State Prohibited Noxious Weeds

Prohibited noxious weeds are annual, biennial, or perennial plants that the commissioner designates as having the potential or are known to be detrimental to human or animal health, the environment, public roads, crops, livestock or other property. There are two regulatory listings for prohibited noxious weeds in Minnesota. 

1. Eradicate List: Prohibited noxious weeds that are listed to be eradicated are plants that are not currently known to be present in Minnesota or are not widely established. These species must be eradicated, meaning all of the above and below ground parts of the plant must be destroyed, as required by Minnesota Statutes, Section 18.78. Additionally, transportation, propagation, or sale of these is prohibited except as allowed by Minnesota Statutes, Section 18.82. Measures must also be taken to prevent and exclude these species from being introduced into Minnesota.

  Common Name Scientific Name Year added to list
1. Black swallow-wort Cyanchum louiseae Kartesz & Gandhi 2013
2. Brown knapweed Centaurea jacea L. 2013
3. Common teasel Dipsacus fullonum L. 2012
4. Cutleaf teasel Dipsacus laciniatus L. 2012
5. Dalmatian toadflax Linaria dalmatica (L.) Mill 2012
6. Diffuse knapweed Centaurea diffusa L. 2017
7. Giant hogweed Heracleum mantegazzianum Sommier & Levier 2012
8. Grecian foxglove Digitalis lanata Ehrh. 2010
9. Japanese honeysuckle Lonicera japonica Thunb. 2020
10. Japanese hops Humulus japonicus Siebold & Zucc. 2012
11. Meadow knapweed Centaurea x moncktonii C.E. Britton 2013
12. Oriental bittersweet Celastrus orbiculatus Thunb. 2011
13. Palmer amaranth Amaranthus palmeri S. Watson 2015
14. Poison hemlock Conium maculatum L. 2018
15. Tree of heaven Ailanthus altissima (Mill.) Swingle 2017
16. Yellow starthistle Centaurea solstitialis L. 2010

Giant hogweed and yellow starthistle are not known to be in Minnesota but have been determined to be a threat to invade the state.

2. Control List: Prohibited noxious weeds listed to be controlled are plants established throughout Minnesota or regions of the state. Species on this list must be controlled, meaning efforts must be made to prevent the spread, maturation and dispersal of any propagating parts, thereby reducing established populations and preventing reproduction and spread as required by Minnesota Statutes, Section 18.78. Additionally, propagation, sale, or transportation of these plants is prohibited except as allowed by Minnesota Statutes, Section 18.82.

  Common Name Scientific Name Year added to list
1. Bohemian knotweed Polygonum x bohemicum (J. Chrtek & Chrtkova) Zika & Jacobson 2020
2. Canada thistle Cirsium arvense (L.) Scop. 1872
3. Common barberry Berberis vulgaris L. 2017
4. Common tansy Tanacetum vulgare L. 2010
5. Giant knotweed Polygonum sachalinese F. Schmidt ex Maxim 2014
6. Japanese knotweed Polygonum cuspidatum Seibold & Zucc. 2014
7. Leafy spurge Euphorbia esula L. 1992
8. Narrowleaf bittercress Cardamine impatiens L. 2012
9. Plumeless thistle Carduus acanthoides L. 1975
10 Purple loosestrife Lythrum salicaria L. 1992
11. Spotted knapweed Centaurea stoebe L. ssp. micranthos (Gugler) Hayek 2001
12. Wild parsnip Pastinaca sativa L. (except for non-wild cultivated varieties) 2010

Restricted Noxious Weeds

Restricted noxious weeds are plants that are widely distributed in Minnesota and are detrimental to human or animal health, the environment, public roads, crops, livestock or other property, but whose only feasible means of control is to prevent their spread by prohibiting the importation, sale, and transportation of their propagating parts in the state except as allowed by Minnesota Statutes, Section 18.82. Plants designated as Restricted Noxious Weeds may be reclassified if effective means of control are developed. 

  Common Name Scientific Name Year added to list
1. Amur honeysuckle Lonicera maackii (Rupr.) Herder 2017
2. Bell's honeysuckle Lonicera x bella Zabel 2017
3. Black locust Robinia pseudoacacia L. 2017
4. Common or European buckthorn Rhamnus cathartica L. 1999
5. Crown vetch Securigera varia (L.) Lassen 2017
6. European alder Alnus glutinosa (L.) Gaertn. 2020
7. Garlic mustard Alliaria petiolata Bieb. 2013
8. Glossy buckthorn (and all cultivars) Frangula alnus Mill. 1999
9. Japanese barberry cultivars Berberis thunbergii DC. 2015
10. Morrow's honeysuckle Lonicera morrowii A. Gray 2017
11. Multiflora rose Rosa multiflora Thunb. 2012
12. Non-native Phragmites Phragmites australis (Cav.) Trin ex Steud. ssp. australis 2013
13. Porcelain berry Ampelopsis brevipedunculata (Maxim.) Trautv. 2017
14. Siberian peashrub Caragana arborescens Lam. (exemption for Green Spires® Caragana - Caragana 'Jefarb') 2020
15. Tatarian honeysuckle Lonicera tatarica L. 2017
16. Wild carrot/Queen Anne's Lace Daucus carota L. 2017

Japanese cultivars banned from sale:

‘Anderson’ (Lustre Green™); ‘Angel Wings’; ‘Antares’; ‘Bailgreen’ (Jade Carousel®);‘Bailone’ (Ruby Carousel®); ‘Bailsel’ (Golden Carousel® - B. koreana × B. thunbergii hybrid); ‘Bailtwo’ (Burgundy Carousel®); B. thunbergii var. atropurpurea; ‘Crimson Velvet’; ‘Erecta’; ‘Gold Ring’; ‘Inermis’; ‘JN Redleaf’ (Ruby Jewel™); ‘JN Variegated’ (Stardust™); ‘Kelleris’; ‘Kobold’; ‘Marshall Upright’; ‘Monomb’ (Cherry Bomb™); ‘Painter’s Palette’; ‘Pow Wow’; ‘Red Rocket’; ‘Rose Glow’; ‘Silver Mile’; ‘Sparkle’; ‘Tara’ (Emerald Carousel® - B. koreana × B. thunbergii hybrid); Wild Type (parent species – green barberry)

Specially Regulated Plants

Specially regulated plants are plants that may be native species or have demonstrated economic value, but also have the potential to cause harm in non-controlled environments. Plants designated as specially regulated have been determined to pose ecological, economical, or human or animal health concerns. Plant specific management plans and or rules that define the use and management requirements for these plants will be developed by the Minnesota Department of Agriculture for each plant designated as specially regulated. Measures must also be taken to minimize the potential for harm caused by these plants.

  Common Name Scientific Name Year added to list Special regulation
1. Amur maple Acer ginnala Maxim. 2016 Sellers shall affix a label that advises buyers to only plant Amur maple and its cultivars in landscapes where the seedlings will be controlled by mowing or other means. Amur maple should be planted at least 100 yards from natural areas.
2. Norway maple (and all cultivars) Acer platanoides L. 2020 Sellers shall affix a label that advises “Norway maple should only be planted in areas where the seedlings will be controlled or eradicated by mowing or other means. Norway maple seed is wind dispersed so trees should not be planted closer than 100 yards from natural areas.”
3. Poison ivy Toxicodendron radicans (L.) Kuntze & T. rydbergii (Small) Green 2010 Must be eradicated or controlled for public safety along rights-of-ways, trails, public accesses, business properties open to the public or on parts of lands where public access for business or commerce is granted. Must also be eradicated or controlled along property boarders when requested by adjoining landowners.
4. Winged burning bush (and all cultivars) Euonymus alatus Thunb. 2020 Three-year production phase-out period, after which sale of this species will be prohibited and the species will move to the Restricted list in 2023.

County Noxious Weeds

County noxious weeds are plants that are designated by individual county boards to be prohibited within the county’s jurisdiction and must be approved by the Commissioner of Agriculture, in consultation with the Noxious Weed Advisory Committee. Each county board must submit newly proposed County Noxious Weeds to the Minnesota Department 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. Contact your County Agricultural Inspector or County Designated Employee for more information or see a current listing of County Noxious Weeds.

Federal Noxious Weeds

Federal terrestrial and parasitic listed noxious weeds are prohibited in Minnesota.  Federal noxious weeds are selected and enforced by the U.S. Department of Agriculture (USDA) and can be reported to the local Animal Plant Health Inspection Service Office (APHIS) in Minneapolis, MN or to the MDA Noxious and Invasive Weed Program.  A list of federal noxious weeds and information about the federal weed program can be viewed at the USDA APHIS web site.