County Invasive Plants Lists for WI 1900-2024
WIFDN has generated an interactive table that contains invasive and potentially invasive plant species from 1900 to 2024 in Wisconsin. While it largely follows Wisconsin NR40, WIFDN staff have worked to add other species at a high risk for destructive spread in the state.
Find your county of interest below! Zoom in to see county names or click the [ ] to make it full screen. By clicking on a county shape, you can then click a link in the description that open a list of species occurrences for that county. There are options for downloading the data at the top of the table. A key to regulation status is located below the state maps.
View our “how-to” video below.
Click here to download the master table of all counties sorted by individual tabs in a spreadsheet, or here to see it in Google Sheets.
Legend of Regulation Status
| wdt_ID | wdt_created_by | wdt_created_at | wdt_last_edited_by | wdt_last_edited_at | Status | Defintion |
|---|---|---|---|---|---|---|
| 12 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | CURRENT STATUS | NR 40 WEB PAGE |
| 13 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | Unregulated | Species is not currently regulated by NR 40, nor is it recommened for regulation in Wisconsin. |
| 14 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | Universally Restricted | Species is NR40 Restricted in all counties in Wisconsin. Species is of concern for Wisconsin via Wis. Admin. Code NR 40. Illegal to transport, transfer or introduce in Wisconsin. |
| 15 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | Universally Prohibited | Species is NR40 Prohibited in all counties in Wisconsin. Species is of highest concern for Wisconsin via Wis. Admin. Code NR 40. Illegal to possess, transport, transfer or introduce in Wisconsin. |
| 16 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | Prohibited | Split listed by counties, Prohibited in the county of note. Species is of highest concern for Wisconsin via Wis. Admin. Code NR 40. Illegal to possess, transport, transfer or introduce in Wisconsin. |
| 17 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | Restricted | Split listed by counties, Restricted in the county of note. Species is of concern for Wisconsin via Wis. Admin. Code NR 40. Illegal to transport, transfer or introduce in Wisconsin. |
| 18 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | Restricted Frontier | Species is NR40 Restricted in a county that is adjacent to one or more counties where it is Prohibited, signifying increased risk of spread to uninfested areas |
| 19 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | FUTURE STATUS | WI Invasive Species Council link |
| 20 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | Universally Restricted WISC Recommendation | Species is recommended to be Restricted in all counties when NR40 is updated (2027-2028). It will illegal to transport, transfer or introduce in Wisconsin. |
| 21 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | Universally Prohibited WISC Recommendation | Species is recommended to be Restricted in all counties when NR40 is updated (2027-2028). It will be illegal to possess, transport, transfer or introduce in Wisconsin. |
| 22 | mrwallrath | 08/08/2025 12:38 PM | mrwallrath | 08/08/2025 12:38 PM | Split-Listed WISC Recommendation | Species is recommended to be split-listed between Restricted and Prohibited in certaom counties when NR40 is updated (2027-2028). |
This page is part of an invasive species learning module with the Wisconsin First Detector Network. Click on these buttons to navigate to the other sections of the module