Regulated Species

Changes to NR 40 Effective Jan. 1, 2027

Attention: This webpage and the species profiles below are currently being updated to reflect revisions to Wisconsin’s Invasive Species Rule. In 2026, the department completed the administrative rule revision process for ch. NR 40. As of Jan. 1, 2027 the revisions to the rule will become effective. Please refer to the summary of changes to species regulations for the most concise description of changes to species classified under the rule. To see all changes to the rule beyond the species regulations, please refer to the Rule Revision Guide or the board order.

Habitat Abbreviation Legend: T = Terrestrial, W = Wetland, A = Aquatic

Category	Common Name	Scientific name	NR40 Regulated	NR40 Added	Habitat
Plant	Amur cork tree	Phellodendron amurense	Prohibited	5/1/2015	T
Plant	Amur honeysuckle	Lonicera maackii	Prohibited/Restricted	9/1/2009	W, T
Plant	Amur maple	Acer tataricum subsp. ginnala	Restricted	5/1/2015	T
Plant	Anchored water hyacinth	Eichhornia azurea	Prohibited	5/1/2015	A, W
Plant	Aquatic forget-me-not	Myosotis scorpioides	Restricted	5/1/2015	W, T
Plant	Asian loeseneri bittersweet	Celastrus loeseneri	Prohibited	5/1/2015	T
Plant	Asian marshweed	Limnophila sessiliflora	Prohibited	5/1/2015	A, W
Plant	Australian swamp crop or New Zealand pygmyweed	Crassula helmsii	Prohibited	9/1/2009	A
Plant	Autumn olive	Elaeagnus umbellata	Restricted	9/1/2009	T
Plant	Balfour's touch-me-not	Impatiens balfourii	Restricted	5/1/2015	W, T
Plant	Bell's or showy bush honeysuckle	Lonicera x bella	Restricted	9/1/2009	W, T
Plant	Bishop's goutweed	Aegopodium podagraria	Restricted	5/1/2015	T
Plant	Black (European) alder	Alnus glutinosa	Restricted	5/1/2015	T
Plant	Black knapweed	Centaurea nigra	Restricted	5/1/2015	T
Plant	Black locust	Robinia pseudoacacia	Restricted	5/1/2015	T
Plant	Black or Louise's swallow−wort	Vincetoxicum nigrum or Cynanchum louiseae	Prohibited/Restricted	9/1/2009	T
Plant	Bohemian knotweed	Fallopia x bohemicum or F. x bohemica or Polygonum × bohemicum	Prohibited	5/1/2015	W, T
Plant	Brittle naiad, or lesser, bushy, slender, spiny or minor naiad or water nymph	Najas minor	Prohibited	9/1/2009	A
Plant	Brown knapweed	Centaurea jacea	Restricted	5/1/2015	T
Plant	Burning bush	Euonymus alatus	Restricted	5/1/2015	T
Plant	Butterfly dock	Petasites hybridus	Prohibited	5/1/2015	W, T
Plant	Canada thistle	Cirsium arvense	Restricted	9/1/2009	W, T
Plant	Celandine	Chelidonium majus	Restricted	9/1/2009	T
Plant	Chinese wisteria	Wisteria sinensis	Prohibited	5/1/2015	T
Plant	Chinese yam	Dioscorea batatas or D. polystacha	Prohibited	5/1/2015	W, T
Plant	Colt's foot	Tussilago farfara	Prohibited	5/1/2015	W, T
Plant	Common barberry	Berberis vulgaris	Prohibited	5/1/2015	T
Plant	Common buckthorn	Rhamnus cathartica	Restricted	9/1/2009	W, T
Plant	Common teasel	Dipsacus sylvestris or D. fullonum	Restricted	9/1/2009	W, T
Plant	Creeping bellflower	Campanula rapunculoides	Restricted	9/1/2009	T
Plant	Crown vetch	Coronilla varia	Restricted	5/1/2015	T
Plant	Curly−leaf pondweed	Potamogeton crispus	Restricted	9/1/2009	A
Plant	Cut−leaved teasel	Dipsacus laciniatus	Restricted	9/1/2009	W, T
Plant	Cypress spurge	Euphorbia cyparissias	Restricted	9/1/2009	T
Plant	Dalmatian toadflax	Linaria dalmatica	Prohibited/Restricted	5/1/2015	T
Plant	Dame's rocket	Hesperis matronalis	Restricted	9/1/2009	W, T
Plant	Diffuse knapweed	Centaurea diffusa	Prohibited	5/1/2015	T
Plant	Ducklettuce	Ottelia alismoides	Prohibited	5/1/2015	A
Plant	Egeria	Egeria densa	Prohibited	9/1/2009	A
Plant	Eurasian watermilfoil	Myriophyllum spicatum	Restricted	9/1/2009	A
Plant	European frogbit	Hydrocharis morsus−ranae	Prohibited	9/1/2009	A
Plant	European marsh thistle	Cirsium palustre	Prohibited/Restricted	9/1/2009	W, T
Plant	Fanwort, Carolina Fanwort	Cabomba caroliniana	Prohibited	9/1/2009	A
Plant	Field scabiosa	Knautia arvensis	Restricted	5/1/2015	T
Plant	Fiveleaf akebia or Chocolate vine	Akebia quinata	Prohibited	5/1/2015	T
Plant	Floating marsh pennywort	Hydrocotyle ranunculoides	Prohibited	5/1/2015	A
Plant	Flowering rush	Butomus umbellatus	Restricted	9/1/2009	A, W
Plant	Garden heliotrope or Valerian	Valeriana officinalis	Restricted	5/1/2015	W, T
Plant	Garden yellow loosestrife	Lysimachia vulgaris	Restricted	5/1/2015	W, T
Plant	Garlic mustard	Alliaria petiolata	Restricted	9/1/2009	W, T
Plant	Giant hogweed	Heracleum mantegazzianum	Prohibited	9/1/2009	W, T
Plant	Giant knotweed	Fallopia sachalinensis or Polygonum sachalinense	Prohibited	9/1/2009	W, T
Plant	Giant reed	Arundo donax	Prohibited	5/1/2015	A, W
Plant	Giant salvinia	Salvinia herzogii	Prohibited	5/1/2015	A, W
Plant	Giant salvinia	Salvinia molesta	Prohibited	5/1/2015	A, W
Plant	Glossy buckthorn	Rhamnus frangula or Frangula alnus	Restricted	9/1/2009	W, T
Plant	Graceful cattail	Typha laxmannii	Prohibited	5/1/2015	A, W
Plant	Grecian foxglove	Digitalis lanata	Prohibited	5/1/2015	T
Plant	Hairy willow herb	Epilobium hirsutum	Prohibited/Restricted	9/1/2009	W, T
Plant	Hawaii arrowhead	Sagittaria sagittifolia	Prohibited	5/1/2015	A, W
Plant	Helleborine orchid	Epipactis helleborine	Restricted	9/1/2009	T
Plant	Hemp nettle, brittlestem hemp nettle	Galeopsis tetrahit	Restricted	9/1/2009	T
Plant	Hill mustard	Bunias orientalis	Prohibited/Restricted	9/1/2009	T
Plant	Himalayan blackberry	Rubus armeniacus	Prohibited	5/1/2015	T
Plant	Hound's tongue	Cynoglossum officinale	Restricted	9/1/2009	T
Plant	Hybrid cattail	Typha x glauca	Restricted	9/1/2009	W, T
Plant	Hydrilla	Hydrilla verticillata	Prohibited	9/1/2009	A
Plant	Indian Swampweed	Hygrophila polysperma	Prohibited	5/1/2015	A
Plant	Indian yam	Dioscorea oppositifolia	Prohibited	9/1/2009	W, T
Plant	Japanese barberry	Berberis thunbergii	Restricted	5/1/2015	T
Plant	Japanese chaff flower	Achyranthes japonica	Prohibited	5/1/2015	T
Plant	Japanese hedge parsley or erect hedge parsley	Torilis japonica	Prohibited/Restricted	9/1/2009	T
Plant	Japanese honeysuckle	Lonicera japonica	Prohibited	9/1/2009	W, T
Plant	Japanese hops	Humulus japonicus	Prohibited/Restricted	9/1/2009	W, T
Plant	Japanese knotweed	Fallopia japonica or Polygonum cuspidatum	Restricted	9/1/2009	W, T
Plant	Japanese stilt grass	Microstegium vimineum	Prohibited	9/1/2009	W, T
Plant	Japanese wisteria	Wisteria floribunda	Prohibited	5/1/2015	T
Plant	Java waterdropwort or Vietnamese parsley	Oenanthe javanica	Prohibited	5/1/2015	A, W
Plant	Johnsongrass	Sorghum halepense	Prohibited	5/1/2015	T
Plant	Kudzu	Pueraria montana or P. lobata	Prohibited	9/1/2009	T
Plant	Leafy spurge	Euphorbia esula	Restricted	9/1/2009	T
Plant	Lesser celandine	Ranunculus ficaria	Prohibited	5/1/2015	W, T
Plant	Lyme grass or sand ryegrass	Leymus arenarius or Elymus arenarius	Prohibited/Restricted	9/1/2009	W, T
Plant	Medusahead	Taeniatherum caput-medusae	Prohibited	5/1/2015	T
Plant	Mile−a−minute vine	Polygonum perfoliatum or Persicaria perfoliata	Prohibited	9/1/2009	W, T
Plant	Moneywort	Lysimachia nummularia (or L. nummelaria)	Restricted	5/1/2015	W, T
Plant	Morrow's honeysuckle	Lonicera morrowii	Restricted	9/1/2009	W, T
Plant	Mosquito fern	Azolla pinnata	Prohibited	5/1/2015	A, W
Plant	Mudmat	Glossostigma cleistanthum	Prohibited	5/1/2015	A, W
Plant	Multiflora rose	Rosa multiflora	Restricted	9/1/2009	T
Plant	Musk thistle or Nodding thistle	Carduus nutans	Restricted	9/1/2009	T
Plant	Narrow-leaf bittercress	Cardamine impatiens	Prohibited	5/1/2015	W, T
Plant	Narrow-leaf cattail	Typha angustifolia	Restricted	9/1/2009	W, T
Plant	Oriental bittersweet	Celastrus orbiculatus	Restricted	9/1/2009	T
Plant	Oxygen−weed, African elodea or African waterweed	Lagarosiphon major	Prohibited	9/1/2009	A
Plant	Pale or European swallow−wort	Vincetoxicum rossicum or Cynanchum rossicum	Prohibited	9/1/2009	T
Plant	Parrot feather	Myriophyllum aquaticum	Prohibited	9/1/2009	A
Plant	Perennial or broadleaved pepperweed	Lepidium latifolium	Prohibited	9/1/2009	T
Plant	Phragmites or Common reed non-native ecotype	Phragmites australis non-native ecotype	Prohibited/Restricted	9/1/2009	W, T
Plant	Plumeless thistle	Carduus acanthoides	Restricted	9/1/2009	T
Plant	Poison hemlock	Conium maculatum	Prohibited/Restricted	9/1/2009	W, T
Plant	Policeman's helmet	Impatiens glandulifera	Prohibited	5/1/2015	W, T
Plant	Porcelain berry	Ampelopsis brevipedunculata	Prohibited	9/1/2009	W, T
Plant	Princess tree	Paulownia tomentosa	Prohibited	9/1/2009	T
Plant	Purple loosestrife	Lythrum salicaria	Restricted	9/1/2009	W, T
Plant	Queen of the meadow	Filipendula ulmaria	Restricted	5/1/2015	W, T
Plant	ribbon grass or gardener's garters and other ornamental variegated varieties and cultivars.	Phalaris arundinacea var. picta	Restricted	5/1/2015	W, T
Plant	Rose acacia or Bristly locust	Robinia hispida	Restricted	5/1/2015	T
Plant	Russian knapweed	Centaurea repens	Prohibited	5/1/2015	T
Plant	Russian olive	Elaeagnus angustifolia	Restricted	9/1/2009	T
Plant	Sacred Lotus	Nelumbo nucifera	Prohibited	5/1/2015	A
Plant	Sawtooth oak	Quercus acutissima	Prohibited	9/1/2009	T
Plant	Scarlet pimpernel or Burnet saxifrage	Pimpinella saxifraga	Restricted	5/1/2015	W, T
Plant	Scotch broom	Cytisus scoparius	Prohibited	9/1/2009	T
Plant	Seaside goldenrod	Solidago sempervirens	Prohibited/Restricted	5/1/2015	T
Plant	Sericea or Chinese lespedeza	Lespedeza cuneata or L. sericea	Prohibited	9/1/2009	T
Plant	Siberian elm	Ulmus pumila	Restricted	5/1/2015	T
Plant	Siberian peashrub	Caragana arborescens	Restricted	5/1/2015	T
Plant	Southern cattail	Typha domingensis	Prohibited	5/1/2015	A, W
Plant	Spiny naiad	Najas marina	Restricted	5/1/2015	A, W
Plant	Spotted knapweed	Centaurea biebersteinii, C. maculosa or C. stoebe	Restricted	9/1/2009	T
Plant	Spreading hedge parsley	Torilis arvensis	Prohibited	9/1/2009	T
Plant	Tall or reed mannagrass	Glyceria maxima	Prohibited/Restricted	9/1/2009	W, T
Plant	Tansy	Tanacetum vulgare	Restricted	9/1/2009	T
Plant	Tartarian honeysuckle	Lonicera tatarica	Restricted	9/1/2009	W, T
Plant	Tree of heaven	Ailanthus altissima	Restricted	9/1/2009	T
Plant	Tyrol knapweed	Centaurea nigrescens	Restricted	5/1/2015	T
Plant	Wanded loosestrife	Lythrum virgatum	Prohibited	5/1/2015	A, W
Plant	Water chestnut	Trapa natans	Prohibited	9/1/2009	A
Plant	Water hyacinth, floating	Eichhornia crassipes	Prohibited	5/1/2015	A, W
Plant	Water lettuce	Pistia stratiotes	Prohibited	5/1/2015	A, W
Plant	Water Soldiers	Stratiotes aloides	Prohibited	5/1/2015	A, W
Plant	Water spinach, swamp morning-glory	Ipomoea aquatica	Prohibited	5/1/2015	A, W
Plant	Wavy leaf basket grass	Oplismenus hirtellus ssp. undulatifolius	Prohibited	5/1/2015	T
Plant	White bedstraw	Galium mollugo	Restricted	5/1/2015	T
Plant	White mulberry	Morus alba	Restricted	5/1/2015	T
Plant	White poplar	Populus alba	Restricted	5/1/2015	T
Plant	Wild chervil	Anthriscus sylvestris	Prohibited/Restricted	9/1/2009	W, T
Plant	Wild parsnip	Pastinaca sativa	Restricted	9/1/2009	T
Plant	Wineberry or wine raspberry	Rubus phoenicolasius	Prohibited	9/1/2009	T
Plant	Woodland forget-me-not	Myosotis sylvatica (or M. sylvaticum)	Restricted	5/1/2015	T
Plant	Wormwood	Artemisia absinthium	Restricted	5/1/2015	T
Plant	Yellow floating heart	Nymphoides peltata	Prohibited	9/1/2009	A
Plant	Yellow iris	Iris pseudacorus	Restricted	5/1/2015	A, W, T
Plant	Yellow star thistle	Centaurea solstitialis	Prohibited	9/1/2009	T
Other	Cylindro (cyanobacteria)	Cylindrospermopsis raciborskii	Prohibited	9/1/2009	A
Other	Didymo or rock snot	Didymosphenia geminata	Prohibited	9/1/2009	A
Other	Golden alga	Prymnesium parvum	Prohibited	9/1/2009	A
Other	Killer algae	Caulerpa taxifolia	Prohibited	5/1/2015	A
Other	Novel cyanobacterial epiphyte of the order Stigonematales linked with avian vacuolar myelinopathy	Stigonematales spp.	Prohibited	9/1/2009	A
Other	Starry stonewort (alga)	Nitellopsis obtusa	Prohibited	9/1/2009	A
Other	Ulva species, including species previously known as Enteromorpha species	Ulva (Enteromorpha) species	Prohibited	9/1/2009	A
Other	White-nose syndrome fungal pathogen	Pseudogymnoascus destructans	Prohibited	6/1/2011	T
Animal	Alewife	Alosa pseudoharengus	Restricted	9/1/2009	A
Animal	Arctic char (2)	Salvelinus alpinus	Restricted	9/1/2009	A
Animal	Asian clam	Corbicula fluminea	Prohibited	9/1/2009	A
Animal	Asian longhorned beetle	Anoplophora glabripennis	Prohibited	9/1/2009	T
Animal	Atlantic salmon (2)	Salmo salar	Restricted	9/1/2009	A
Animal	Banded mystery snail	Viviparus georgianus	Restricted	5/1/2015	A
Animal	Bighead carp	Hypophthalmichthys nobilis	Prohibited	9/1/2009	A
Animal	Bitterling (3)	Rhodeus spp.	Restricted	9/1/2009	A
Animal	Black carp	Mylopharyngodon piceus	Prohibited	9/1/2009	A
Animal	Bloody shrimp	Hemimysis anomala	Prohibited	9/1/2009	A
Animal	Brown trout (2)	Salmo trutta	Restricted	9/1/2009	A
Animal	Chinese hi-fin banded shark (3)	Myxocyprinus asiaticus	Restricted	9/1/2009	A
Animal	Chinese mitten crabs	Eriocheir sinensi	Prohibited	9/1/2009	A
Animal	Chinese mystery snail	Cipangopaludina chinensis	Restricted	9/1/2009	A
Animal	Chinook salmon (2)	Oncorhynchus tshawytscha	Restricted	9/1/2009	A
Animal	Coho salmon (2)	Oncorhynchus kisutch	Restricted	9/1/2009	A
Animal	Common carp	Cyprinus carpio	Restricted	9/1/2009	A
Animal	Crayfish - non-native	Crayfish	Prohibited	9/1/2009	A, W
Animal	Eastern mosquitofish	Gambusia holbrooki	Restricted	9/1/2009	A
Animal	Emerald ash borer	Agrilus planipennis	Restricted	9/1/2009	T
Animal	European valve snail	Valvata piscinalis	Restricted	5/1/2015	A
Animal	Faucet snail	Bithynia tentaculata	Prohibited	9/1/2009	A
Animal	Feral domestic swine	Sus domestica	Prohibited	9/1/2009	T
Animal	Fishhook water flea	Cercopagis pengoi	Prohibited	9/1/2009	A
Animal	Golden mussel	Limnoperna fortunei	Prohibited	5/1/2015	A
Animal	Goldfish *(3)	Carassius auratus	Restricted	9/1/2009	A
Animal	Grass carp	Ctenopharyngodon idella	Prohibited	9/1/2009	A
Animal	Hemlock woolly adelgid	Adelges tsugae	Prohibited	9/1/2009	T
Animal	Ide (3)	Leuciscus idus	Restricted	9/1/2009	A
Animal	Japanese trapdoor snail or Japanese mystery snail	Cipangopaludina japonica	Restricted	5/1/2015	A
Animal	Jumping worm	Amynthas or Amynthus species	Restricted	9/1/2009	T
Animal	Killer Shrimp	Dikerogammarus villosus	Prohibited	5/1/2015	A
Animal	Koi carp *(3)	Cyprinus rubrofuscus	Restricted	9/1/2009	A
Animal	Malaysian trumpet snail	Melanoides tuberculata	Prohibited	5/1/2015	A
Animal	Monk or Quaker parakeet or parrot	Myiopsitta monachus	Prohibited	9/1/2009	T
Animal	Mountain Pine Beetle	Dendroctonus ponderosae	Prohibited	5/1/2015	T
Animal	New Zealand mud snail	Potamopyrgus antipodarum	Prohibited	9/1/2009	A
Animal	Nutria	Myocastor coypus	Prohibited	5/1/2015	A, W, T
Animal	Pink salmon (2)	Oncorhynchus gorbuscha	Restricted	9/1/2009	A
Animal	Quagga mussel	Dreissena rostriformis	Prohibited	9/1/2009	A
Animal	Rainbow smelt	Osmerus mordax	Restricted	9/1/2009	A
Animal	Rainbow trout (2)	Oncorhynchus mykiss	Restricted	9/1/2009	A
Animal	Red shiner	Cyprinella lutrensis	Prohibited	9/1/2009	A
Animal	Redear sunfish (2)	Lepomis microlophus	Restricted	9/1/2009	A
Animal	Round goby	Neogobius melanostomus	Restricted	9/1/2009	A
Animal	Rudd	Scardinius erythrophthalmus	Prohibited	9/1/2009	A
Animal	Ruffe	Gymnocephalus cernuus	Restricted	9/1/2009	A
Animal	Russian boar & other wild swine	Sus scrofa	Prohibited	9/1/2009	T
Animal	Rusty crayfish (non-native established)	Orconectes rusticus	Restricted	9/1/2009	A, W
Animal	Sea lamprey	Petromyzon marinus	Restricted	9/1/2009	A
Animal	Silver carp	Hypophthalmichthys molitrix	Prohibited	9/1/2009	A
Animal	Snakehead family	Channidae	Prohibited	9/1/2009	A
Animal	Spiny water flea	Bythotrephes cederstroemi	Prohibited	9/1/2009	A
Animal	Spongy moth, North American or European subspecies	Lymantria dispar dispar	Restricted	9/1/2009	T
Animal	Spongy moth, subspecies with flight-capable females	Lymantria dispar asiatica or L. dispar japonica	Prohibited	9/1/2009	T
Animal	Sterlet (3)	Acipenser ruthenus	Restricted	9/1/2009	A
Animal	Sudden oak death pathogen	Phytophthora ramorum	Prohibited	9/1/2009	T
Animal	Tench	Tinca tinca	Prohibited	9/1/2009	A
Animal	Thousand cankers disease of walnut	Geosmithia morbida	Prohibited	5/1/2015	T
Animal	Three-spine stickleback	Gasterosteus aculeatus	Restricted	9/1/2009	A
Animal	Tiger trout (2)	Salvelinus fontinalis x Salmo trutta	Restricted	9/1/2009	A
Animal	Tilapia	Tilapia spp.	Restricted	9/1/2009	A
Animal	Tubenose Goby	Proterorhinus marmoratus	Restricted	9/1/2009	A
Animal	Walnut twig beetle	Pityophthorus juglandis	Prohibited	5/1/2015	T
Animal	Water flea	Daphnia lumholtzi	Prohibited	9/1/2009	A
Animal	Weather loach (3)	Misgurnus anguillicaudatus	Restricted	9/1/2009	A
Animal	Western mosquitofish	Gambusia affinis	Restricted	9/1/2009	A
Animal	White perch	Morone americana	Restricted	9/1/2009	A
Animal	Zander	Sander lucioperca	Prohibited	9/1/2009	A
Animal	Zebra mussel	Dreissena polymorpha	Restricted	9/1/2009	A

Regulated Species

Changes to NR 40 Effective Jan. 1, 2027

Invasive Species

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Invasives_Content Page_Regulated Species

Regulated Species

Changes to NR 40 Effective Jan. 1, 2027

Invasive Species

For more information, contact