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DNR invasive species staff

Aquatic Invasive species - Regulated plants

Whether they come in ballast water, on the hulls of recreation boats or from the water of an angler’s bait bucket, many non-native species such as zebra mussels and Eurasian water milfoil have found their way into Wisconsin’s waterways. Their presence can cause severe damage to local ecosystems, industry and tourism. However, the Wisconsin DNR is part of a strong partnership of public and private stakeholders in Wisconsin committed to an effective strategy of prevention, containment and control. The more you know about these invaders, the more you can do to help stop the spread to Wisconsin's precious waters.

Learn about aquatic invasives

View a printable list of all species regulated by NR 40 [PDF] or a list of plants only [PDF].


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.

Plants Regulated Non-regulated
Animals Regulated Non-regulated


Aquatic Invasive species - Regulated plants

Classification Common Name Scientific Name Factsheet Photo
Gallery
Lit.
Review
SAG
Form
NR40 Listing Date
Prohibited Giant reed Arundo donax Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Mosquito fern Azolla pinnata Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Restricted Flowering rush Butomus umbellatus Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited Fanwort, Carolina Fanwort Cabomba caroliniana Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited Australian swamp crop or New Zealand pygmyweed Crassula helmsii Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited Brazilian waterweed or wide-leaf anacharis Egeria densa Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited Anchored water hyacinth Eichhornia azurea Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Water hyacinth, floating Eichhornia crassipes Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Mudmat Glossostigma cleistanthum Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Hydrilla Hydrilla verticillata Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited European frogbit Hydrocharis morsus−ranae Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited Floating marsh pennywort Hydrocotyle ranunculoides Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Indian Swampweed Hygrophila polysperma Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Water spinach, swamp morning-glory Ipomoea aquatica Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Restricted Yellow iris Iris pseudacorus Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Oxygen−weed, African elodea or African waterweed Lagarosiphon major Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited Asian marshweed Limnophila sessiliflora Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Wanded loosestrife Lythrum virgatum Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Parrot feather Myriophyllum aquaticum Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Restricted Eurasian watermilfoil Myriophyllum spicatum Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Restricted Spiny naiad Najas marina Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Brittle naiad, or lesser, bushy, slender, spiny or minor naiad or waternymph Najas minor Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited Sacred Lotus Nelumbo nucifera Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Yellow floating heart Nymphoides peltata Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited Java waterdropwort or Vietnamese parsley Oenanthe javanica Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Ducklettuce Ottelia alismoides Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Water lettuce Pistia stratiotes Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Restricted Curly−leaf pondweed Potamogeton crispus Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited Hawaii arrowhead Sagittaria sagittifolia Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Giant Salvinia Salvinia herzogii Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Giant salvinia Salvinia molesta Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Water Soldiers Stratiotes aloides Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Water chestnut Trapa natans Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species. Click to view SAG Form for this species. 9/1/2009
Prohibited Southern cattail Typha domingensis Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015
Prohibited Graceful cattail Typha laxmannii Click to view factsheet for this species. Click to view photo gallery for this species. Click to view Lit. Review for this species.   5/1/2015

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Last revised: July 10, 2015

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