Iowa Code
Chapter 317 - WEEDS
Section 317.1A - Noxious weeds.

317.1A Noxious weeds.
1. The following weeds are hereby declared to be noxious and shall be divided into two classes, as follows:
a. Primary noxious weeds, which shall include:
(1) Quack grass (Elymus repens).
(2) Perennial sow thistle (Sonchus arvensis).
(3) Canada thistle (Cirsium arvense).
(4) Bull thistle (Cirsium vulgare).
(5) European morning glory or field bindweed (Convolvulus arvensis).
(6) Horse nettle (Solanum carolinense).
(7) Leafy spurge (Euphorbia esula).
(8) Perennial pepper-grass (Cardaria draba).
(9) Russian knapweed (Acroptilon repens).
(10) Buckthorn (Rhamnus spp., not to include Frangula alnus, syn. Rhamnus frangula).
(11) All other species of thistles belonging in the genera of Cirsium and Carduus.
(12) Palmer amaranth (Amaranthus palmeri).
b. Secondary noxious weeds, which shall include:
(1) Butterprint (Abutilon theophrasti) annual.
(2) Cocklebur (Xanthium strumarium) annual.
(3) Wild mustard (Sinapis arvensis) annual.
(4) Wild carrot (Daucus carota) biennial.
(5) Buckhorn (Plantago lanceolata) perennial.
(6) Sheep sorrel (Rumex acetosella) perennial.
(7) Sour dock (Rumex crispus) perennial.
(8) Smooth dock (Rumex altissimus) perennial.
(9) Poison hemlock (Conium maculatum).
(10) Multiflora rose (Rosa multiflora).
(11) Wild sunflower (wild strain of Helianthus annuus L.) annual.
(12) Puncture vine (Tribulus terrestris) annual.
(13) Teasel (Dipsacus spp.) biennial.
(14) Shattercane (Sorghum bicolor) annual.
2. a. The multiflora rose (Rosa multiflora) shall not be considered a secondary noxious weed when cultivated for or used as understock for cultivated roses or as ornamental shrubs in gardens, or in any county whose board of supervisors has by resolution declared it not to be a noxious weed.
b. Shattercane (Sorghum bicolor) shall not be considered a secondary noxious weed when cultivated or in any county whose board of supervisors has by resolution declared it not to be a noxious weed.
3. A plant is also declared to be a noxious weed as provided in rules adopted by the department pursuant to chapter 17A. The department’s determination shall be based on a finding that the plant is competitive, persistent, or pernicious, and may directly or indirectly injure or cause damage to crops, other useful plants, livestock, or poultry; irrigation, land, public roads, fish or wildlife resources; or the public health.
[S13, §1565-b; C24, 27, 31, 35, §4818; C39, §4829.01; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §317.1]
85 Acts, ch 171, §1; 2000 Acts, ch 1154, §20
C2001, §317.1A
2010 Acts, ch 1061, §108; 2011 Acts, ch 34, §79; 2017 Acts, ch 101, §2; 2018 Acts, ch 1047, §2
Referred to in §317.1C, 716.14
Noxious weed seed defined, see §199.1

Structure Iowa Code

Iowa Code

Title VIII - TRANSPORTATION

Chapter 317 - WEEDS

Section 317.1 - Definitions.

Section 317.1A - Noxious weeds.

Section 317.1B - State weed commissioner.

Section 317.1C - Department — powers and duties.

Section 317.1D - Exemption — Iowa hemp Act.

Section 317.2 - State botanist.

Section 317.3 - Weed commissioner — standards for noxious weed control.

Section 317.4 - Direction and control.

Section 317.5 - Weeds in abandoned cemeteries.

Section 317.6 - Entering land to destroy weeds — notice.

Section 317.7 - Report to board.

Section 317.8 - Duty of secretary of agriculture or secretary’s designee.

Section 317.9 - Duty of board to enforce.

Section 317.10 - Duty of owner or tenant.

Section 317.11 - Weeds on roads — harvesting of grass.

Section 317.12 - Weeds on railroad or public lands and gravel pits.

Section 317.13 - Program of control or eradication.

Section 317.14 - Notice of program.

Section 317.14A - Special requirements for the control or elimination of Palmer amaranth on conservation reserve program land.

Section 317.15 - Loss or damage to crops.

Section 317.16 - Failure to comply.

Section 317.17 - Additional noxious weeds.

Section 317.18 - Order for weed control or eradication on roads.

Section 317.19 - Road clearing appropriation.

Section 317.20 - Equipment and materials — use on private property.

Section 317.21 - Cost of weed destruction.

Section 317.22 - Duty of highway maintenance personnel.

Section 317.23 - Duty of county attorney.

Section 317.24 - Punishment of officer.

Section 317.25 - Invasive plants prohibited — exception — penalty.

Section 317.26 - Alternative remediation practices.