Minnesota Noxious Weed Risk Assessments
The Minnesota Department of Agriculture (MDA) Noxious Weed Advisory Committee (NWAC) completes risk assessments for terrestrial plants being reviewed for possible listing as noxious weeds in the state of Minnesota. The NWAC includes representation from a variety of groups interested in and affected by the regulation of noxious weeds including environmental advocates, state and local government, academe, and trade and farm organizations. Based on the results of these risk assessments, the committee recommends to the commissioner of the Department of Agriculture whether or not a species should be regulated under the Minnesota Noxious Weed Law.
While the Minnesota Invasive Species Advisory Council (MISAC) did not create these risk assessments, they are posted on the MISAC website to help those interested in additional information about these species and the process for regulation. For additional information, visit the Noxious and Invasive Weed Program section of the MDA website.
A PDF copy of the Minnesota Plant Risk Assessment & Management Protocol can be accessed here.
Common Name Date Scientific Name
Amur Honeysuckle 2014 Lonicera maackii Amur Corktree 2021 Phellodendron amurense
Amur Maple 2015 Acer ginnala Amur Silvergrass 2022 Miscanthus sacchariflorus
Baby’s Breath 2020 Gypsophila paniculata and Gypsophila paniculata var. paniculata Bell's Honeysuckle 2014 Lonicera x bella
Birdsfoot Trefoil 2015 Lotus corniculatus
Black Locust 2022 Robinia pseudoacacia
Black Swallow-wort 2012 Cynanchum louiseae Blue mustard 2018 Chorispora tenella Bohemian Knotweed 2018 Polygonum x bohemicum
British Yellowhead 2011 Inula britannica
Brown Knapweed 2012 Centaurea jacea Callery Pear 2022 Pyrus calleryana
Canada Thistle 2013 Cirsium arvense
Castor Bean 2021 Ricinus communis L.
Chinese Silver Grass 2012 Miscanthus sinensis
Common Barberry 2015 Berberis vulgaris
Common Tansy 2013 Tanacetum vulgare
Common Teasel 2016 Dipsacus fullonum
Cow Vetch 2015 Vicia cracca
Crown Vetch 2015 Securigera varia Cutleaf Teasel 2019 Dipsacus laciniatus Dalmatian Toadflax 2019 Linaria dalmatica
Diffuse Knapweed 2014 Centaurea diffusa
Eastern & Western Poison Ivy 2013 Toxicodendron radicans and T. rydbergii
Elecampane 2014 Inula helenium European Black Alder 2019 Alnus glutinosa
European Buckthorn 2016 Rhamnus cathartica
European Marsh Thistle 2012 Cirsium palustre
Garden Valerian 2021 Valeriana officinalis L.
Garlic Mustard 2013 Alliaria petiolata
Giant Hogweed 2022 Heracleum mantegazzianum Giant Knotweed 2018 Polygonum sachalinese
Giant Miscanthus 2012 Miscanthus x giganteus
Glossy Buckthorn (and Cultivars) 2016 Frangula alnus Grecian Foxglove 2019 Digitalis lanata
Hairy Vetch 2015 Vicia villosa
Hoary Alyssum 2017 Berteroa incana
Honeyberry 2021 Lonicera caerulea L.
Hound's Tongue, Gypsyflower 2012 Cynoglossum officinale
Iberian Starthistle 2015 Centaurea iberica
Japanese Barberry 2015 Berberis thunbergii
Japanese Hedgeparsley 2015 Torilis japonica Japanese Honeysuckle 2018 Lonicera japonica
Japanese Hops 2016 Humulus japonicus Japanese Knotweed 2018 Polygonum cuspidatum
Japanese Tree Lilac 2021 Syringa reticulata Johnsongrass 2022 Sorghum halepense
Kudzu 2021 Pueraria montana Leafy Spurge 2013 Euphorbia esula
Lesser celandine, fig buttercup 2020 Ficaria verna and Ranunculus ficaria Meadow Knapweed 2022 Centaurea x moncktonii
Mexican Fireweed 2017 Bassia scoparia
Morrow's Honeysuckle 2014 Lonicera morrowii
Multiflora Rose 2019 Rosa multiflora
Musk and Plumeless Thistles 2013 Carduus nutans and C. acanthoides
Narrowleaf Bittercress 2016 Cardamine impatiens Non-native Phragmites 2021 Phragmites australis ssp. australis Norway Maple 2018 Acer platanoides Orange Hawkweed 2018 Hieracium aurantiacum
Pale Swallow-wort 2022 Cynanchum rossicum
Palmer Amaranth 2014 Amaranthus palmeri
Paradise Plant 2011 Daphne mezereum Plumeless Thistle 2019 Carduus acanthoides
Poison Hemlock 2022 Conium maculatum
Porcelain Berry 2014 Ampelopsis brevipedunculata
Purple Loosetrife 2013 Lythrum salicaria
Purple Starthistle 2015 Centaurea calcitrapa
Red Hailstone, goldencreeper 2020 Thladiantha dubia Reed Canarygrass 2017 Phalaris arundinacea Round Leaf Bittersweet 2022 Celastrus orbiculatus, formerly called Oriental bittersweet
Russian Knapweed 2014 Acroptilon repens Saltcedar, tamarisk 2020 Tamarix ramosissima Siberian Elm 2020 Ulmus pumila Siberian Peashrub 2019 Caragana arborescens
Solidstem Burnet Saxifrage 2015 Pimpinella saxifraga
Spotted Knapweed 2013 Centaurea stoebe ssp. micranthos
Squarrose Knapweed 2015 Centaurea virgata
Tatarian Honeysuckle 2014 Lonicera tatarica
Tatarian Maple 2020 Acer tataricum Tree of Heaven 2019 Ailanthus altissima
Viper's Bugloss 2011 Echium vulgare Winged Burning Bush 2019 Euonymus alatus
White Sweetclover 2017 Melilotus alba
Wild Carrot / Queen Anne's Lace 2015 Dacus carota
Wild Parsnip 2016 Pastinaca sativa
Yellow and Dalmatian Toadflax 2011 Linaria vulgaris and L. dalmatica Yellow Hawkweed 2018 Hieracium caespitosum Yellow Starthistle 2022 Centaurea solstitialis
Yellow Sweetclover 2017 Melilotus officinalis