeds within the county's jurisdiction and must be approved by the commissioner of agriculture.Each county board must submit newly proposed County Noxious Weeds to the commissioner of agriculture for review. Approved county noxious weeds shall also be posted with the county's general weed notice prior to May 15th each year. Counties are solely responsible for developing county noxious weed lists and their enforcement.
The following is the listing of MDA Approved County Noxious Weeds. County boards are responsible for developing County Noxious Weed Lists through an official county resolution and assume all responsibility for enforcement.
Becker (2011; 2014; 2020)
- Bertero incana (L.) DC., Hoary Alyssum
- Artemisia absinthium L., Absinthe Wormwood
- Cynoglossum officinale L., Houndstongue
- Hieracium aurantiacum L., Orange Hawkweed (2014)
- Hieracium caespitosum Dumort, Yellow Hawkweed (2014)
Clay (2011 & 2014)
- Cirsium vulgare (Savi) Ten., Bull Thistle
- Bassia scoparia (L.) A.J. Scott, Kochia
- Carduus nutans L., Musk Thistle
Clearwater (2020)
- Hieracium aurantiacum L., Orange Hawkweed
- Hieracium caespitosum Dumort, Yellow Hawkweed
Cook (2024)
- Valerian officinalis L., Garden Valerian
- Cirsium palustre (L.) Scop., Marsh Thistle
Cottonwood (2011)
- Solanum rostratum Dunal, Buffalobur
- Abutilon theophrasti Medik., Velvetleaf
- Xanthium strumarium L., Common Cocklebur - MDA approved with restrictions due to it being a native species*
- Helianthus annuus L., Common Sunflower - MDA approved with restrictions due to it being a native species*
Chippewa (2011)
- Abutilon theophrasti Medik., Velvetleaf
- Xanthium strumarium L., Common Cocklebur - MDA approved with restrictions due to it being a native species*
- Helianthus annuus L., Common Sunflower - MDA approved with restrictions due to it being a native species*
Koochiching (2011)
- Cirsium vulgare (Savi) Ten., Bull Thistle
- Convolvulus arvensis L., Field Bindweed
- Cannabis sativa L., Non-licensed Hemp
- Sonchus arvensis L., Perennial Sowthistle
- Ranunculus acris L., Tall Buttercup
- Hieracium aurantiacum L., Orange Hawkweed
Lincoln (2017)
- Cirsium vulgare (Savi) Ten., Bull Thistle
- Carduus nutans L., Musk Thistle
Murray (2012)
- Abutilon theophrasti Medik., Velvetleaf
- Cannabis sativa L., Non-licensed Hemp
- Xanthium strumarium L., Common Cocklebur - MDA approved with restrictions due to it being a native species*
- Helianthus annuus L., Common Sunflower - MDA approved with restrictions due to it being a native species*
Sibley (2018)
- Ambrosia trifida L., Giant Ragweed - MDA approved with restrictions due to it being a native species*
Stearns (2022)
- Metaplexis japonica (Thunb.) Makino, Rough Potato
Steele (2011)
- Abutilon theophrasti Medik., Velvetleaf
- Xanthium strumarium L., Common Cocklebur - MDA approved with restrictions due to it being a native species*
- Solanum ptycanthum Dunal, Eastern Black Nightshade - MDA approved with restrictions due to it being a native species*
- Panicum miliaceum L., Wild Proso Millet
Waseca (2012)
- Abutilon theophrasti Medik., Velvetleaf
- Xanthium strumarium L., Common Cocklebur - MDA approved with restrictions due to it being a native species*
- Panicum miliaceum, Wild Proso Millet
- Brassica spp., Wild Mustard
- Cirsium vulgare (Savi) Ten., Bull Thistle
- Convolvulus arvensis L., Field Bindweed
- Cannabis sativa L., Non-licensed Hemp
- Sonchus arvensis L., Perennial Sowthistle
- Ambrosia trifida L., Giant Ragweed - MDA approved with restrictions due to it being a native species*
- Echinocystis lobata (Michx.) Torr. & A. Gray, Wild Cucumber - MDA approved with restrictions due to it being a native species*
- Solanum ptycanthum Dunal, Eastern Black Nightshade - MDA approved with restrictions due to it being a native species*
- Amaranthus tuberculatus (Moq.) Sauer., Common Waterhemp - MDA approved with restrictions due to it being a native species*
Yellow Medicine (2024)
- Bassia scoparia (L.) A.J. Scott, Kochia
- Cirsium vulgare (Savi) Ten., Bull Thistle
- Carduus nutans L., Musk thistle
*Species native to Minnesota may be added to County Noxious Weed Lists, but can only be enforced under the Minnesota Noxious Weed Law as Prohibited Noxious Weeds on agricultural production lands and lands maintained by the county and townships when deemed necessary.
