Invasive species - Wisconsin DNR

Terrestrial Invasive species - Regulated plants

Terrestrial invasives come in many forms including plants, animals, insects, fungi and diseases. They affect the health of our forests, prairies, parks, urban landscapes and more. When these landscapes are unhealthy, all the benefits they provide to us are at risk. The good news is, each one of us can make a difference. Learn what to look for, and you can help slow the spread of invasive species!

Learn about terrestrial invasives

Click on the buttons below to see what species are invasive in Wisconsin.

The buttons separate invasive plants and animals into regulated or non-regulated categories. Regulated species currently have legal restrictions under the Invasive Species Rule, Chapter NR 40. Non-regulated species currently are not regulated by Chapter NR 40. View our terminology page for classification definitions.

Terrestrial Invasive species - Regulated plants

Classification	Common name	Scientific name	NR40 Listing Date
Prohibited	Amur cork tree	Phellodendron amurense	5/1/2015
Prohibited	Asian loeseneri bittersweet	Celastrus loeseneri	5/1/2015
Prohibited	Bohemian knotweed	Fallopia x bohemicum or F. x bohemica or Polygonum × bohemicum	5/1/2015
Prohibited	Butterfly dock	Petasites hybridus	5/1/2015
Prohibited	Chinese wisteria	Wisteria sinensis	5/1/2015
Prohibited	Chinese yam	Dioscorea batatas or Dioscorea polystacha	5/1/2015
Prohibited	Colt's foot	Tussilago farfara	5/1/2015
Prohibited	Common barberry	Berberis vulgaris	5/1/2015
Prohibited	Diffuse knapweed	Centaurea diffusa	5/1/2015
Prohibited	Fiveleaf akebia or Chocolate vine	Akebia quinata	5/1/2015
Prohibited	Giant hogweed	Heracleum mantegazzianum	9/1/2009
Prohibited	Giant knotweed	Fallopia sachalinensis or Polygonum sachalinense	9/1/2009
Prohibited	Grecian foxglove	Digitalis lanata	5/1/2015
Prohibited	Himalayan blackberry	Rubus armeniacus	5/1/2015
Prohibited	Indian yam	Dioscorea oppositifolia	9/1/2009
Prohibited	Japanese chaff flower	Achyranthes japonica	5/1/2015
Prohibited	Japanese honeysuckle	Lonicera japonica	9/1/2009
Prohibited	Japanese stilt grass	Microstegium vimineum	9/1/2009
Prohibited	Japanese wisteria	Wisteria floribunda	5/1/2015
Prohibited	Johnsongrass	Sorghum halepense	5/1/2015
Prohibited	Kudzu	Pueraria montana or P. lobata	9/1/2009
Prohibited	Lesser celandine	Ranunculus ficaria	5/1/2015
Prohibited	Medusahead	Taeniatherum caput-medusae	5/1/2015
Prohibited	Mile−a−minute vine	Polygonum perfoliatum or Persicaria perfoliata	9/1/2009
Prohibited	Narrow leaf bittercress	Cardamine impatiens	5/1/2015
Prohibited	Pale or European swallow−wort	Vincetoxicum rossicum or Cynanchum rossicum	9/1/2009
Prohibited	Perennial or broadleaved pepperweed	Lepidium latifolium	9/1/2009
Prohibited	Policeman's helmet	Impatiens glandulifera	5/1/2015
Prohibited	Porcelain berry	Ampelopsis brevipedunculata	9/1/2009
Prohibited	Princess tree	Paulownia tomentosa	9/1/2009
Prohibited	Russian knapweed	Centaurea repens	5/1/2015
Prohibited	Sawtooth oak	Quercus acutissima	9/1/2009
Prohibited	Scotch broom	Cytisus scoparius	9/1/2009
Prohibited	Sericea or Chinese lespedeza	Lespedeza cuneata or Lespedeza sericea	9/1/2009
Prohibited	Spreading hedgeparsley	Torilis arvensis	9/1/2009
Prohibited	Wavy leaf basket grass	Oplismenus hirtellus ssp. undulatifolius	5/1/2015
Prohibited	Wineberry or wine raspberry	Rubus phoenicolasius	9/1/2009
Prohibited	Yellow star thistle	Centaurea solstitialis	9/1/2009
Prohibited/Restricted	Amur honeysuckle	Lonicera maackii	9/1/2009
Prohibited/Restricted	Black or Louise’s swallow−wort	Vincetoxicum nigrum or Cynanchum louiseae	9/1/2009
Prohibited/Restricted	Dalmatian toadflax	Linaria dalmatica	5/1/2015
Prohibited/Restricted	European marsh thistle	Cirsium palustre	9/1/2009
Prohibited/Restricted	Hairy willow herb	Epilobium hirsutum	9/1/2009
Prohibited/Restricted	Hill mustard	Bunias orientalis	9/1/2009
Prohibited/Restricted	Japanese hedgeparsley or erect hedgeparsley	Torilis japonica	9/1/2009
Prohibited/Restricted	Japanese hops	Humulus japonicus	9/1/2009
Prohibited/Restricted	Lyme grass or sand ryegrass	Leymus arenarius or Elymus arenarius	9/1/2009
Prohibited/Restricted	Phragmites or Common reed non-native ecotype	Phragmites australis non-native ecotype	9/1/2009
Prohibited/Restricted	Poison hemlock	Conium maculatum	9/1/2009
Prohibited/Restricted	Seaside goldenrod	Solidago sempervirens	5/1/2015
Prohibited/Restricted	Tall or reed mannagrass	Glyceria maxima	9/1/2009
Prohibited/Restricted	Wild chervil	Anthriscus sylvestris	9/1/2009
Restricted	Amur maple	Acer tataricum subsp. ginnala	5/1/2015
Restricted	Aquatic forget-me-not	Myosotis scorpioides	5/1/2015
Restricted	Autumn olive	Elaeagnus umbellata	9/1/2009
Restricted	Balfour's touch-me-not	Impatiens balfourii	5/1/2015
Restricted	Bell’s or showy bush honeysuckle	Lonicera x bella	9/1/2009
Restricted	Bishop's goutweed	Aegopodium podagraria	5/1/2015
Restricted	Black (European) alder	Alnus glutinosa	5/1/2015
Restricted	Black knapweed	Centaurea nigra	5/1/2015
Restricted	Black locust	Robinia pseudoacacia	5/1/2015
Restricted	Brown knapweed	Centaurea jacea	5/1/2015
Restricted	Burning bush	Euonymus alatus	5/1/2015
Restricted	Canada thistle	Cirsium arvense	9/1/2009
Restricted	Celandine	Chelidonium majus	9/1/2009
Restricted	Common buckthorn	Rhamnus cathartica	9/1/2009
Restricted	Common teasel	Dipsacus sylvestris or Dipsacus fullonum	9/1/2009
Restricted	Creeping bellflower	Campanula rapunculoides	9/1/2009
Restricted	Crown vetch	Coronilla varia	5/1/2015
Restricted	Cut−leaved teasel	Dipsacus laciniatus	9/1/2009
Restricted	Cypress spurge	Euphorbia cyparissias	9/1/2009
Restricted	Dame’s rocket	Hesperis matronalis	9/1/2009
Restricted	Field scabiosa	Knautia arvensis	5/1/2015
Restricted	Garden heliotrope or Valerian	Valeriana officinalis	5/1/2015
Restricted	Garden yellow loosestrife	Lysimachia vulgaris	5/1/2015
Restricted	Garlic mustard	Alliaria petiolata	9/1/2009
Restricted	Glossy buckthorn	Rhamnus frangula or Frangula alnus	9/1/2009
Restricted	Helleborine orchid	Epipactis helleborine	9/1/2009
Restricted	Hemp nettle, brittlestem hemp nettle	Galeopsis tetrahit	9/1/2009
Restricted	Hound’s tongue	Cynoglossum officinale	9/1/2009
Restricted	Hybrid cattail	Typha x glauca	9/1/2009
Restricted	Japanese barberry	Berberis thunbergii	5/1/2015
Restricted	Japanese knotweed	Fallopia japonica or Polygonum cuspidatum	9/1/2009
Restricted	Leafy spurge	Euphorbia esula	9/1/2009
Restricted	Moneywort	Lysimachia nummularia (or L. nummelaria)	5/1/2015
Restricted	Morrow’s honeysuckle	Lonicera morrowii	9/1/2009
Restricted	Multiflora rose	Rosa multiflora	9/1/2009
Restricted	Musk thistle or Nodding thistle	Carduus nutans	9/1/2009
Restricted	Narrow-leaf cattail	Typha angustifolia	9/1/2009
Restricted	Oriental bittersweet	Celastrus orbiculatus	9/1/2009
Restricted	Plumeless thistle	Carduus acanthoides	9/1/2009
Restricted	Purple loosestrife	Lythrum salicaria	9/1/2009
Restricted	Queen of the meadow	Filipendula ulmaria	5/1/2015
Restricted	ribbon grass or gardener’s garters and other ornamental variegated varieties and cultivars.	Phalaris arundinacea var. picta	5/1/2015
Restricted	Rose acacia or Bristly locust	Robinia hispida	5/1/2015
Restricted	Russian olive	Elaeagnus angustifolia	9/1/2009
Restricted	Scarlet pimpernel or Burnet saxifrage	Pimpinella saxifraga	5/1/2015
Restricted	Siberian elm	Ulmus pumila	5/1/2015
Restricted	Siberian peashrub	Caragana arborescens	5/1/2015
Restricted	Spotted knapweed	Centaurea biebersteinii, Centaurea maculosa or Centaurea stoebe	9/1/2009
Restricted	Tansy	Tanacetum vulgare	9/1/2009
Restricted	Tartarian honeysuckle	Lonicera tatarica	9/1/2009
Restricted	Tree of heaven	Ailanthus altissima	9/1/2009
Restricted	Tyrol knapweed	Centaurea nigrescens	5/1/2015
Restricted	White bedstraw	Galium mollugo	5/1/2015
Restricted	White mulberry	Morus alba	5/1/2015
Restricted	White poplar	Populus alba	5/1/2015
Restricted	Wild parsnip	Pastinaca sativa	9/1/2009
Restricted	Woodland forget-me-not	Myosotis sylvatica (or M. sylvaticum)	5/1/2015
Restricted	Wormwood	Artemisia absinthium	5/1/2015
Restricted	Yellow iris	Iris pseudacorus	5/1/2015

Last revised: July 10, 2015