WSR 22-19-100
PROPOSED RULES
NOXIOUS WEED
CONTROL BOARD
[Filed September 21, 2022, 10:44 a.m.]
Original Notice.
Preproposal statement of inquiry was filed as WSR 21-12-035.
Title of Rule and Other Identifying Information: Chapter 16-750 WAC, State noxious weed list and schedule of monetary penalties. The Washington state noxious weed control board (WSNWCB) is proposing to amend the state noxious weed list for 2023.
Hearing Location(s): On November 1, 2022, at 1:00 p.m., WebEx, phone 1-404-410-4537, toll free 1-877-312-2531, Meeting Access Code 2594 342 2821. Due to the mandated social distancing requirements in place during the current COVID-19 pandemic, the public hearings will be held solely over video and teleconference.
Date of Intended Adoption: December 1, 2022.
Submit Written Comments to: Mary Fee, WSNWCB, P.O. Box 42560, Olympia, WA 98504-2560, email mfee@agr.wa.gov or noxiousweeds@agr.wa.gov, fax 360-902-2053, by October 31, 2022.
Assistance for Persons with Disabilities: Contact Deanna Painter, phone 360-902-2061, TTY 800-833-6388, email dpainter@agr.wa.gov, by October 31, 2022.
Purpose of the Proposal and Its Anticipated Effects, Including Any Changes in Existing Rules: The Washington state noxious weed list provides the basis for noxious weed control efforts for county noxious weed control boards and other entities. It also provides guidelines for WSNWCB. This proposal makes a few amendments to WAC 16-750-003, 16-750-011, and 16-750-015. Specifically, WSNWCB is proposing:
1. WAC 16-750-003 addition of the definition of feral. Feral means where a plant species has escaped a managed landscape or is growing without human management or design. "Feral" does not include any plants grown for agricultural or commercial purposes.
2. WAC 16-750-011 proposed Class B designation changes:
•Common tansy, Tanacetum vulgare, undesignate in Lewis County.
•Spotted knapweed, Cenaurea stoebe, designate in Douglas County.
•Shiny geranium, Geranium lucidum, undesignate in King County.
•Scotch Thistle, Onopordum acanthium, designate in Douglas County.
3. WAC 16-750-015:
•Feral holly, Ilex aquifolium: Addition as a Class C noxious weed species not including holly found in managed landscapes or where commercially or agriculturally grown.
Reasons Supporting Proposal: Under RCW 17.10.080, WSNWCB is charged with updating the state noxious weed list on an annual basis to ensure it accurately reflects the noxious weed control priorities and noxious weed distribution. Under RCW 17.10.070, WSNWCB is charged with adopting, amending, or repealing rules, pursuant to the Administrative Procedure Act, chapter 34.05 RCW, as may be necessary to carry out the duties and authorities assigned to WSNWCB by this chapter.
The proposed addition of feral holly, Ilex Aquifolium, as a Class C noxious weed species is intended to keep them from spreading from current feral infestations to new locations within Washington state. Noxious weeds are very invasive species that, when left uncontrolled, outcompete agricultural crops and native species. Noxious weed infestations negatively impact both terrestrial and aquatic habitats as well as farming and grazing lands. Feral holly is known to invade riparian and sensitive areas as well as grow in forested understories.
The designation changes of common tansy, spotted knapweed, shiny geranium, and Scotch thistle are intended to better match the infestation distribution in those counties. Class B noxious weeds are generally designated where they are absent, limited, or pose a serious threat to health, agriculture, or natural areas so the economic impact is not unreasonable.
Statutory Authority for Adoption: RCW 17.10.070, 17.10.080.
Statute Being Implemented: Chapter 17.10 RCW.
Rule is not necessitated by federal law, federal or state court decision.
Name of Proponent: WSNWCB, governmental.
Name of Agency Personnel Responsible for Drafting, Implementation, and Enforcement: Mary Fee, 1111 Washington Street S.E., Olympia, WA 98504, 360-561-4428.
A school district fiscal impact statement is not required under RCW 28A.305.135.
A cost-benefit analysis is not required under RCW 34.05.328. WSNWCB is not one of the agencies listed in this section.
The proposed rule does not impose more-than-minor costs on businesses. Following is a summary of the agency's analysis showing how costs were calculated. Approximately 132 businesses responded to an online survey emailed to licensed nurseries and agricultural industry associations. Seventeen businesses (12.8 percent) reported selling Ilex aquifolium, feral populations of this species are proposed for listing as a Class C noxious weed. Two businesses indicated the listing would impact their business due to loss of sales, revenue, or jobs, but only minimally. Both of these businesses plus an additional six other businesses reported that they provide alternatives to holly for purchase. Additionally, the noxious weed list is separate from the Washington state department of agriculture (WSDA) quarantine lists (WAC 16-752-300, 16-752-400, 16-752-500, and 16-752-600), which prohibit the sale and transport of particular species, so the proposed listing of feral holly would not prohibit the production or sale of English holly grown for foliage or for horticultural use. One business noted that if not listed, they would incur an economic loss due to feral holly invasion that is not being controlled.
Approximately 104 (96.3 percent) respondents indicated that the proposed designation change for common tansy would not cost their small business any loss in revenue or jobs. Two were unsure.
Approximately 102 (95.33 percent) respondents indicated that the proposed designation change for shiny geranium would not cost their small business any loss in revenue or jobs. Three were unsure.
Approximately 106 (98.15 percent) respondents indicated that the proposed designation change for shiny geranium would not cost their small business any loss in revenue or jobs. One was unsure.
Approximately 103 (95.37 percent) respondents indicated that the proposed designation change for shiny geranium would not cost their small business any loss in revenue or jobs. Three were unsure.
An analysis of the direct economic effects of the proposed rule amendments indicates that costs to businesses would be negligible or none at all. The proposed Class C addition of feral holly will not require control at the state level. The majority of the county noxious weed boards polled indicated either an interest in educating the public, or taking no action at all about feral holly. Therefore, there will be little to no cost associated with compliance with this rule making concerning feral holly. However, the Northwest Holly Growers Association has concerns that the listing of feral holly as a Class C noxious weed species may impact their sales. The noxious weed list is separate from the WSDA quarantine lists (WAC 16-752-300, 16-752-400, 16-752-500, and 16-752-600), which prohibit the sale and transport of particular species, so the proposed listing of feral holly would not prohibit the production or sale of English holly grown for foliage or for horticultural use. One business from the survey reported that they did not know if they sold Ilex aquifolium, and did indicate a $5,000 estimated loss. The basis for this estimated loss was unclear. This ruling will not limit the sale or production of holly and should not directly impact this business.
Two Class B noxious weed designation changes are being designated for control in counties where they are either absent or limited in distribution; businesses in these counties should not be faced with more-than-minor costs to control those noxious weeds. Limited distribution is typically defined as less than 100 infested acres within a county. The other two designation changes are less restrictive and should not pose any costs associated with these changes.
Based upon the above analysis, WSNWCB concludes that direct minor costs, if any, imposed would affect less than 10 percent of businesses and would not exceed $100 in cost to comply as a direct result of these proposed rule-making changes, nor would any of these amendments to the noxious weed list directly cause the creation of or loss of any jobs. WSNWCB concludes that the proposed rule changes will not impose more-than-minor cost on businesses in an industry. Therefore, a formal small business economic statement is not required.
September 21, 2022
Mary Fee
Executive Secretary
OTS-4100.1
AMENDATORY SECTION(Amending WSR 10-03-046, filed 1/14/10, effective 2/14/10)
WAC 16-750-003Definitions.
(1) The definitions in this section shall apply throughout this chapter, unless the context plainly requires otherwise:
(a) "Action" means the transaction of the official business of the Washington state noxious weed control board including, but not limited to, receipt of public testimony, deliberations, discussions, considerations, reviews, and final actions.
(b) "Board" means the Washington state noxious weed control board, or a duly authorized representative.
(c) "Director" means the director of the department of agriculture, or the director's appointed representative.
(d) "Executive secretary" means the executive secretary of the Washington state noxious weed control board.
(e) "Feral" means where a plant species has escaped a managed landscape or is growing without human management or design. "Feral" does not include any plants grown for agricultural or commercial purposes.
(f) "Department" means the department of agriculture of this state.
(((f)))(g) "Final action" means a collective positive or negative decision, or an actual vote by a majority of board members when sitting as a body or entity, upon a motion, proposal, resolution, or order.
(((g)))(h) "Meeting" means meetings at which action is taken.
(((h)))(i) "Regular meetings" means recurring meetings held in accordance with a periodic schedule in compliance with applicable statute or rule.
(2) The definitions in this subsection apply throughout this chapter, chapter 17.10 RCW, and any rules adopted thereunder unless the context plainly requires otherwise:
(a) "Control" of noxious weeds means to prevent all seed production and to prevent the dispersal of all propagative parts capable of forming new plants.
(b) "Contain" means to confine a noxious weed and its propagules to an identified area of infestation.
(c) "Eradicate" means to eliminate a noxious weed within an area of infestation.
(d) "Prevent the spread of noxious weeds" means to contain noxious weeds.
(e) Class A noxious weeds are those noxious weeds not native to the state that are of limited distribution or are unrecorded in the state and that pose a serious threat to the state.
(f) Class B noxious weeds are those noxious weeds not native to the state that are of limited distribution or are unrecorded in a region of the state and that pose a serious threat to that region.
(g) "Class B designate" means those Class B noxious weeds whose populations in a region or area are such that all seed production can be prevented within a calendar year.
(h) Class C are any other noxious weeds.
(3) Any county noxious weed control board may enhance the clarity of any definition contained in subsection (2) of this section, making that definition more specific, but shall not change its general meaning.
AMENDATORY SECTION(Amending WSR 22-01-040, filed 12/7/21, effective 1/1/22)
WAC 16-750-011State noxious weed list—Class B noxious weeds.
 
Name
 
Will be a "Class B designate" in all
lands lying within:
(1)
blueweed, Echium vulgare
(a)
regions 1, 2, 3, 4, 6
 
 
(b)
region 5, except Spokane County
(2)
Brazilian elodea, Egeria densa
(a)
region 1, except Grays Harbor County
(b)
region 2, except Kitsap County
 
 
(c)
King County of region 2, except lakes Dolloff, Fenwick, Union, Washington, and Sammamish, and the Sammamish River
 
 
(d)
region 3, except Wahkiakum County
 
 
(e)
regions 4, 5, and 6
(3)
bugloss, annual, Lycopsis arvensis
(a)
regions 1, 2, 3, 4, and 6
(b)
region 5, except Spokane County
(4)
bugloss, common, Anchusa officinalis
(a)
regions 1, 2, 3, and 6
(b)
All of region 4 except those areas lying within the Entiat River Valley between the Columbia River confluence and Stormy Creek in Chelan County
 
 
(c)
region 5, except Spokane County
(5)
butterfly bush, Buddleja davidii
(a)
Grays Harbor County of region 1
 
 
(b)
San Juan County of region 2
 
 
(c)
Cowlitz County of region 3
(6)
camelthorn, Alhagi maurorum
(a)
regions 1, 2, 3, 4, 5, and 6
(7)
common fennel, Foeniculum vulgare (except bulbing fennel, F. vulgare var. azoricum)
(a)
region 1, except Jefferson County
 
(b)
region 2, except King and Skagit counties
 
 
(c)
region 3, except Clark County
 
 
(d)
regions 4, 5, and 6
(8)
common reed, Phragmites australis (nonnative genotypes only)
(a)
regions 1, 2, 3, and 4
(b)
region 5, except Grant County
(c)
Asotin, Columbia, and Garfield counties of region 6
(9)
common tansy, Tanacetum vulgare
(a)
Clallam County of region 1
(b)
Kitsap and San Juan counties of region 2
 
 
(c)
Cowlitz ((and Lewis counties))County of region 3
 
 
(d)
Adams and Lincoln counties of region 5
(10)
Dalmatian toadflax, Linaria dalmatica ssp. dalmatica
(a)
regions 1, 2, and 3
(b)
Adams, Kittitas, and Lincoln counties of region 5
 
 
(c)
Benton, Franklin, and Walla Walla counties of region 6
(11)
Eurasian watermilfoil, Myriophyllum spicatum
(a)
region 1, except Pacific County
(b)
Island, Kitsap, and San Juan counties of region 2
 
 
(c)
Clark and Cowlitz counties of region 3
 
 
(d)
Chelan and Okanogan counties, and all lakes with public boat launches except Fan Lake in Pend Oreille County of region 4
 
 
(e)
Adams, Kittitas, Lincoln, and Whitman counties of region 5
 
 
(f)
Asotin, Columbia, and Garfield counties of region 6
(12)
European coltsfoot, Tussilago farfara
(a)
regions 1, 2, 3, 4, 5, and 6
(13)
fanwort, Cabomba caroliniana
(a)
regions 1, 2, 4, 5, and 6
(b)
region 3, except Cowlitz County
(14)
gorse, Ulex europaeus
(a)
region 1, except Grays Harbor and Pacific counties
 
 
(b)
regions 2, 3, 4, 5, 6
(15)
grass-leaved arrowhead, Sagittaria graminea
(a)
region 1
(b)
region 2, except Snohomish County
 
 
(c)
regions 3, 4, 5, and 6
(16)
hairy willow-herb, Epilobium hirsutum
(a)
regions 1, 3, and 4
(b)
region 2, except Thurston and Whatcom counties
 
 
(c)
region 5, except Klickitat County
 
 
(d)
region 6, except Benton and Franklin counties
(17)
hanging sedge, Carex pendula, Carex pendula subsp. pendula and Carex pendula subsp. agastachys
(a)
regions 1, 3, 4, 5, and 6
(b)
region 2, except for King County
(18)
hawkweed oxtongue, Picris hieracioides
(a)
regions 1, 2, 4, 5, and 6
(b)
region 3, except Skamania County
(19)
hawkweed, orange, Hieracium aurantiacum
(a)
regions 1, 3, and 6
(b)
region 2, except Whatcom County
 
 
(c)
region 4, except Pend Oreille and Stevens counties
 
 
(d)
region 5, except Kittitas and Spokane counties
(20)
hawkweeds: All nonnative species and hybrids of the Meadow subgenus (Pilosella), including, but not limited to, mouseear (Hieracium pilosella), pale (H. lactucella), queen-devil (H. glomeratum), tall (H. piloselloides), whiplash (H. flagellare), yellow (H. caespitosum), and yellow-devil (H. x floribundum)
(a)
region 1
 
(b)
region 2, except Thurston County
 
(c)
region 3, except Cowlitz County
 
(d)
region 4, except Pend Oreille and Stevens counties
 
(e)
region 5, except Klickitat and Spokane counties
 
(f)
region 6
(21)
hawkweeds: All nonnative species and hybrids of the Wall subgenus (Hieracium), including, but not limited to, common (Hieracium lachenalii), European (H. sabaudum), polar (H. atratum), smooth (H. laevigatum), spotted (H. maculatum), and wall (H. murorum)
(a)
regions 1, 3, 5, and 6
 
(b)
region 2, except King, Skagit, Snohomish, and Whatcom counties
 
(c)
region 4, except Stevens County
(22)
herb-Robert, Geranium robertianum
(a)
regions 4, 5, and 6
(23)
hoary alyssum, Berteroa incana
(a)
regions 1, 2, 3, and 6
(b)
region 4, except Pend Oreille and Ferry counties
 
 
(c)
region 5, except Klickitat County
(24)
houndstongue, Cynoglossum officinale
(a)
regions 1, 2, and 3
(b)
Chelan and Douglas counties of region 4
 
 
(c)
Yakima, Grant and Adams counties of region 5
 
 
(d)
Benton and Franklin counties of region 6
(25)
indigobush, Amorpha fruticosa
(a)
regions 1, 2, and 4
(b)
Lewis County of region 3
 
 
(c)
region 5, except Klickitat County
(26)
knapweed, black, Centaurea nigra
(a)
regions 1, 2, 3, 4, 5, and 6
(27)
knapweed, brown, Centaurea jacea
(a)
regions 1, 2, 3, 4, 5, and 6
(28)
knapweed, diffuse, Centaurea diffusa
(a)
region 1
(b)
region 2
 
 
(c)
region 3, except Cowlitz County
 
 
(d)
Adams County of region 5
(29)
knapweed, meadow, Centaureax gerstlaueri
(a)
regions 1 and 4
(b)
region 2, except Whatcom County
 
 
(c)
Thurston County of region 2, except below the ordinary high-water mark of the Nisqually River
 
 
(d)
Lewis and Wahkiakum counties of region 3
 
 
(e)
region 5, except Kittitas and Klickitat counties
 
 
(f)
region 6, except Franklin and Walla Walla counties
(30)
knapweed, Russian, Rhaponticum repens
(a)
regions 1, 2, and 3
(b)
Ferry and Pend Oreille counties of region 4
 
 
(c)
Lincoln, Spokane, and Whitman counties of region 5
 
 
(d)
Adams County of region 5, except for the area west of Highway 17 and north of Highway 26
 
 
(e)
Asotin and Garfield counties of region 6
(31)
knapweed, spotted, Centaurea stoebe
(a)
region 1, except Grays Harbor
(b)
region 2, except Whatcom County
 
 
(c)
Clark, Lewis, and Wahkiakum counties of region 3
 
 
(d)
Ferry ((County))and Douglas counties of region 4
 
 
(e)
Adams, Grant and Yakima counties of region 5
 
 
(f)
region 6, except Columbia and Walla Walla counties
(32)
knotweed, Bohemian, Fallopia x bohemica
(a)
Island and San Juan counties of region 2
(b)
Skamania County of region 3
 
 
(c)
region 4, 5, and 6
(33)
knotweed, giant, Fallopia sachalinensis
(a)
region 2, except King, Pierce, and Snohomish counties
(b)
region 3, except Cowlitz and Lewis counties
(c)
regions 4, 5, and 6
(34)
knotweed, Himalayan, Persicaria wallichii
(a)
region 1, except Pacific County
(b)
region 2, except King and Pierce counties
 
 
(c)
region 3, except Wahkiakum County
 
 
(d)
region 4, 5, and 6
(35)
knotweed, Japanese, Fallopia japonica
(a)
Island, San Juan, and Whatcom counties of region 2
(b)
Skamania County of region 3
 
 
(c)
region 4, except Okanogan County
 
 
(d)
region 5, except Spokane County
 
 
(e)
region 6
(36)
kochia, Bassia scoparia
(a)
regions 1, 2, and 3
(b)
Stevens and Pend Oreille counties of region 4
 
 
(c)
Adams County of region 5
(37)
lesser celandine, Ficaria verna
(a)
region 1, 3, 4, 5, and 6
 
 
(b)
region 2, except King and Whatcom counties
(38)
loosestrife, garden, Lysimachia vulgaris
(a)
regions 1, 2, 3, 4, 5, 6
(39)
loosestrife, purple, Lythrum salicaria
(a)
Clallam, Jefferson, and Mason counties of region 1
(b)
region 2, except Kitsap, Skagit, and Snohomish counties
 
 
(c)
Clark, Lewis, and Skamania counties of region 3
 
 
(d)
region 4, except Douglas County
 
 
(e)
region 5, except Grant and Spokane counties
 
 
(f)
region 6, except Asotin and Franklin counties
(40)
loosestrife, wand, Lythrum virgatum
(a)
Clallam, Jefferson, and Mason counties of region 1
(b)
region 2, except Kitsap, Skagit, and Snohomish counties
 
 
(c)
Clark, Lewis, and Skamania counties of region 3
 
 
(d)
region 4, except Douglas County
 
 
(e)
region 5, except Grant and Spokane counties
 
 
(f)
region 6, except Asotin and Franklin counties
(41)
Malta starthistle, Centaurea melitensis
(a)
regions 1, 2, and 3
(b)
region 4, except T36 R38 in the area contained within Hwy 395/Hwy 20, Pingston Creek Road, and Highland Loop Road in Stevens County
 
 
(c)
region 5, except Klickitat and Whitman counties
(42)
parrotfeather, Myriophyllum aquaticum
(a)
region 1, except Pacific County
(b)
regions 2, 4, 5, and 6
 
 
(c)
Clark and Skamania counties of region 3
(43)
perennial pepperweed, Lepidium latifolium
(a)
regions 1, 2, and 4
(b)
region 3, except Clark and Cowlitz counties
 
 
(c)
Kittitas, Lincoln and Spokane counties of region 5
 
 
(d)
Columbia and Garfield counties of region 6
(44)
poison hemlock, Conium maculatum
(a)
Clallam, Mason, and Pacific counties of region 1
(b)
region 2, except King, Skagit, and Whatcom counties
 
 
(c)
Clark and Skamania counties of region 3
 
 
(d)
Chelan, Douglas, and Pend Oreille counties of region 4
 
 
(e)
Grant, Kittitas and Lincoln counties of region 5
(45)
policeman's helmet, Impatiens glandulifera
(a)
region 1, 3, 4, 5, and 6
(b)
region 2, except Thurston and Whatcom counties
(46)
puncturevine, Tribulus terrestris
(a)
regions 1, 2, and 3
(b)
Ferry, Pend Oreille, and Stevens counties of region 4
 
 
(c)
region 5, except Grant, Klickitat, and Yakima counties
(47)
Ravenna grass, Tripidium ravennae
(a)
Cowlitz County of region 3
(b)
region 4
 
 
(c)
region 5, except Yakima County
 
 
(d)
region 6, except Benton County
(48)
rough chervil, Chaerophyllum temulum
(a)
regions 1, 3, 4, 5, and 6
(b)
region 2, except for King County
(49)
rush skeletonweed, Chondrilla juncea
(a)
regions 1, 2, and 3
(b)
region 4, except all areas of Stevens County south of Township 29
 
 
(c)
Kittitas and Yakima counties of region 5, and Adams County, except those areas lying east of Sage Road, the western border of Range 36
 
 
(d)
Asotin County of region 6
(50)
saltcedar, Tamarix ramosissima (unless intentionally planted prior to 2004)
(a)
regions 1, 3, 4, 5, and 6
(b)
region 2, except King and Thurston counties
(51)
Scotch broom, Cytisus scoparius
(a)
regions 4 and 6
(b)
region 5, except Klickitat County
(52)
shiny geranium, Geranium lucidum
(a)
regions 1, 4, 5, and 6
(b)
region((s)) 2, except King and Thurston ((County))counties
 
 
(c)
region 3, except Clark County
(53)
spurge flax, Thymelaea passerina
(a)
region 4, except Okanogan County
(b)
regions 5 and 6
(54)
spurge laurel, Daphne laureola
(a)
region 1, except Clallam and Jefferson counties
(b)
region 2, except King, Kitsap, and Pierce counties
 
 
(c)
region 3
 
 
(d)
regions 4, 5, and 6
(55)
spurge, leafy, Euphorbia virgata
(a)
regions 1, 2, 3, and 4
(b)
region 5, except Spokane County
 
 
(c)
region 6, except Columbia County
(56)
spurge, myrtle, Euphorbia myrsinites
(a)
region 1, except Clallam and Jefferson counties
(b)
region 2, except King, Kitsap, Pierce, and Whatcom counties
 
 
(c)
regions 3, 5, and 6
 
 
(d)
region 4, except Okanogan County
(57)
sulfur cinquefoil, Potentilla recta
(a)
region 1
(b)
region 2, except Pierce and Thurston counties
 
 
(c)
region 3, except Lewis and Skamania counties
 
 
(d)
Adams, Grant, Lincoln, and Whitman counties of region 5
 
 
(e)
region 6, except Asotin County
(58)
tansy ragwort, Jacobaea vulgaris
(a)
Island and San Juan counties of region 2
(b)
Clark and Wahkiakum counties of region 3
 
 
(c)
regions 4, 5, and 6
(59)
thistle, musk, Carduus nutans
(a)
regions 1, 2, 3, and 6
(b)
region 4, except Douglas and Ferry counties
 
 
(c)
region 5, except Kittitas County
(60)
thistle, plumeless, Carduus acanthoides
(a)
regions 1, 2, 3, 5, 6
(b)
region 4, except those areas north of State Highway 20 in Stevens County
(61)
thistle, Scotch, Onopordum acanthium
(a)
regions 1, 2, ((and)) 3, and 4
(b)
((region 4, except Douglas County
 
 
(c)))
region 5, except Spokane and Whitman counties
(62)
velvetleaf, Abutilon theophrasti
(a)
regions 1, 2, 3, 4, and 6
(b)
region 5, except Yakima County
(63)
water primrose, Ludwigia hexapetala
(a)
regions 1, 2, 3, 4, 5, and 6
(64)
white bryony, Bryonia alba
(a)
regions 1, 2, 3, and 4
(b)
region 5, except Whitman County
 
 
(c)
Benton and Garfield counties of region 6
(65)
Wild basil/basil savory, Clinopodium vulgare
(a)
regions 1, 2, 4, 5, and 6
(b)
region 3, except for Skamania County
(66)
wild chervil, Anthriscus sylvestris
(a)
regions 1, 3, 4, and 6
(b)
region 2, except Whatcom County
 
 
(c)
region 5, except Whitman County
(67)
yellow archangel, Lamiastrum galeobdolon
(a)
Clallam County of region 1
(b)
Island, San Juan, Skagit, and Whatcom counties of region 2
 
 
(c)
Cowlitz, Skamania, and Wahkiakum counties of region 3
 
 
(d)
regions 4, 5, and 6
(68)
yellow floating heart, Nymphoides peltata
(a)
regions 1, 2, 3, and 6
(b)
region 4, except Stevens County
 
 
(c)
region 5, except Spokane County
(69)
yellow nutsedge, Cyperus esculentus
(a)
regions 1 and 4
(b)
region 2, except Skagit and Thurston counties
 
 
(c)
region 3, except Clark County
 
 
(d)
region 5, except Klickitat and Yakima counties
 
 
(e)
region 6, except Franklin and Walla Walla counties
(70)
yellow starthistle, Centaurea solstitialis
(a)
regions 1, 2, and 3
(b)
region 4, except T36 R38 in the area contained within Hwy 395/Hwy 20, Pingston Creek Road, and Highland Loop Road in Stevens County
 
 
(c)
region 5, except Klickitat, and Whitman counties
AMENDATORY SECTION(Amending WSR 22-01-040, filed 12/7/21, effective 1/1/22)
WAC 16-750-015State noxious weed list—Class C noxious weeds.
Common Name
Scientific Name
absinth wormwood
Artemisia absinthium
Austrian fieldcress
Rorippa austriaca
babysbreath
Gypsophila paniculata
black henbane
Hyoscyamus niger
blackberry, evergreen
Rubus laciniatus
blackberry, Himalayan
Rubus bifrons
blackgrass
Alopecurus myosuroides
buffalobur
Solanum rostratum
cereal rye
Secale cereale
common barberry
Berberis vulgaris
common catsear
Hypochaeris radicata
common groundsel
Senecio vulgaris
common St. Johnswort
Hypericum perforatum
common teasel
Dipsacus fullonum
curly-leaf pondweed
Potamogeton crispus
English hawthorn
Crataegus monogyna
English ivy 4 cultivars only:
Hedera hibernica 'Hibernica'
 
Hedera helix 'Baltica'
 
Hedera helix 'Pittsburgh'
 
Hedera helix 'Star'
Eurasian watermilfoil hybrid
Myriophyllum spicatum x M. sibiricum
Feral holly (not including holly found in managed landscapes or where commercially or agriculturally grown)
Ilex aquifolium (feral populations)
field bindweed
Convolvulus arvensis
fragrant water lily
Nymphaea odorata
green alkanet
Pentaglottis sempervirens
hairy whitetop
Lepidium appelianum
hoary cress
Lepidium draba
Italian arum
Arum italicum
Japanese eelgrass
Nanozostera japonica
jointed goatgrass
Aegilops cylindrica
jubata grass
Cortaderia jubata
lawnweed
Soliva sessilis
longspine sandbur
Cenchrus longispinus
Medusahead
Taeniatherum caput-medusae
nonnative cattail species and hybrids
Including, but not limited to, Typha angustifolia, T. domingensis and T. x glauca
old man's beard
Clematis vitalba
oxeye daisy
Leucanthemum vulgare
pampas grass
Cortaderia selloana
perennial sowthistle
Sonchus arvensis ssp. arvensis
reed canarygrass
Phalaris arundinacea
Russian olive
Elaeagnus angustifolia
scentless mayweed
Tripleurospermum inodorum
smoothseed alfalfa dodder
Cuscuta approximata
spikeweed
Centromadia pungens
spiny cocklebur
Xanthium spinosum
spotted jewelweed
Impatiens capensis
Swainsonpea
Sphaerophysa salsula
thistle, bull
Cirsium vulgare
thistle, Canada
Cirsium arvense
tree-of-heaven
Ailanthus altissima
ventenata
Ventenata dubia
white cockle
Silene latifolia
wild carrot (except subs. sativus where grown commercially or for food)
Daucus carota
yellow flag iris
Iris pseudacorus
yellow toadflax
Linaria vulgaris