Ezina · A field manual for plant care · Contiguous U.S.Vol. I · Ed. 2027 · Proof copy

Invasive plant lists, state by state

43 states publish a list of the plants they regulate. All 43 are reproduced here in full, 2,130 listings, each one citing the statute or administrative code it comes from.

A listing tells you what a state regulates, not where a plant belongs. Nativity is a county-level question, so use the county checker for a specific address.

Looking for one plant rather than one state?

Check a plant against your county →
State Native here Regulated Under
Alabama 550 28 Ala. Admin. Code r. 80-10-14-.04
Arizona 536 43 Ariz. Admin. Code R3-4-245, Tables 4-6
Arkansas 508 27 2 CAR 50-101(d) (Circular 11)
California 794 162 Cal. Code Regs. tit. 3, 4500
Colorado 601 78 8 CCR 1206-2
Connecticut no county data 60 Conn. Gen. Stat. 22a-381d (as amended by P.A. 24-11)
Delaware 503 36 3 Del. Admin. Code 806 §3.0
Florida 495 72 Fla. Admin. Code r. 5B-57.007
Idaho 633 66 IDAPA 02.06.09.220
Illinois 651 33 17 Ill. Adm. Code 1100.30 (Illinois Exotic Weed Act, 525 ILCS 10)
Indiana 587 43 312 IAC 18-3-25
Iowa 372 23 Iowa Code 317.1A
Kansas 428 14 K.A.R. 4-8-44
Louisiana 526 27 La. Admin. Code tit. 76, Pt. VII, 1101
Maine 483 64 01-001 CMR Ch. 273
Maryland 290 19 COMAR 15.06.04.06
Massachusetts 601 144 Massachusetts Prohibited Plant List (MDAR), M.G.L. c.128 ss.2, 16-31A
Michigan 596 19 MCL 324.41301 as amended by MDARD Invasive Species Order Amend. No. 1 of 2026
Minnesota 549 46 Minn. Stat. 18.771 / Minn. R. 1505.0730
Mississippi 523 10 Miss. Admin. Code Title 2, Pt. 1, Subpt. 3, Ch. 01, R. 136.01
Missouri 555 12 2 CSR 70-45.005
Montana 529 40 Montana Noxious Weed List (eff. June 21, 2019), ARM 4.5.201
Nebraska 449 13 25 Neb. Admin. Code Ch. 10, 001
Nevada 610 53 NAC 555.010
New Hampshire 484 16 N.H. Admin. Code Agr 3802.01
New Jersey 630 29 N.J. Invasive Species Management Act, P.L.2025 c.290, sec. 4.a
New Mexico 588 36 New Mexico Noxious Weed List (June 2020 memo), NMSA 1978 76-7D-1 et seq.
New York 702 65 6 NYCRR 575.3 (prohibited) / 575.4 (regulated)
North Carolina 609 15 02 NCAC 48A .1701
North Dakota 396 11 N.D. Admin. Code 7-06-01-02
Ohio 593 86 Ohio Admin. Code 901:5-37-01 (noxious weeds) + 901:5-30-01 (invasive plants)
Oklahoma 417 3 OAC 35:30-33-2
Oregon 724 126 OAR 603-052-1200
Pennsylvania 646 57 3 Pa.C.S. 1501-1562 (Act 46 of 2017)
South Carolina 518 96 S.C. Code Regs. R.27-135
South Dakota 451 7 ARSD 12:62:03:01.06
Tennessee 573 13 Tenn. Comp. R. & Regs. 0080-06-24-.02
Utah 618 52 Utah Admin. Code R68-9
Vermont 469 39 Vt. Quarantine #3 - Noxious Weeds; Code Vt. R. 20-031-021
Virginia 653 26 2VAC5-317-20
Washington 670 166 WAC 16-750
West Virginia 517 14 W. Va. Code R. 61-14A-5
Wisconsin 559 141 Wis. Admin. Code NR 40.04

States with no list here

These 7 have no page, rather than a page reporting zero. Some publish no state-wide list at all; for others Ezina has not sourced one yet. Either way, saying nothing is regulated there would be wrong, so we do not say it.

The county checker still works in all of them, because nativity comes from USDA records rather than from state law. If you know of a published list we are missing, send it to [email protected].

Questions

Which states regulate invasive plants?

43 states have a published invasive-plant or noxious-weed list that Ezina reproduces: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Idaho, Illinois, Indiana, Iowa, Kansas, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Tennessee, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin. The remaining states either publish no list or publish one Ezina has not yet sourced.

Which state regulates the most plants?

Washington regulates the most, at 166 species, followed by California (162) and Massachusetts (144). Oklahoma regulates the fewest, at 3.

Is a plant legal to sell if my state does not list it?

Usually, but a list is a legal instrument rather than an ecological verdict. Plants spread aggressively long before a state gets around to naming them, and states add species years after the problem is documented. Absence from a list is not a recommendation.

Grow natives easily with Ezina

How it works

We provide the tools you need to succeed.

The Ezina app identifying a plant: a live camera view framing pink coneflowers, with Plant, Disease/Insect, and Both scan modes.
010.1Identify

Add a plant

Snap a photo or type the name. The app pulls 4,000+ species from peer-reviewed horticulture data and starts a care plan tailored to your zone, the local weather, and the time of year.

The Ezina app’s care screen: water needs showing status Okay, last watered 12 days ago, a suggested volume, and a treatment section.
010.2Care

Get a care plan

A schedule built from local rain, temperature, and sun, not a fixed weekly cadence. You get a single notification when a plant actually needs water. Easily add treatments for diseases and pests.

The Ezina Dig planner: a starting-plan site map with suggested garden beds you can draw with your finger.
010.3Plan

Explore new options

Our garden planner Dig helps you understand what works best for your location and makes suggestions based off your long term goals.

Add a plant

Snap a photo or type the name. The app pulls 4,000+ species from peer-reviewed horticulture data and starts a care plan tailored to your zone, the local weather, and the time of year.

Compiled from peer-reviewed research, USDA documentation,
and direct scientific observation across the 48 contiguous states.