Over 300 plant species are considered to be invasive, noxious, or pests by one or more jurisdictions in the Midwestern U.S. The following regional list compiles all the plant species regulated through state law and/or listed as invasive by a state agency or invasive plant council in the eight-state region that MIPN serves. Click here to learn more about the risk assessment processes that are used to determine invasiveness.
The list is presented alphabetically by Latin name but is easily searchable by common or Latin name – just start typing in the search box! You can also sort the database by listing status by clicking the carrot next to each column header.
Links to the appropriate state laws or agency/plant council webpages are provided in the index below. If you are aware of an updated list or amended law, please help us keep this list up to date by emailing MIPN’s Coordinator at mipn@mortonarb.org.
Last updated June 2019. Please click here to download an Excel version of the most recent list.
Aq = Illinois Aquatic Injurious Plant Species
A = Invasive plants of concern
Pt = Prohibited terrestrial plant
PAq = Prohibited aquatic plant
H = High invasive rank
M = Medium invasive rank
L = Low invasive rank
C = Caution species
Pr = Primary noxious weed
A = General invasive plant list
N = Noxious weed
A = Widespread distribution in 1 or more of MI's ecoregions
B = Local distribution in 1 or more of MI's ecogregions
C = Isolated distribution in 1 or more of MI's ecoregions
W = Watch List
PAq = Prohibited aquatic plant
RAq = Restricted aquatic plant
E = Noxious weed, eradicate list
C = Noxious weed, control list
R = Noxious weed, restricted list
SR = Noxious weed, specially regulated list
Minnesota List
A = Terrestrial invasive plant
Missouri List
A = General invasive plant list
R = Restricted invasive plants
A = Invasive
B = Pending further review
N = Noxious Weed
P = Prohibited Invasive Plant
R = Restricted Invasive Plant
Wisconsin Lists
INR = Invasive, not restricted (WI DNR)
C = Caution (WI DNR): aquatics and terrestrials
1 Indiana list is based on assessments by the Indiana Invasive Species Council's Plant Advisory Committee
2 Wisconsin list from the Invasive Plant Association of Wisconsin's (IPAW's) Working List of Invasive Plants
3 Prohibited or restricted by county. See text of state law for more detail.
4 Also designated as an invasive aquatic plant statewide under s. NR 109.07 (2).
5 Species is native to North America
6 Ohio list from the Ohio Invasive Plants Council's plant assessments
7 There are cultivar and/or hybrid exemptions to the rule or regulation
8 Prohibitions go into effect 04/18/2020
9 Prohibitions go into effect 05/01/2020
10 Prohibitions go into effect 01/07/2023
11 Only regulated under certain growing conditions (see regulation for details)