WSR 12-20-082

PROPOSED RULES

NOXIOUS WEED

CONTROL BOARD

[ Filed October 3, 2012, 11:17 a.m. ]

Original Notice.

Preproposal statement of inquiry was filed as WSR 12-16-013.

Title of Rule and Other Identifying Information: Chapter 16-750 WAC, State noxious weed list and schedule of monetary penalties. The board is proposing to amend the state noxious weed list for 2013.

Hearing Location(s): WSDA, Yakima Building, 21 North First Avenue, Yakima, WA 98902, on November 6, 2012, at 1:00 p.m.

Date of Intended Adoption: November 7, 2012.

Submit Written Comments to: Alison Halpern, P.O. Box 42560, Olympia, WA 98504-2560, e-mail ahalpern@agr.wa.gov, fax (360) 902-2094, by November 5, 2012.

Assistance for Persons with Disabilities: Contact Wendy DesCamp by October 30, 2012, TTY (800) 833-6388 or 711.

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 and district weed control boards and other entities. It also provides guidelines for the state noxious weed control board. This proposal makes several amendments to WAC 16-750-004 through 16-750-015.

Reasons Supporting Proposal: The Washington state noxious weed control board (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.

Statutory Authority for Adoption: Chapter 17.10 RCW.

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: Alison Halpern, 1111 Washington Street S.E., Olympia, WA 98504, (360) 902-2053.

No small business economic impact statement has been prepared under chapter 19.85 RCW. RCW 19.85.030 (1)(a) requires that an agency prepare a small business economic impact statement (SBEIS) for proposed rules that impose more than a minor cost on businesses in an industry. An analysis of the direct economic effects of the proposed rule amendments indicates that costs to small businesses would be negligible or none at all. A copy of the analysis is shown below, and it can be obtained by contacting Alison Halpern, P.O. Box 42560, Olympia, WA 98504-2560.


AN ANALYSIS TO DETERMINE IF AN SBEIS IS REQUIRED FOR WSNWCB

PROPOSALS TO CHANGE THE NOXIOUS WEED LIST (RCW 17.10.080)



Rule Summary: RCW 17.10.080 authorizes the WSNWCB to adopt a state noxious weed list annually to make changes as deemed necessary and important to help reduce the threat and impact of noxious weeds in the state. These annual changes to the weed list are based on proposals received by the WSNWCB, and they are voted on in November following a public hearing. Possible changes to the weed list include but are not limited to: The addition of new species; deletion of species that have been eradicated or found to be less detrimental than originally predicted; changes in Class B areas designated for control; the change of noxious weed class of a species.

The current proposed changes to the 2013 noxious weed list include:


Add French broom, Genista monspessulana, as a Class A noxious weed.
Add tall hawkweed, Hieracium piloselloides, as a Class B noxious weed to be designated everywhere except Stevens and Pend Oreille counties.
Add common barberry, Berberis vulgaris, as a Class C noxious weed.
Add common teasel, Dipsacus fullonum, as a Class C noxious weed.
Amend current listing of Japanese eelgrass, Zostera japonica, to make it a Class C everywhere (rather than limiting to commercially managed shellfish beds only, as presently listed).
Change eleven Class B noxious weeds to Class C noxious weeds.
Amend WAC 16-750-004 Noxious weed region descriptions from the ten current regions to six regions.
Amending designations of sixty-one currently listed Class B noxious weeds to match new regions and updated distribution data.

Purpose of this Analysis: RCW 19.85.030 requires agencies to prepare an SBEIS if the proposed rule will impose more than minor costs on businesses in an industry. The purpose of this analysis is to determine if the proposed changes to the 2013 noxious weed list will impose "more than minor costs" on the businesses directly affected by these proposed changes, which would thereby require WSNWCB to prepare a formal SBEIS.

Nature of aforementioned noxious weed species in Washington:

Proposed addition of a Class A noxious weed: French broom, Genista monspessulana, is in the same family and looks a lot like our notoriously invasive noxious weed Scotch broom. Like Scotch broom, it is a tall, shrubby plant with green, ridged stems, small, three-parted leaves covered in fine hairs, and bright yellow, fragrant flowers. Unlike Scotch broom, it is not widespread in western Washington, which is why it has been proposed as a Class A noxious weed. Currently listed as a noxious weed in Oregon, California, and Hawaii, French broom spreads rapidly and displaces native vegetation. One shrub is capable of producing eight thousand seeds, which can survive at least five years. Climate change seems to be expanding its range. Once used as an ornamental plant, it does not appear to be sold through the horticultural industry anymore.

Proposed addition of a Class B noxious weed: Tall hawkweed, Hieracium piloselloides, has been proposed as a Class B noxious weed. Like our other nonnative hawkweed species, tall hawkweed has lance-shaped basal leaves and clusters of yellow flowers growing atop tall, hairy stems. Nonnative hawkweeds spread rapidly in pastures and rangelands, displacing native forbs and grasses that livestock and wildlife rely on for food. Tall hawkweed is currently a listed noxious weed in Oregon and Montana.

Proposed additions of Class C noxious weeds: Common teasel, Dipsacus fullonum, has been proposed as a Class C noxious weed. Although teasel is not new to the state - it was first recorded in Washington in 1923 - it appears to be spreading more rapidly in recent years. It thrives in disturbed areas such as roadsides, ditches, moist pasture areas, and vacant lots, but it is becoming increasingly problematic in quality pastureland and farmland, particularly in northwest Washington. Its seeds spread through soil and machinery, especially mowers. Seed crops are especially vulnerable to contamination by teasel seeds. Teasel is typically a biennial that grows up to six feet tall. It has prickly leaves and a very distinctive flowerhead, which is about four inches tall, oval-shaped, and consists of rows of small, purplish flowers. It has distinctive spike-like bracts curling up at the base. Dried teasel flowerheads are sometimes used in floral arrangements.

Common barberry, Berberis vulgaris, has been proposed as a Class C noxious weed. This shrubby species with bright yellow flowers was once commonly planted by homesteaders, as its thorny branches made effective hedgerows and fencing for livestock. It spreads by seeds and root sprouts. Common barberry is capable of naturalizing into rocky pastureland and disturbed habitat, but it is its role as an alternative host for stem rust that makes it a serious threat to cereal grain growers. Sexual reproduction of stem rust may occur on common barberry, which could potentially lead to new genetic more virulent and fungicide-resistant strains. Because it is a serious risk to wheat and barley growers, a federal eradication program had been implemented for decades in many northern states until funding ran out in 1981. Current law (WAC 16-472-030) still requires the destruction of common barberry plants in the wheat-producing parts of the state. A Class C listing would help with outreach efforts to educate about the importance of the removal of common barberry.

Proposed amendment of a currently listed Class C noxious weed: Japanese eelgrass, Zostera japonica, is an annual or perennial herbaceous plant that grows in intertidal marine waters. Shellfish growers have indicated that this nonnative species is invading once-bare mudflats and significantly reducing yield of shellfish, particularly hard-shell clams, and increasing costs to manage and maintain the shellfish beds. It reduces tidal water flow by up to forty percent, thereby potentially changing mudflat use by organisms. However, this species also appears to share similar structure and function to the important and protected native eelgrass, Zostera marina, although it occurs higher in the intertidal zone than the native species. It also appears to be a major food source for migrating shorebirds. Because Japanese eelgrass clearly appears to cause negative economic harm to the shellfish industry but has a complex of positive, negative, neutral, and unknown ecological impacts at this time, the state weed board listed it as a Class C noxious weed on commercially managed shellfish beds only in 2012. The WSNWCB received a proposal to recognize Japanese eelgrass as a Class C noxious weed everywhere instead of just on commercially managed shellfish beds for 2013.

Proposed change of Class B noxious weeds to Class C noxious weeds: In an effort to reduce the size of county noxious weed lists and give county noxious weed control boards the ability to prioritize noxious weeds of local concern, the WSNWCB is proposing to change eleven Class B noxious weeds to Class C noxious weeds. This would mean that these species would not be designated for required control by the WSNWCB; rather county noxious weed control boards would have the option of selecting them for control. The proposed species to be changed are:


Austrian fieldcress Rorippa austriaca
Blackgrass Alopecurus myosuroides
Common catsear Hypochaeris radicata
Polar hawkweed Hieracium atratum
Lawnweed Soliva sessilis
Lepyrodiclis Lepyrodiclis holosteoides
Longspine sandbur Cenchrus longispinus
Oxeye daisy Leucanthemum vulgare
Perennial sowthistle Sonchus arvensis ssp. arvensis
Swainsonpea Sphaerophysa salsula
Wild carrot (except where commercially grown) Daucus carota

Proposed amendment of noxious weed regions: WAC 16-750-004 divides the state into ten noxious weed regions based on eco-types. Class B noxious weeds are generally designated at this regional level. In accordance with RCW 34.05.220(5), which instructs that rules "be clearly and simply stated, so that it can be understood by those required to comply" and by Executive Order 05-03, which requires all agencies to adopt plain talk principles, the WSNWCB is proposing to reduce the number of weed regions from ten to six, using county boundaries rather than ecological regions to make the noxious weed regions and corresponding Class B designations simpler and easier to understand.

Proposed amendments of current Class B designations: Based on the new proposed noxious weed regions described in WAC 16-750-004 and using current distribution data and input from county noxious weed control boards, the WSNWCB is proposing to update designations of the remaining sixty-one Class B noxious weeds.

Affected Groups and the Cost of Compliance:

Proposed addition of a Class A noxious weed: A Class A noxious weed listing would require the eradication of French broom by all landowners; however, distribution of this nonnative invasive species is extremely limited at this time. The largest known infestation of French broom is on University of Washington property, and eradication efforts are already underway.

Proposed addition of a Class B noxious weed: A Class B noxious weed listing means that the WSNWCB would designate the species for control in areas where it is limited in distribution or altogether absent, and/or where its control is a priority. In designated areas, landowners would be required to control and prevent the spread of the Class B noxious weed. County noxious weed control boards would also have the option of selecting a Class B noxious weed for control where the state has not designated it. Tall hawkweed would be designated everywhere except for Stevens and Pend Oreille counties, which have many widespread and similar-looking hawkweed species whose control is not required.

Proposed additions of Class C noxious weeds: A Class C listing of a species means that the WSNWCB recognizes that the species meets the criteria of a noxious weed. Control of Class C noxious weeds is not mandated by the state, although county noxious weed control boards have the option of selecting Class C noxious weeds for mandatory control at the local level. Destruction of common barberry is already required under WAC 16-472-030 even if county noxious weed control boards do not select it for control. County weed boards could select common teasel for required control if it poses a threat to local agriculture or natural resources.

The horticultural industry: The group most likely to be impacted by the proposed Class A listing of French broom is the horticultural industry. However, it is unlikely that this listing will cause these businesses to lose sales or revenue. The noxious weed list is separate from the WSDA quarantine lists (WAC 16-752-300, 16-752-400, 16-752-500, 16-752-600), which prohibit the sale and transport of particular species, so the proposed noxious weed listing of French broom would not directly prohibit the sale of this plant. Nurseries selling French broom could potentially experience a decrease in sales of this particular species by consumers who voluntarily choose not to purchase ornamental species that are listed noxious weeds. To help assess the magnitude of this indirect economic impact, the state weed board developed a survey through SurveyMonkey (https://www.surveymonkey.com/s/6PKZL9L). A summary of the proposed French broom listing and link to the survey was e-mailed to the Washington Nursery and Landscape Association (WSNLA) on August 29, 2012, for inclusion in their upcoming newsletter. Hard-copies of the survey, handouts comparing different broom species, and self-addressed stamped envelopes were mailed to about forty licensed (by WSDA) nurseries on September 5, 2012. The sampling strategy employed was a systematic, random design so that at least one nursery per county was included in the survey. We did not receive any on-line survey responses, but eighteen hard-copy surveys were returned by mail between September 10 and October 3, 2012. One hundred percent of the respondents indicated that French broom was not stocked as part of their inventory. Therefore the proposed listing, if adopted, would not result in decreased revenue caused by reduced sales of French broom.

The WSNWCB has worked over the years to improve its relationship with the nursery industry. A member of the WSNLA has been appointed to the state weed board's noxious weed committee for over six years to represent the horticultural industry, and the state weed board has had a representative on the WSNLA's invasive plant task force since 2004. The cooperative efforts culminated in the creation of the publication GardenWise: Non-invasive Plants for Your Garden. This collaboration between the horticultural industry, state and county government, NGOs, and an institution of higher learning resulted in a publication that educates the consumer about invasive plants and promotes the sales of noninvasive alternatives, and it has been applauded by gardeners, nurseries, and noxious weed control programs alike. Overall, ten respondents (55.6 percent) indicated that efforts by the WSNWCB to promote noninvasive alternatives to invasive ornamental species were helpful to their businesses. Three respondents (16.6 percent) were not sure if these efforts were helpful to the nursery business, and another four respondents (22.2 percent) left this survey question blank. Only one (5.6 percent) respondent indicated that the WSNWCB efforts were not helpful.

The craft and floral industries: The groups most likely to be impacted by the proposed Class C listing of common teasel are the craft/hobby and floral industries, since dried flowerheads of common teasel are sometimes sold for and used in floral arrangements. However, it is unlikely that this listing will cause these businesses to lose sales or revenue. The noxious weed list is separate from the WSDA quarantine lists (WAC 16-752-300 through 16-752-600), which prohibit the sale and transport of particular species, so the proposed noxious weed listing of common teasel would not directly prohibit the sale of this plant. Craft stores and florists could potentially experience a decrease in sales of common teasel flowerheads by consumers who voluntarily choose not to purchase ornamental species that are listed noxious weeds. To help assess the magnitude of this indirect economic impact, the WSNWCB developed a survey and mailed hard-copies, along with cover letter, handout about common teasel, and a self-addressed stamped envelope. It was mailed on September 5, 2012, to a combination of forty small-business craft/hobby stores registered with the Washington department of revenue under NCIS Code 451120 (craft supply stores) and florist shops licensed through WSDA. The sampling strategy employed was a systematic, random design so that at least one craft store or florist per county was included in the survey. Seventeen surveys were returned between September 13 and September 28, 2012. Fifteen (88.2 percent) respondents indicated that they did not carry common teasel as part of their inventory and that the listing of this plant would not cause lost sales or revenue. One of these respondents took the time to elaborate: "I have been in the retail florist business for over 40 years. Back in my early years in the industry, teasel was quite popular to use in dry arrangements but it has drastically changed over the years. Teasel is considered an undesirable weed that is seldom ever used in dry type arrangements. There are so many nicer choices now. People are tired of that look of teasel. It will not have any effect on customers or the industry whatsoever." Two (11.8 percent) respondents indicated that they carried common teasel routinely. One small business provided an estimate of annual list sales or revenue of $50-$1,000; however, contact information was not provided and we were unable to request more information. The other small business that carries common teasel noted that they "only use seasonal, would not impact business." Therefore the proposed listing of common teasel as a Class C will not impose "more than minor costs" to the majority of small businesses that rely on this plant as part of their revenue.

The shellfish industry: The large majority of small businesses with Japanese eelgrass on their property are commercial shellfish growers. A small business economic impact survey of the shellfish growers was conducted last year, when Japanese eelgrass was proposed as a Class C noxious weed on commercially managed shellfish beds only. It was concluded that the listing would not cause these businesses to directly lose sales or revenue, nor will the listing itself directly result in the accrual of more than minor costs to the businesses, since control would not be mandated by the WSNWCB. It should be noted that the nominations to add Japanese eelgrass as a Class C noxious weed for 2012 came from several commercial shellfish growers. The original proposals were to add this species as a Class C noxious weed; the WSNWCB modified the proposed Class C listing to limit it to commercially managed shellfish beds only, based on all the information available. Many shellfish growers have expressed concern about this species and will likely control the intertidal plant voluntarily. A few shellfish growers have expressed concern about the public perception of having a listed noxious weed on their shellfish beds and the possible use of chemicals to control it. It should be noted that the WSNWCB supports integrated plant management (IPM) and does not mandate the use of specific control options. To summarize the survey results described in the 2011 document entitled "WSNWCB SBEIS analysis 2012":


Fifty percent of respondents (eleven of twenty-two) currently have Japanese eelgrass on their shellfish beds; forty-one percent of respondents (nine of twenty-two) do not have Japanese eelgrass on their shellfish beds, and about nine percent of respondents (two of twenty-two) were not sure if they have Japanese eelgrass on their shellfish beds.
About seventy-three percent of respondents (sixteen of twenty-two) indicated that the potential Class C listing of Japanese eelgrass on commercially managed shellfish beds would not cause their business to lose sales or revenue. Eighteen percent of respondents (four of twenty-two) were not sure if the listing would cause their business to lose sales or revenue. Nine percent (two respondents) indicated that the listing would likely cause them to lose sales or revenue.
Twenty-seven percent of respondents (six of twenty-two) indicated they anticipated controlling Japanese eelgrass, whether or not it is listed as a noxious weed, about thirty-two percent of respondents (seven of twenty-two) indicated they would not control Japanese eelgrass, and about forty-one percent of respondents (nine of twenty-two) were not sure at this time.
About fifty-five percent of respondents (twelve of twenty-two) anticipated some benefits to listing Japanese eelgrass as a Class C noxious weed on commercially managed shellfish beds, about fourteen percent of participants (three of twenty-two) do not anticipate benefits to the listing, and the remaining thirty-one percent of respondents (seven of twenty-two) are not sure if there are benefits to the proposed listing.

There are likely a few small businesses outside of the commercial shellfish industry that have Japanese eelgrass on their property, such as marinas. There is at least one hotel that might have this species on its property, but it was included in last year's survey since it also commercially raises shellfish on the property. However, control of Japanese eelgrass would not be required by the WSNWCB if the current listing is expanded, and so far no county noxious weed control board has selected this species for mandatory control.

The WSNWCB held a meeting in February 2012, with stakeholders - including representatives from the shellfish industry, state agencies, NGOs, and concerned citizens - to further discuss issues about Japanese eelgrass, after it had been listed as a Class C noxious weed on commercially managed shellfish beds only for the 2012 weed list. The state weed board will likely continue to be a part of the discussion about Japanese eelgrass, since it has generated such interest.

Nonspecific groups:

Proposed addition of a Class B noxious weed: The proposed addition of tall hawkweed as a Class B noxious weed would not result in more than minor costs to small businesses. It appears to be limited in distribution, and the primary known infestations occur on public lands (WSDOT: Hwy. 2 and Hwy. 203).

Proposed addition of a Class C noxious weed: The proposed addition of common barberry as a Class C noxious weed would not incur any additional costs to small business or cause them to lose sales or revenue because destruction of this species in wheat-producing areas of the state is already mandatory under WAC 16-472-030. It is already quarantined under WAC 16-472-020 and thus cannot be sold, traded, or shipped.

Proposed changes of eleven Class B noxious weeds to Class C noxious weeds: Changing these eleven Class B noxious weeds to Class C noxious weeds actually removes landowner responsibility to control these species where they are designated by the WSNWCB. County noxious weed control boards may choose to select some of these species for local control in order to protect agriculture and natural resources if these noxious weeds pose a threat. Control requirements of a Class B designate and a Class B nondesignate or Class C selected for control by a county noxious weed control board are identical, except on timberland.

Proposed amendment to noxious weed regions: The proposed amendment of the existing noxious weed regions serves to simplify the regions used to designate Class B noxious weeds and would not have any costs to small businesses.

Proposed changes in Class B designations: The designations of the sixty-one currently listed Class B noxious weeds have been amended to match the proposed new six-regions map, and updated to better match existing distribution data. The goal is to make the Class B control requirements simpler to understand. For many counties, control requirements have not changed. In general, the WSNWCB designated Class B species for control where they were either absent from or very limited in a given county. If a particular species was more abundant, the WSNWCB did not designate it unless it was at the bequest of the county noxious weed control board, and in most of these cases, control was already required by the state or by the county weed board.

Alternatives to the Proposed Assessment:

Proposed addition of a Class A noxious weed: The alternative to the proposed listing would be that French broom is not added as a Class A noxious weed, resulting in a status quo of the current situation, whereby individual landowners or land managers have the option of voluntarily eradicating the limited populations of this species. County noxious weed boards would not be able to require eradication of this species while it is still limited in distribution, which would likely allow French broom to spread further in Washington state.

Proposed addition of one Class B noxious weed: The alternative to the proposed listing would be to not add tall hawkweed as a Class B noxious weed, resulting in a status quo of the current situation, whereby individual landowners or land managers have the option of voluntarily controlling this species. County noxious weed control boards could educate about tall hawkweed if it is a local concern, but control could not be mandated.

Proposed addition of two Class C noxious weeds: The alternative to the proposed listings would be to not add common teasel or common barberry as Class C noxious weeds, resulting in a status quo of the current situation, whereby individual landowners or land managers have the option of voluntarily controlling common teasel, and destruction of common barberry would still be required under WAC 16-742-030. County noxious weed control boards could educate about both species if they are a local concern, but control could not be mandated through chapter 17.10 RCW of either species.

Proposed amendment to Class C noxious weed listing: The alternative to the proposed amendment to the current Japanese eelgrass listing is that it would remain a recognized Class C noxious weed on commercially managed shellfish beds only, resulting in a status quo of the current situation. Individual landowners or land managers would have the option of voluntarily controlling this species but county noxious weed control boards could only require control on commercially managed shellfish beds if control were to be mandatory.

Proposed changes of eleven Class B noxious weeds to Class C noxious weeds: The alternative to the proposed changes of eleven Class B to Class C noxious weeds would be to leave these species as Class B noxious weeds with their current designations intact.

Proposed amendment to noxious weed regions: The alternative to the proposed amendment to the noxious weed regions would be to leave the existing ten regions the way they are currently described.

Proposed amendments of current Class B designations: The alternative to the proposed amendments of current Class B designations would be to leave them the way they are written, using the ten noxious weed regions.

Conclusions: Few, if any, small businesses will be directly impacted by these proposed changes to the 2013 noxious weed list. Based on feedback from the horticultural industry, French broom does not appear to be widely carried in the nursery trade, so it is unlikely that these businesses will experience direct or even indirect negative impacts to sales or revenue. It is also unlikely that craft supply stores and florists will experience direct or even indirect negative impacts to sales or revenue due to the Class C listing of common teasel. Since common barberry is already quarantined (WAC 16-742-020) and destruction of these shrubs is already required under WAC 16-472-030 in wheat-producing areas, there will be no changes to small businesses if it is added as a Class C noxious weed. Tall hawkweed is limited in distribution and known infestations occur on public lands, so few if any small businesses will be affected if this species is added as a Class B noxious weed. The majority of small businesses with Japanese eelgrass on their property are commercial shellfish growers. An SBEIS analysis conducted last year, when Japanese eelgrass was proposed as a Class C noxious weed on commercially managed shellfish beds only indicated that any foreseen negative impacts to sales or revenue would be the direct result of the nonnative plant Japanese eelgrass on their shellfish beds and not due to the actual noxious weed listing. The WSNWCB would not require control of this species and does not mandate control methods. Since shellfish growers and other property owners, including other small businesses, can control Japanese eelgrass whether or not it is listed as a noxious weed, these potential indirect impacts on businesses would not be the direct result of the noxious weed listing.

The proposed changes of eleven Class B noxious weeds to Class C noxious weeds would actually ease control requirements by the state. Amending the Class B designation regions from ten to six would not have direct impacts on small businesses, although it would make the designation regions easier to understand. Amending the designations of current Class B noxious weeds to correspond to the new regions would not have any impact to small businesses, and the net impact of updating Class B designations to fit current distribution would likely be negligible or neutral.

Based upon the above analysis, the WSNWCB concludes that minor costs - if any - imposed would affect less than ten percent of small businesses and would not exceed $100 in lost sales or revenue as a direct result of the proposed rule-making changes. The WSNWCB concludes that small businesses will not be disproportionately impacted, nor would the proposed rule changes impose more than a minor cost on businesses in an industry. Therefore, we conclude that a formal SBEIS is not required.

A cost-benefit analysis is not required under RCW 34.05.328. The WSNWCB is not one of the agencies listed in this section.

October 3, 2012

Alison Halpern

Executive Secretary

OTS-5054.1


AMENDATORY SECTION(Amending WSR 99-24-029, filed 11/23/99, effective 1/3/00)

WAC 16-750-004   Noxious weed region descriptions.   The state of Washington is divided into ((ten)) six regions for the purpose of designating Class B noxious weeds.

(1) Region 1 description. A region ((consisting of all lands lying within the boundaries of Clallam and Jefferson counties.

(2) Region 2 description. A region consisting of all lands lying within the boundaries of Whatcom, Skagit, Snohomish, San Juan, and Island counties.

(3) Region 3 description. A region consisting of:

(a) All lands lying within the boundaries of Okanogan County.

(b) All lands lying within the boundaries of Chelan and Douglas counties and north of Highway 2.

(4) Region 4 description. A region consisting of:

(a) All lands lying within the boundaries of Ferry, Stevens, and Pend Oreille counties.

(b) All lands lying within the boundaries of Spokane County and north of the Spokane River.

(5) Region 5 description. A region consisting of all lands lying within the boundaries of Grays Harbor, Mason, Kitsap, Thurston, Pierce, and King counties.

(6) Region 6 description. A region consisting of:

(a) All lands lying within the boundaries of Kittitas and Grant counties.

(b) All lands lying within the boundaries of Chelan and Douglas counties and south of Highway 2.

(c) All lands lying within the boundaries of Yakima County and north of Highway 12 from the Yakima -- Lewis County line to Yakima and north of Highway 82 from Yakima to the Yakima -- Kittitas County line.

(d) All lands lying within the boundaries of Ranges 28E, 29E, and 30E of Adams County.

(7) Region 7 description. A region consisting of:

(a) All lands lying within the boundaries of Lincoln and Whitman counties.

(b) All lands lying within the boundaries of Spokane County and south of the Spokane River.

(c) All lands lying within the boundaries of Ranges 31E, 32E, 33E, 34E, 35E, 36E, 37E, and 38E of Adams County.

(8) Region 8 description. A region consisting of all lands lying within the boundaries of Pacific, Lewis, Wahkiakum, Cowlitz, Skamania, and Clark counties.

(9) Region 9 description. A region consisting of:

(a) All lands lying within the boundaries of Benton and Klickitat counties.

(b) All lands lying within the boundaries of Yakima County and south of Highway 12 from the Yakima -- Lewis County line to Yakima and south of Highway 82 from Yakima to the Yakima -- Kittitas County line.

(c) All lands lying within the boundaries of Franklin County and west of Highway 395.

(10) Region 10 description. A region consisting of:

(a) All lands lying within the boundaries of Asotin, Garfield, Columbia, and Walla Walla counties.

(b) All lands lying within the boundaries of Franklin County and east of Highway 395.)) containing all lands lying within the boundaries of Clallam, Jefferson, Grays Harbor, Mason, and Pacific counties.

(2) Region 2 description. A region containing all lands lying within the boundaries of San Juan, Whatcom, Skagit, Snohomish, Island, King, Kitsap, Pierce, and Thurston counties.

(3) Region 3 description. A region containing all lands lying within the boundaries of Lewis, Cowlitz, Wahkiakum, Clark, and Skamania counties.

(4) Region 4 description. A region containing all lands lying within the boundaries of Chelan, Douglas, Okanogan, Ferry, Stevens, and Pend Oreille counties.

(5) Region 5 description. A region containing all lands lying within the boundaries of Klickitat, Yakima, Kittitas, Grant, Adams, Lincoln, Spokane, and Whitman counties.

(6) Region 6 description. A region containing all lands lying within the boundaries of Benton, Franklin, Walla Walla, Columbia, Garfield, and Asotin counties.

[Statutory Authority: Chapter 17.10 RCW. 99-24-029, 16-750-004, filed 11/23/99, effective 1/3/00; 91-24-072, 16-750-004, filed 12/2/91, effective 1/2/92; 88-18-001 (Order 24, Resolution No. 24), 16-750-004, filed 8/25/88.]


AMENDATORY SECTION(Amending WSR 12-01-050, filed 12/15/11, effective 1/15/12)

WAC 16-750-005   State noxious weed list--Class A noxious weeds.  


Common Name Scientific Name
((bean-caper, Syrian Zygophyllum fabago
blueweed, Texas Helianthus ciliaris
brome, false Brachypodium sylvaticum
broom, Spanish Spartium junceum
buffalobur Solanum rostratum
bulrush, ricefield Schoenoplectus mucronatus
clary, meadow Salvia pratensis
clematis, oriental Clematis orientalis
cordgrass, common Spartina anglica
cordgrass, dense flower Spartina densiflora
cordgrass, salt meadow Spartina patens
cordgrass, smooth Spartina alterniflora
crupina, common Crupina vulgaris
flax, spurge Thymelaea passerina
four o'clock, wild Mirabilis nyctaginea
geranium, shiny Geranium lucidum
goatsrue Galega officinalis
hawkweed, European Hieracium sabaudum
hawkweed, yellow devil Hieracium floribundum
hogweed, giant Heracleum mantegazzianum
hydrilla Hydrilla verticillata
johnsongrass Sorghum halepense
knapweed, bighead Centaurea macrocephala
knapweed, Vochin Centaurea nigrescens
kudzu Pueraria montana var. lobata
milfoil, variable-leaf Myriophyllum heterophyllum
mustard, garlic Alliaria petiolata
nightshade, silverleaf Solanum elaeagnifolium
primrose-willow, floating Ludwigia peploides
rush, flowering Butomus umbellatus
sage, clary Salvia sclarea
sage, Mediterranean Salvia aethiopis
spurge, eggleaf Euphorbia oblongata
starthistle, purple Centaurea calcitrapa
sweetgrass, reed Glyceria maxima
thistle, Italian Carduus pycnocephalus
thistle, milk Silybum marianum
thistle, slenderflower Carduus tenuiflorus
velvetleaf Abutilon theophrasti
woad, dyers Isatis tinctoria))
broom, French Genista monspessulana
broom, Spanish Spartium junceum
buffalobur Solanum rostratum
common crupina Crupina vulgaris
cordgrass, common Spartina anglica
cordgrass, dense flower Spartina densiflora
cordgrass, salt meadow Spartina patens
cordgrass, smooth Spartina alterniflora
dyers woad Isatis tinctoria
eggleaf spurge Euphorbia oblongata
false brome Brachypodium sylvaticum
floating primrose-willow Ludwigia peploides
flowering rush Butomus umbellatus
garlic mustard Alliaria petiolata
giant hogweed Heracleum mantegazzianum
goatsrue Galega officinalis
hawkweed, European Hieracium sabaudum
hawkweed, yellow devil Hieracium floribundum
hydrilla Hydrilla verticillata
johnsongrass Sorghum halepense
knapweed, bighead Centaurea macrocephala
knapweed, Vochin Centaurea nigrescens
kudzu Pueraria montana var. lobata
meadow clary Salvia pratensis
oriental clematis Clematis orientalis
purple starthistle Centaurea calcitrapa
reed sweetgrass Glyceria maxima
ricefield bulrush Schoenoplectus mucronatus
sage, clary Salvia sclarea
sage, Mediterranean Salvia aethiopis
shiny geranium Geranium lucidum
silverleaf nightshade Solanum elaeagnifolium
spurge flax Thymelaea passerina
Syrian bean-caper Zygophyllum fabago
Texas blueweed Helianthus ciliaris
thistle, Italian Carduus pycnocephalus
thistle, milk Silybum marianum
thistle, slenderflower Carduus tenuiflorus
variable-leaf milfoil Myriophyllum heterophyllum
velvetleaf Abutilon theophrasti
wild four o'clock Mirabilis nyctaginea

[Statutory Authority: Chapters 17.10 and 34.05 RCW. 12-01-050, 16-750-005, filed 12/15/11, effective 1/15/12; 09-01-071, 16-750-005, filed 12/15/08, effective 1/16/09; 07-24-023, 16-750-005, filed 11/28/07, effective 1/1/08; 05-24-026, 16-750-005, filed 11/30/05, effective 12/31/05; 03-04-001, 16-750-005, filed 1/22/03, effective 2/22/03. Statutory Authority: Chapter 17.10 RCW. 99-24-029, 16-750-005, filed 11/23/99, effective 1/3/00; 98-24-026, 16-750-005, filed 11/23/98, effective 1/2/99; 97-24-051, 16-750-005, filed 11/26/97, effective 1/2/98. Statutory Authority: RCW 17.10.080. 96-06-030, 16-750-005, filed 2/29/96, effective 3/31/96. Statutory Authority: Chapter 17.10 RCW. 93-01-004, 16-750-005, filed 12/2/92, effective 1/2/93; 91-24-072, 16-750-005, filed 12/2/91, effective 1/2/92; 91-01-016, 16-750-005, filed 12/7/90, effective 1/7/91; 90-01-004, 16-750-005, filed 12/7/89, effective 1/7/90; 88-24-002 (Order 26, Resolution No. 26), 16-750-005, filed 11/29/88. Statutory Authority: RCW 17.10.080. 88-07-016 (Order 22, Resolution No. 22), 16-750-005, filed 3/7/88.]


AMENDATORY SECTION(Amending WSR 12-01-050, filed 12/15/11, effective 1/15/12)

WAC 16-750-011   State noxious weed list -- Class B noxious weeds.  
Name Will be a "Class B designate" in all

lands lying within:

(((1) alyssum, hoary Berteroa incana (a) regions 1, 2, 5, 6, 8, 9, 10
(b) Chelan and Douglas counties of region 3
(c) Okanogan County of region 3, except Ranges 29 through 31 East of Townships 37 through 40 North
(d) Ferry County of region 4 south of Hwy 20
(e) Adams and Whitman counties of region 7.
(2) archangel, yellow Lamiastrum galeobdolon (a) Clallam County of region 1
(b) San Juan County of region 2
(c) Cowlitz and Skamania counties of region 8.
(3) arrowhead, grass-leaved Sagittaria graminea (a) regions 1, 3, 4, 6, 7, 8, 9, 10
(b) region 2 except Lake Roesiger, Lake Serene, Lake Loma and Echo Lake in Snohomish County
(c) region 5 except Mason Lake in Mason County.
(4) blackgrass Alopecurus myosuroides (a) regions 1, 2, 3, 5, 6, 8, 9, 10
(b) Ferry, Stevens, Pend Oreille counties of region 4
(c) Adams County of region 7.
(5) blueweed Echium vulgare (a) regions 1, 2, 3, 4, 5, 6, 8, 9, 10
(b) region 7 except for an area starting at the Stevens County line on SR 291 south to the SR 291 bridge over the Little Spokane River, thence upstream along the Little Spokane River to the first Rutter Parkway Bridge; thence south along the Rutter Parkway to the intersection of Rutter Parkway and Indian Trail Road; thence southerly along Indian Trail Road to a point three miles south (on section line between sections 22 and 27, T-26N, R-42E); thence due west to a point intersecting the line between Ranges 41 and 42; thence north along this line to a point 1/4 mile south of Charles Road; thence northwesterly parallel to Charles Road to a point 1/4 miles south of the intersection of Charles Road and West Shore Road; thence northerly along West Shore Road to the Spokane River (Long Lake); thence southeasterly along the Spokane River to the point of beginning.
(6) broom, Scotch Cytisus

scoparius

regions 3, 4, 6, 7, 9, 10.
(7) bryony, white Bryonia alba (a) regions 1, 2, 3, 4, 5, 6, 8, 9
(b) region 7 except Whitman County
(c) Franklin and Asotin counties of region 10.
(8) bugloss, common

Anchusa officinalis

(a) regions 1, 2, 3, 5, 6, 8, 9, 10
(b) region 4 except Stevens and Spokane counties
(c) Lincoln, Adams, and Whitman counties of region 7.
(9) bugloss, annual Anchusa arvensis (a) regions 1, 2, 3, 4, 5, 6, 8, 9
(b) Lincoln and Adams counties
(c) Whitman County except ranges 43 through 46 East of Townships 16 through 20 North
(d) Asotin County of region 10.
(10) butterfly bush Buddleja davidii (a) Pend Oreille County of region 4
(b) Grays Harbor County, and that portion of Thurston County lying below the ordinary high-water mark of the Nisqually River in region 5
(c) Kittitas County of region 6
(d) Lincoln County of region 7.
(11) camelthorn Alhagi maurorum (a) regions 1, 2, 3, 4, 5, 7, 8, 9
(b) region 6 except those portions of Sections 23, 24, 25, and 29 through 36, T16N, R27E, W.M. lying outside Intercounty Weed District No. 52 and except Sections 1 through 12, T15N, R27E, W.M. in Grant County and except the area west of Highway 17 and north of Highway 26 in Adams County
(c) Franklin, Columbia, Garfield, and Asotin counties of region 10
(d)

an area beginning at the Washington--Oregon border at the southwest portion of section 5, R32E, T6N, then north to the northwest corner of section 3, R32E, T7N, then east to the northeast corner of section 3, R36E, T7N, then south to southeast portion of section 15, R36E, T6N, at the Washington -- Oregon border, then west along the Washington--Oregon border to the point of beginning.
(12) carrot, wild Daucus carota (a) regions 3, 7 (except where intentionally cultivated)
(b) Spokane and Ferry counties of region 4 (except where intentionally cultivated)
(c) region 6, except Yakima County (except where intentionally cultivated)
(d) region 9, except Yakima County (except where intentionally cultivated)
(e) region 10, except Walla Walla County (except where intentionally cultivated.
(13) catsear, common Hypochaeris radicata (a) regions 3, 4, 6, 7, 10
(b) region 9 except Klickitat County.
(14) chervil, wild Anthriscus sylvestris (a) regions 1, 3, 4, 5, 6, 7, 9, 10
(b) region 2 except Guemes Island in Skagit County
(c) region 8 except Clark County.
(15) cinquefoil, sulfur Potentilla recta (a) regions 1, 3, 8, 10
(b) region 2 except Skagit County
(c) region 4 except Stevens, Ferry, and Pend Oreille counties
(d) region 5 except Thurston County
(e) region 6 except Yakima County
(f) region 7 except Spokane County
(g) region 8 except Lewis County
(h) region 9 except Klickitat County.
(16) daisy, oxeye Leucanthemum vulgare (a) regions 7, 10
(b) region 9 except those areas lying within Klickitat and Yakima counties west of Range 13 East
(c) region 6 except those areas lying within Yakima and Kittitas counties west of Range 13 E.
(17) elodea, Brazilian Egeria densa (a) regions 3, 4, 6, 7, 9, 10
(b) Lewis County of region 8
(c) Clallam County of region 1
(d) King County of region 5, except lakes Washington, Sammamish, Union and Fenwick.
(18) fanwort Cabomba caroliniana (a) regions 1, 2, 3, 4, 5, 6, 7, 9, 10
(b) region 8 except T8N, R3W of Cowlitz County.
(19) fennel, common Foeniculum vulgare (except var. azoricum) (a) regions 3, 4, 6, 7, 8, 9, 10
(b) region 1 except the incorporated areas of Port Townsend
(c) region 2 except the incorporated areas of Anacortes and Mount Vernon
(d) region 5 except King and Kitsap counties.
(20) fieldcress, Austrian Rorippa austriaca (a) regions 1, 2, 3, 4, 5, 6, 8, 9
(b) regions 7 and 10 except within the Palouse River Canyon from Big Palouse Falls to the Snake River.
(21) floating heart, yellow Nymphoides peltata (a) regions 1, 2, 3, 5, 6, 7, 8, 9, 10
(b) region 4 except the Spokane River between Long Lake Dam and Nine Mile Dam.
(22) gorse Ulex europaeus (a) regions 1, 3, 4, 6, 7, 9, 10
(b) Skagit, Island, and Whatcom counties of region 2
(c) Thurston, Kitsap, Pierce, and King counties of region 5
(d) Wahkiakum, Clark, Skamania, Cowlitz, and Lewis counties of region 8.
(23) hawkweed, mouseear Hieracium pilosella (a) regions 1, 2, 3, 4, 6, 7, 8, 9, 10
(b) region 5 except Thurston County
(c) Thurston County lying within T17N, R1W, S31; T16N, R2W, S30 W1/2; T16N, R3W, S25, SE1/4; T16N, R3W, S36, N1/2; T16N, R2W, S31, NW1/4.
(24) hawkweed, orange Hieracium aurantiacum (a) regions 1, 3, 6, 9, 10
(b) Skagit County of region 2
(c) Ferry County of region 4
(d) Pierce, Thurston and King counties of region 5
(e) Lincoln and Adams counties of region 7
(f) Lewis County of region 8.
(25) hawkweed, polar Hieracium atratum (a) regions 1, 2, 3, 4, 6, 7, 8, 9, 10
(b) region 5 outside the boundaries of Mt. Rainier National Park.
(26) hawkweed, queen-devil Hieracium glomeratum (a) regions 1, 2, 3, 5, 6, 7, 8, 9, 10
(b) Ferry County of region 4.
(27) hawkweed, smooth Hieracium laevigatum (a) regions 1, 3, 4, 5, 6, 7, 8, 9, 10
(b) San Juan, Island, and Skagit counties of region 2.
(28) hawkweed, yellow Hieracium caespitosum (a) regions 1, 2, 3, 5, 6, 7, 8, 10
(b) region 4 except Stevens and Pend Oreille counties
(c) region 9 except sections 32, 33 and 34 of T6N, R12E, and sections 4, 5, 6, and 7 of T5N, R12E, and section 12 of T5N, R11E, of Klickitat County.
(29) helmet, policeman's Impatiens glandulifera (a) regions 1, 3, 4, 6, 7, 8, 9, 10
(b) region 2 except Whatcom County
(c) region 5 except Thurston County.
(30) herb-Robert Geranium robertianum regions 3, 4, 6, 7, 9, 10
(31) houndstongue Cynoglossum officinale (a) Kittitas County of region 6
(b) region 5
(c) Douglas and Chelan counties of regions 3 and 6.
(32) indigobush Amorpha fruticosa (a) regions 1, 2, 3, 4, 5, 6
(b) regions 7 and 10 except within 200 feet of the Snake River from Central Ferry downstream
(c) regions 8, 9, and 10 except within 200 feet of the Columbia River.
(33) knapweed, black Centaurea nigra (a) regions 1, 2, 3, 4, 7, 9, 10
(b) region 5 except that area below the ordinary highwater mark of the Nisqually River, beginning at Alder Dam and downstream to the mouth of the Nisqually River in Pierce and Thurston counties
(c) region 6 except Kittitas County
(d) region 8 except Clark County.
(34) knapweed, brown Centaurea jacea (a) regions 1, 2, 3, 4, 7, 9, 10
(b) region 5 except that area below the ordinary highwater mark of the Nisqually River, beginning at Alder Dam and downstream to the mouth of the Nisqually River in Pierce and Thurston counties
(c) region 6 except Kittitas County
(d) region 8 except Clark County.
(35) knapweed, diffuse Centaurea diffusa (a) regions 1, 2, 5, 8
(b) Grant County lying in Townships 13 through 16 North, Ranges 25 through 27 East; Townships 17 and 18 N., Ranges 25 through 30 East; Townships 19 and 20 North, Ranges 29 and 30 East; T21N, R23E, Sections 1 through 30; T21N, R26E., Sections 5, 6, 7, 8, 17, and 18; East 1/2 Township 21N, Range 27E.; T21N, Ranges 28 through 30 E; those portions of Townships 22 through 28N, Ranges 28 through 30 E.; those portions of Township 22 through 28N., Ranges 23 through 30E. lying in Grant County; all W.M.
(c)

Adams County except those areas within T15N, R36E, Section 36; T15N, R37E, Sections 22, 26, 27, 28, 31, 32, 33 and 34; T15N, R37E, western half of Sections 23, 24 and 25; T15N, R38E, Sections 2, 10, 11, 14, 15, 19 and 20; T16N, R38E, Sections 34 and 35; T17N, R37E, Sections 5 and 6
(d) Franklin County of regions 9 and 10.
(36) knapweed, meadow Centaurea jacea x nigra (a) regions 1, 2, 3, 4, 7, 9, 10
(b) region 5 except that area below the ordinary highwater mark of the Nisqually River, beginning at Alder Dam and downstream to the mouth of the Nisqually River in Pierce and Thurston counties
(c) region 6 except Kittitas County
(d) region 8 except Clark County.
(37) knapweed, Russian Acroptilon repens (a) regions 1, 2, 5, 7, 8
(b) region 4 except that area lying within the boundaries of the Colville Indian Reservation within Ferry County
(c) Adams County of region 6 except for the area west of Highway 17 and North of Highway 26
(d) Intercounty Weed District No. 52
(e) region 10 except Franklin County.
(38) knapweed, spotted Centaurea stoebe (a) regions 1, 2, 3, 5, 6, 9
(b) Ferry County of region 4
(c) Adams and Whitman counties of region 7
(d) region 8, except that portion of Lewis County below the ordinary high watermark of the Tilton River from Hwy. 508 to Lake Mayfield
(e) region 10 except Garfield County.
(39) knotweed, Bohemian Polygonum x bohemicum (a) Kittitas County of region 6
(b) Chelan and Douglas counties of regions 3 and 6
(c) Pend Oreille County of region 4
(d) Asotin County of region 10.
(40) knotweed, giant Polygonum sachalinense (a) Kittitas County of region 6
(b) Pend Oreille County of region 4
(c) Asotin County of region 10.
(41) knotweed, Himalayan Polygonum polystachyum (a) Kittitas County of region 6
(b) Pend Oreille County of region 4
(c) Lewis County of region 8
(d) Asotin County of region 10.
(42) knotweed, Japanese Polygonum cuspidatum (a) Kittitas County of region 6
(b) Chelan and Douglas counties of regions 3 and 6
(c) Pend Oreille County of region 4
(d) Asotin County of region 10.
(43) kochia Kochia scoparia (a) Regions 1, 2, 5, 8
(b) Pend Oreille County of region 4
(c) Kittitas County of region 6.
(44) laurel, spurge Daphne laureola (a) regions 3, 4, 6, 7, 8, 9, 10
(b) San Juan, Snohomish and Skagit counties of region 2
(c) Grays Harbor and Mason counties of region 5.
(45) lawnweed Soliva sessilis (a) regions 1, 2, 3, 4, 6, 7, 8, 9, 10
(b) region 5 except King and Thurston counties.
(46) lepyrodiclis Lepyrodiclis holosteoides (a) regions 1, 2, 3, 4, 5, 6, 8, 9, 10
(b) region 7 except an area within Whitman County east of the Pullman--Wawawai Road from Wawawai to Pullman and south of State Highway 270 from Pullman to Moscow, Idaho.
(47) loosestrife, garden Lysimachia vulgaris (a) regions 1, 2, 3, 4, 6, 7, 8, 9, 10
(b) region 5 except King County
(c) Those portions of King County lying north of I-90 and east of the line extending from SR522 to SR202 to E. Lake Sammamish Parkway; west of I-5 including Vashon Island; south of I-90 and east and south of I-405 to the county line.
(48) loosestrife, purple Lythrum salicaria (a) regions 1, 4, 7, 8
(b) region 2 except Snohomish County
(c)

region 3 except within 100 feet of the ordinary highwater mark of the Okanogan River from the Canadian border south to Riverside
(d) Grays Harbor, Mason, Kitsap, and Thurston counties of region 5
(e) Those portions of King County lying north of I-90 and east of the line extending from SR522 to SR202 to E. Lake Sammamish Parkway; west of I-5 including Vashon Island; south of I-90 and east and south of I-405 to the county line
(f) Pierce County, except those areas lying within T2D, 21, 22N, R1W and R1E, all sections
(g) region 6 except that portion of Grant County lying northerly of the Frenchmen Hills-O'Sullivan Dam Road, southerly of Highway Interstate 90, easterly of the section line of the location of County Road J SW/NW if constructed and westerly of the section line of the location of County Road H SE/NE if constructed
(h) region 9 except Benton County
(i) region 10 except Walla Walla County
(j) Intercounty Weed Districts No. 51 and No. 52.
(49) loosestrife, wand Lythrum virgatum (a) regions 1, 4, 7, 8
(b) region 2 except Snohomish County
(c) region 3 except within 100 feet of the ordinary highwater mark of the Okanogan River from the Canadian border south to Riverside
(d) region 5 except King County
(e) Those portions of King County lying north of I-90 and east of the line extending from SR522 to SR202 to E. Lake Sammamish Parkway; west of I-5 including Vashon Island; south of I-90 and east and south of I-405 to the county line
(f) region 6 except that portion of Grant County lying northerly of the Frenchmen Hills-O'Sullivan Dam Road, southerly of Highway Interstate 90, easterly of the section line of the location of County Road J SW/NW if constructed and westerly of the section line of the location of County Road H SE/NE if constructed
(g) region 9 except Benton County
(h) region 10 except Walla Walla County
(i) Intercounty Weed Districts No. 51 and No. 52.
(50) nutsedge, yellow Cyperus esculentus (a) regions 1, 2, 3, 4, 5, 7, 8
(b) region 6 except those areas lying between State Highway 26 and State Highway 28, and westerly of Dodson Road in Grant County, and except S 1/2, Sec. 2, T20N, R25E., W.M.
(c) region 9 except:
(i) except those areas lying within the following boundary description within Yakima County: Beginning at the intersection of Highway 12 and Parker Heights Road and continuing easterly to Konnowac Pass Road follow said road north to the intersection of Konnowac Pass Road and Nightingale Road. The northern boundary shall be the Roza Canal, continuing from the established point at Nightingale Road. The boundaries will follow the Roza Canal easterly to the County Line Road. The east boundaries will be the Yakima/Benton County Line from a point beginning at the County Line and Highway 22 (near Byron) continuing westerly along Highway 22 (to near the city of Mabton) to the intersection of Highway 22 and the Reservation Boundary (Division Road) and continuing north to the Yakima River. Then it will follow the river northwest to the Wapato-Donald Road continuing north along said road to Highway 12 then Highway 12 to Parker Heights Road.
(ii) an area lying southerly of State Route 14 and within T2N, Ranges 13 and 14 E of Klickitat County
(d) region 10 except Walla Walla County.
(51) oxtongue, hawkweed Picris hieracioides (a) regions 1, 2, 3, 4, 5, 6, 7, 9, 10
(b) region 8 except Skamania County.
(52) parrotfeather Myriophyllum aquaticum (a) regions 1, 2, 3, 4, 5, 6, 7, 9, 10
(b) region 8 except Clark, Cowlitz, and Wahkiakum counties.
(53) pepperweed, perennial Lepidium latifolium (a) regions 1, 2, 3, 4, 5, 7, 8, 10
(b) Intercounty Weed Districts No. 51 and 52
(c) Kittitas County of region 6
(d) Adams County of region 6 except for the area west of Highway 17 and north of Highway 26.
(54) poison-hemlock Conium maculatum (a) Clallam County and that area lying within Port Townsend city limits in Jefferson County of region 1
(b) Snohomish and San Juan counties of region 2
(c) Pend Oreille County of region 4
(d) Kitsap and Thurston counties of region 5
(e) Kittitas County of region 6
(f) Lincoln County of region 7
(g) Clark County of region 8.
(55) primrose, water Ludwigia hexapetala (a) regions 1, 2, 3, 4, 5, 6, 7, 9, 10
(b) region 8 except T8N, R3W, S14 of Cowlitz County.
(56) puncturevine Tribulus terrestris (a) Skagit County of region 2
(b) Kittitas County of region 6
(c) Adams County
(d) Clallam County of region 1.
(57) ragwort, tansy Senecio jacobaea (a) regions 3, 4, 6, 7, 9, 10
(b) region 5, that portion of Pierce County lying south or east of a boundary beginning at the White River and State Highway 410, then west along State Highway 410 to intersection with State Highway 162 (Orting) to intersection with Orville Road, then south along Orville Road to intersection with Kapowsin Highway (304th Street East), then west following Kapowsin Highway to intersection with State Route 7, then south along State Route 7 to intersection with State Route 702, then west along State Route 702 to intersection with State Route 507, then southwest along State Route 507 to intersection with the Nisqually River.
(58) reed, common, nonnative geno types Phragmites australis (a)

(b)


(c)

region 1

Island, San Juan and Snohomish counties of region 2


Okanogan County of region 3

(d) Pend Oreille and Stevens counties of region 4
(e) region 5 except Grays Harbor and Pierce counties
(f) Kittitas County of region 6
(g) Yakima County of regions 6 and 9
(h) Lincoln County of region 7
(i) Clark and Lewis counties of region 8
(j) Klickitat County of region 9
(k) Asotin County of region 10.
(59) Saltcedar Tamarix ramosissima

(a) regions 1, 2, 3, 4, 5, 7, 8, unless intentionally established prior to 2004
(b) region 6 except Grant County, unless intentionally established prior to 2004
(c) region 9 except Benton and Franklin counties, unless intentionally established prior to 2004
(d) region 10 except Franklin County, unless intentionally established prior to 2004.
(60) sandbur, longspine Cenchrus longispinus (a) regions 1, 2, 3, 4, 5, 7, 8
(b) Adams County of region 6 except for that area lying within Intercounty Weed District No. 52
(c) Intercounty Weed District No. 51
(d) Kittitas County of region 6
(e) Asotin County of region 10.
(61) skeletonweed, rush Chondrilla juncea (a) regions 1, 2, 3, 5, 8
(b) Franklin County except T13N, R36E; and T14N, R36E
(c) Adams County except those areas lying east of a line running north from Franklin County along the western boundary of Range 36 East to State Highway 26 then north on Sage Road until it intersects Lee Road, then due north until intersection with Providence Road, then east to State Highway 261, then north along State Highway 261 to its intersection with Interstate 90, henceforth on a due north line to intersection with Bauman Road, then north along Bauman Road to its terminus, then due north to the Lincoln County line.
(d) region 6 except that portion lying within Grant County that is southerly of State Highway 28, northerly of Interstate Highway 90 and easterly of Grant County Road I Northwest
(e) Stevens County north of Township 33 North of region 4
(f) Ferry and Pend Oreille counties of region 4
(g) region 9 except the Dallesport area in Klickitat County lying within Township 2N, Ranges 13 and 14
(h) Asotin County of region 10
(i) Garfield County south of Highway 12
(j) Columbia County from the Walla Walla County line on Highway 12, all areas south of Turner Road; at Turner Road to the Garfield county line, all areas south and east of Turner Road
(k) Whitman County lying in Ranges 43 through 46 East of Townships 15 through 20 North; T14N, Ranges 44 through 46 East; and T13N, Ranges 45 and 46 East.
(62) sowthistle, perennial Sonchus arvensis ssp. arvensis (a) regions 1, 2, 3, 4, 7, 8, 9, 10
(b) Adams County of region 6
(c) region 5 except for sections 28, 29, 30, 31, 32, and 33 in T19N, R1E of Thurston and Pierce counties.
(63) spurge, leafy Euphorbia esula (a) regions 1, 2, 3, 4, 5, 6, 8, 9, 10
(b) region 7 except as follows:
(i) T27N, R37E, Sections 34, 35, 36; T27N, R38E, Sections 31, 32, 33; T26N, R37E, Sections 1, 2, 3, 10, 11, 12, 13, 14, 15, 16, 26; T26N, R38E, Sections 5, 6, 7, 8 of Lincoln County
(ii) T24N, R43E, Section 12, Qtr. Section 3, Parcel No. 9068 of Spokane County.
(64) spurge, myrtle Euphorbia myrsinites L (a) Pend Oreille County of region 4
(b) Along the Asotin, Grande Ronde, and Snake rivers and in all other areas that are not an actively cultivated garden in Asotin County of region 10.
(65) starthistle, yellow Centaurea solstitialis (a) regions 1, 2, 3, 5, 6, 8
(b) region 4 except those areas within Stevens County bounded by a line beginning at the intersection of State Highway 20 and State Highway 25, then north to intersection with Pinkston Creek Road, then east along Pinkston Creek Road to intersection with Highland Loop Road, then south along Highland Loop Road to intersection with State Highway 20, then west along State Highway 20 to intersection with State Highway 25
(c) region 7 except those areas within Whitman County lying south of State Highway 26 from the Adams County line to Colfax and south of State Highway 195 from Colfax to Pullman and south of State Highway 270 from Pullman to the Idaho border
(d) Franklin County
(e) region 9 except Klickitat County
(f) lands west of Shumaker Grade and south of Mill Road in Asotin County.
(66) Swainsonpea Sphaerophysa salsula (a) regions 1, 2, 3, 4, 5, 7, 8
(b) Columbia, Garfield, Asotin, and Franklin counties
(c) an area beginning at the Washington--Oregon border at the southwest portion of Section 15, R32E, T6N, then north to the northwest corner of Section 3, R32E, T7N, then east to the northeast corner of Section 3, R36E, T7N, then south to the southeast portion of Section 15, R36E, T6N, at the Washington -- Oregon border, then west along the Washington--Oregon border to the point of beginning
(d) Weed District No. 3 of Grant County
(e) Adams County of region 6.
(67) thistle, musk Carduus nutans (a) regions 1, 2, 3, 5, 6, 7, 8, 9, 10
(b) Spokane and Pend Oreille counties.
(68) thistle, plumeless Carduus acanthoides (a) regions 1, 2, 3, 5, 6, 7, 8, 9, 10
(b) region 4 except those areas within Stevens County lying north of State Highway 20.
(69) thistle, Scotch Onopordum acanthium (a) regions 1, 2, 3, 4, 5, 6, 8, 9
(b) region 7 except for those areas within Whitman County lying south of State Highway 26 from the Adams County line to Colfax and south of State Highway 195 from Colfax to Pullman and south of State Highway 270 from Pullman to the Idaho border
(c) Franklin County.
(70) toadflax, Dalmatian Linaria dalmatica ssp. dalmatica (a) regions 1, 2, 5, 8, 10
(b) Douglas County of region 3 lying south of T25N and west of R25E
(c) Okanogan County lying within T 33, 34, 35N, R19, 20, 21, 22E, except the southwest, southeast, and northeast quarters of the northeast quarter of section 27, T35N, R21E; and the northeast quarter of the southeast quarter of section 27, T35N, R21E
(d) Kittitas, Chelan, Douglas, and Adams counties of region 6
(e) Intercounty Weed District No. 51
(f) Weed District No. 3 of Grant County
(g) Lincoln and Adams counties
(h) The western two miles of Spokane County of region 7
(i) region 9 except as follows:
(i) those areas lying within Yakima County
(ii) those areas lying west of the Klickitat River and within Klickitat County.
(71) watermilfoil, Eurasian Myriophyllum spicatum (a) regions 1, 9, 10
(b) Okanogan and Chelan counties of region 3
(c) in all water bodies of public access, except the Pend Oreille River, in Pend Oreille County of region 4
(d) Chelan and Adams counties of region 6
(e) region 7 except Spokane County
(f) region 8 except within 200 feet of the Columbia River.
(72) willow-herb, hairy Epilobium hirsutum (a) regions 1, 3, 4
(b) region 2 except Whatcom and Island counties
(c) region 5 except Thurston County
(d) region 6 except Grant County
(e) region 7 except Whitman County
(f) region 8 except Skamania County
(g) Yakima County of region 9
(h) region 10 except Franklin and Walla Walla counties.))
(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 and Pacific counties
(b) region 2, except Kitsap and Snohomish counties
(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, Anchusa 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, 4, and 6
(b) region 5, except Spokane County
(5) butterfly bush, Buddleja davidii (a) The portion of Thurston County lying below the ordinary high-water mark of the Nisqually River in region 2
(b) Cowlitz County of region 3
(6) camelthorn, alhagi maurorum (a) regions 1, 2, 3, 4, and 5
(b) region 6, except Walla Walla County
(7) common fennel, Foeniculum vulgare (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) Dalmatian toadflax, Linaria dalmatica ssp. dalmatica (a) regions 1, 2, and 3
(b) Adams and Lincoln counties of region 5
(c) Benton and Walla Walla counties of region 6
(10) Eurasian watermilfoil, Myriophyllum spicatum (a) region 1, except Pacific and Mason counties
(b) Island and San Juan counties of region 2
(c) Clark and Cowlitz counties of region 3
(d) Chelan and Okanogan counties of region 4
(e) Adams and Lincoln counties of region 5
(f) Asotin, Columbia, and Garfield counties of region 6
(11) fanwort, Cabomba caroliniana (a) regions 2, 4, 5, and 6
(b) region 1, except Grays Harbor
(c) region 3, except Cowlitz County
(12) gorse, Ulex europaeus (a) region 1, except Grays Harbor and Pacific counties
(b) regions 2, 3, 4, 5, 6
(13) grass-leaved arrowhead, Sagittaria graminea (a) region 1, except Mason County
(b) region 2, except Snohomish County
(c) regions 3, 4, 5, and 6
(14) hairy willow-herb, Epilobium hirsutum (a) regions 1 and 3
(b) region 2, except Thurston and Whatcom counties
(c) region 5, except Klickitat County
(d) Asotin, Columbia, and Garfield counties of region 6
(15) hawkweed oxtongue, Picris hieraciodes (a) regions 1, 2, 4, 5, and 6
(b) region 3, except Skamania County
(16) hawkweed, mouseear, Hieracium pilosella (a) region 1, except Grays Harbor County
(b) region 2, except Pierce and Thurston counties
(c) region 3, except Lewis County
(d) regions 4 and 6
(e) region 5, except Klickitat County
(17) 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
(18) hawkweed, queen-devil, Hieracium glomeratum (a) regions 1, 2, 3, 5, and 6
(b) region 4, except Pend Oreille and Stevens counties
(19) hawkweed, smooth, Hieracium laevigatum (a) regions 1, 3, 5, and 6
(b) region 2, except Skagit and Whatcom counties
(c) region 4, except Pend Oreille and Stevens counties
(20) hawkweed, tall, Hieracium piloselloides (a) regions 1, 2, 3, 5, and 6
(b) region 4, except Pend Oreille and Stevens counties
(21) hawkweed, yellow,

Hieracium caespitosum

(a) region 1, except Pacific County
(b) regions 2 and 6
(c) region 3, except Cowlitz County
(d) region 4, except Pend Oreille and Stevens counties
(e) region 5, except Klickitat and Spokane counties
(22) herb-Robert, Geranium robertianum regions 4, 5, and 6
(23) hoary alyssum, Berteroa incana (a) regions 1, 2, 3, and 6
(b) All areas south of highway 20 in Ferry County of region 4
(c) All areas in Okanogan County of region 4, except Ranges 29-31 East of Townships 37-40 North
(d) region 5, except Klickitat County
(24) houndstongue, Cynoglossum officinale (a) regions 1, 2, and 3
(b) Chelan County of region 4
(c) Yakima, Grant and Adams counties of region 5
(d) Benton County of region 6
(25) indigobush, Amorpha fruticosa (a) regions 1, 2, and 4
(b) Lewis and Skamania counties of region 3
(c) region 5, except Klickitat County
(26) knapweed, black, Centaurea nigra regions 1, 2, 3, 4, 5, and 6
(27) knapweed, brown, Centaurea jacea regions 1, 2, 3, 4, 5, and 6
(28) knapweed, diffuse, Centaurea diffusa (a) region 1, except Mason County
(b) regions 2 and 3
(c) Adams County of region 5
(29) knapweed, meadow, Centaurea jacea x nigra (a) regions 1 and 3
(b) region 2, except Pierce and Whatcom counties
(c) Thurston County of region 2, except below the ordinary high water mark of the Nisqually River
(d) region 4, except Pend Oreille County
(e) region 5, except Kittitas and Klickitat counties
(f) region 6, except Franklin and Walla Walla counties
(30) knapweed, Russian, Acroptilon 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) region 3
(d) Ferry County of region 4
(e) Adams, Grant and Yakima counties of region 5
(f) region 6, except Columbia and Walla Walla counties
(32) knotweed, Bohemian, Polygonum x bohemicum (a) Island County of region 2
(b) Cowlitz and Skamania counties of region 3
(c) region 4, except Pend Oreille and Stevens counties
(d) regions 5, except Whitman and Yakima counties
(e) region 6
(33) knotweed, giant, Polygonum sachalinense (a) region 2, except King, Pierce, and Snohomish counties
(b) region 3, except Lewis County
(c) regions 4, 5, and 6
(34) knotweed, Himalayan, Polygonum polystachyum (a) region 1, except Pacific County
(b) region 2, except King and Pierce counties
(c) Cowlitz, Lewis and Skamania counties of region 3
(d) region 4, except Stevens County
(e) regions 5 and 6
(35) knotweed, Japanese, Polygonum cuspidatum (a) Island, San Juan, and Whatcom counties of region 2
(b) Cowlitz and Skamania counties of region 3
(c) region 4, except Okanogan and Stevens counties
(d) region 5, except Spokane County
(e) region 6
(36) kochia, Kochia scoparia (a) regions 1, 2, and 3
(b) Stevens and Pend Oreille counties of region 4
(c) Adams County of region 5
(37) loosestrife, garden, Lysimachia vulgaris regions 1, 2, 3, 4, 5, 6
(38) loosestrife, purple, Lythrum salicaria (a) Clallam and Jefferson counties of region 1
(b) region 2, except Kitsap, Pierce, 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) Columbia, Garfield, and Walla Walla counties of region 6
(39) loosestrife, wand, Lythrum virgatum (a) Clallam and Jefferson counties of region 1
(b) region 2, except Kitsap, Pierce, 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) Columbia, Garfield, and Walla Walla counties of region 6
(40) parrotfeather, Myriophyllum aquaticum (a) region 1, except Pacific County
(b) regions 2, 4, 5, and 6
(c) Clark and Skamania counties of region 3
(41) 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
(42) 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 and Pend Oreille counties of region 4
(e) Grant, Kittitas and Lincoln counties of region 5
(43) policeman's helmet, Impatiens glandulifera (a) region 1, except Pacific County
(b) region 2, except Pierce, Thurston, and Whatcom counties
(c) region 3, except Clark County
(d) region 4, except Pend Oreille County
(e) regions 5 and 6
(44) 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
(45) rush skeletonweed, Chondrilla juncea (a) regions 1 and 3
(b) region 2, except Kitsap County
(c) region 4, except all areas of Stevens County south of Township 29
(d) Kittitas and Yakima counties of region 5, and Adams County, except those areas lying east of Sage Road, the western border of Range 36
(e) Asotin County of region 6
(46) saltcedar, Tamarix ramosissima (unless intentionally planted prior to 2004) (a) regions 1, 3, 4, and 5
(b) region 2, except King and Thurston counties
(c) region 6, except Benton and Franklin counties
(47) Scotch broom, Cytisus scoparius (a) regions 4 and 6
(b) region 5, except Klickitat County
(48) spurge laurel, Daphne laureola (a) region 1, except Clallam and Jefferson counties
(b) region 2, except King and Kitsap counties
(c) region 3, except Skamania County
(d) regions 4, 5, and 6
(49) spurge, leafy, Euphorbia esula (a) regions 1, 2, 3, and 4
(b) region 5, except Spokane and Whitman counties
(c) region 6, except Columbia and Garfield counties
(50) spurge, myrtle, Euphorbia myrsinites (a) regions 1, 3, 5, and 6
(b) region 2, except King, Kitsap, and Whatcom counties
(c) region 4, except Okanogan and Stevens counties
(51) 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
(52) tansy ragwort, Senecio jacobaea (a) Island and San Juan counties of region 2
(b) Clark and Wahkiakum counties of region 3
(c) regions 4 and 6
(d) region 5, except Klickitat County
(53) 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
(54) thistle, plumeless, Carduus acanthoides (a) regions 1, 2, 3, 5, 6
(b) region 4, except Pend Oreille County and those areas north of State Highway 20 in Stevens County
(55) thistle, Scotch, Onopordum acanthium (a) region 1, 2, and 3
(b) region 4, except Douglas County
(c) region 5, except Spokane and Whitman counties
(56) water primrose, Ludwigia hexapetala (a) regions 1, 2, 4, 5, and 6
(b) region 3, except Cowlitz County
(57) white bryony, Bryonia alba (a) regions 1, 2, 3, and 4
(b) region 5, except Whitman County
(c) Benton County of region 6
(58) wild chervil, Anthriscus sylvestris (a) regions 1, 4, and 6
(b) region 2, except Whatcom County
(c) Wahkiakum and Lewis counties of region 3
(d) region 5, except Whitman County
(59) yellow archangel, Lamiastrum galeobdolon (a) Clallam County of region 1
(b) San Juan, Skagit, and Whatcom counties of region 2
(c) Cowlitz, Skamania and Wahkiakum counties of region 3
(d) regions 4, 5, and 6
(60) yellow floating heart, Nymphoides peltata (a) regions 1, 2, and 6
(b) region 3, except Cowlitz County
(c) region 4, except Stevens County
(d) region 5, except Spokane County
(61) yellow nutsedge, Cyperus esculentus (a) regions 1, 3, and 4
(b) region 2, except Skagit and Thurston counties
(c) region 5, except Klickitat and Yakima Counties
(d) region 6, except Franklin and Walla Walla counties
(62) yellow starthistle, Centaurea solstitialis (a) regions 1, 2, and 3
(b) region 4, except T36 R38 north of Hwy 395/Hwy 20 and west of Pingston Creek Road in Stevens County
(c) region 5, except Klickitat, and Whitman counties

[Statutory Authority: Chapters 17.10 and 34.05 RCW. 12-01-050, 16-750-011, filed 12/15/11, effective 1/15/12; 10-24-037, 16-750-011, filed 11/22/10, effective 12/23/10; 09-01-071, 16-750-011, filed 12/15/08, effective 1/16/09; 07-24-023, 16-750-011, filed 11/28/07, effective 1/1/08; 06-24-056, 16-750-011, filed 12/4/06, effective 1/4/07; 05-24-026, 16-750-011, filed 11/30/05, effective 12/31/05; 05-01-012, 16-750-011, filed 12/2/04, effective 1/2/05. Statutory Authority: Chapter 17.10 RCW. 04-13-014, 16-750-011, filed 6/4/04, effective 7/5/04. Statutory Authority: Chapters 17.10 and 34.05 RCW. 03-24-012, 16-750-011, filed 11/20/03, effective 12/21/03; 03-04-001, 16-750-011, filed 1/22/03, effective 2/22/03. Statutory Authority: Chapter 17.10 RCW. 01-24-035, 16-750-011, filed 11/28/01, effective 12/29/01; 00-24-017, 16-750-011, filed 11/28/00, effective 1/2/01; 99-24-029, 16-750-011, filed 11/23/99, effective 1/3/00; 98-24-026, 16-750-011, filed 11/23/98, effective 1/2/99; 97-24-051, 16-750-011, filed 11/26/97, effective 1/2/98; 97-06-108, 16-750-011, filed 3/5/97, effective 4/5/97. Statutory Authority: RCW 17.10.080. 96-06-030, 16-750-011, filed 2/29/96, effective 3/31/96. Statutory Authority: Chapter 17.10 RCW. 95-06-002, 16-750-011, filed 2/16/95, effective 3/19/95; 94-01-076, 16-750-011, filed 12/10/93, effective 1/10/94; 93-01-004, 16-750-011, filed 12/2/92, effective 1/2/93; 91-24-072, 16-750-011, filed 12/2/91, effective 1/2/92; 91-01-016, 16-750-011, filed 12/7/90, effective 1/7/91; 90-01-004, 16-750-011, filed 12/7/89, effective 1/7/90; 88-24-002 (Order 26, Resolution No. 26), 16-750-011, filed 11/29/88; 88-18-001 (Order 24, Resolution No. 24), 16-750-011, filed 8/25/88. Statutory Authority: RCW 17.10.080. 88-07-016 (Order 22, Resolution No. 22), 16-750-011, filed 3/7/88.]


AMENDATORY SECTION(Amending WSR 12-01-050, filed 12/15/11, effective 1/15/12)

WAC 16-750-015   State noxious weed list -- Class C noxious weeds.  

Common Name Scientific Name
babysbreath Gypsophila paniculata
((beard, old man's Clematis vitalba
bindweed, field Convolvulus arvensis
blackberry, evergreen Rubus laciniatus
blackberry, Himalayan Rubus armeniacus
canarygrass, reed Phalaris arundinacea
cockle, white Silene latifolia ssp. alba
cocklebur, spiny Xanthium spinosum
cress, hoary Cardaria draba
dodder, smoothseed alfalfa Cuscuta approximata
eelgrass, Japanese (on commercially managed shellfish beds only) Zostera japonica
goatgrass, jointed Aegilops cylindrica
groundsel, common Senecio vulgaris
hawkweed, common Hieracium lachenalii
hawkweed, other nonnative species Hieracium sp., except species designated in the note in the left-hand column
Note:
This listing includes all species of Hieracium, except the following:
Species designated as Class A noxious weeds in WAC 16-750-005;
Species designated as Class B noxious weeds in WAC 16-750-011;
Native species designated below:
Canada hawkweed (H. canadense)
houndstongue hawkweed (H. cynoglossoides)
long-beaked hawkweed (H. longiberbe)
narrow-leaved hawkweed (H. umbellatum)
slender hawkweed (H. gracile)
western hawkweed (H. albertinum)
white-flowered hawkweed (H. albiflorum)
woolley-weed (H. scouleri)
henbane, black Hyoscyamus niger
iris, yellow flag Iris pseudacorus
ivy, English, 4 cultivars only: Hedera hibernica 'Hibernicia'
Hedera helix 'Baltica'
Hedera helix 'Pittsburgh'
Hedera helix 'Star'
mayweed, scentless Matricaria perforata
pondweed, curly-leaf Potamogeton crispus
rye, cereal Secale cereale
spikeweed Hemizonia pungens
St. Johnswort, common Hypericum perforatum
tansy, common Tanacetum vulgare
thistle, bull Cirsium vulgare
thistle, Canada Cirsium arvense
toadflax, yellow Linaria vulgaris
tree-of-heaven Ailanthus altissima
water lily, fragrant Nymphaea odorata
whitetop, hairy Cardaria pubescens
wormwood, absinth Artemisia absinthium))
absinth wormwood Artemisia absinthium
Austrian fieldcress Rorippa austriaca
black henbane Hyoscyamus niger
blackberry, evergreen Rubus laciniatus
blackberry, Himalayan Rubus armeniacus
blackgrass Alopecurus myosuroides
cereal rye Secale cereale
common barberry Berberis vulgaris
common catsear Hypochaeris radicata
common groundsel Senecio vulgaris
common St. Johnswort Hypericum perforatum
common tansy Tanacetum vulgare
common teasel Dipsacus fullonum
curly-leaf pondweed Potamogeton crispus
English ivy 4 cultivars only: Hedera hibernica 'Hibernica'
Hedera helix 'Baltica'
Hedera helix 'Pittsburgh'
Hedera helix 'Star'
field bindweed Convolvulus arvensis
fragrant water lily Nymphaea odorata
hairy whitetop Cardaria pubescens
hawkweed, common Hieracium lachenalii
hawkweed, polar Hieracium atratum
hawkweed, other nonnative species Hieracium spp., except species designated in the note in the left-hand column
Note:
This listing includes all species of Hieracium, except the following:
Species designated as Class A noxious weeds in WAC 16-750-005;
Species designated as Class B noxious weeds in WAC 16-750-011;
Native species designated below:
Canada hawkweed (H. canadense)
houndstongue hawkweed (H. cynoglossoides)
long-beaked hawkweed (H. longiberbe)
narrow-leaved hawkweed (H. umbellatum)
slender hawkweed (H. gracile)
western hawkweed (H. albertinum)
white-flowered hawkweed (H. albiflorum)
woolley-weed (H. scouleri)
hoary cress Cardaria draba
Japanese eelgrass (on commercially managed shellfish beds only) Zostera japonica

jointed goatgrass

Aegilops cylindrica

lawnweed

Soliva sessilis

lepyrodiclis

Lepyrodiclis holosteoides

longspine sandbur Cenchrus longispinus
old man's beard Clematis vitalba
oxeye daisy Leucanthemum vulgare
perennial sowthistle Sonchus arvensis ssp. arvensis
reed canarygrass Phalaris arundinacea
scentless mayweed Matricaria perforata
smoothseed alfalfa dodder Cuscuta approximata
spikeweed Hemizonia pungens
spiny cocklebur Xanthium spinosum
Swainsonpea Sphaerophysa salsula
thistle, bull Cirsium vulgare
thistle, Canada Cirsium arvense
tree-of-heaven Ailanthus altissima
white cockle Silene latifolia ssp. alba
wild carrot (except where commercially grown) Daucus carota
yellow flag iris Iris pseudacorus
yellow toadflax Linaria vulgaris

[Statutory Authority: Chapters 17.10 and 34.05 RCW. 12-01-050, 16-750-015, filed 12/15/11, effective 1/15/12; 10-24-037, 16-750-015, filed 11/22/10, effective 12/23/10; 09-01-071, 16-750-015, filed 12/15/08, effective 1/16/09; 07-24-023, 16-750-015, filed 11/28/07, effective 1/1/08; 06-24-056, 16-750-015, filed 12/4/06, effective 1/4/07; 05-01-012, 16-750-015, filed 12/2/04, effective 1/2/05. Statutory Authority: Chapter 17.10 RCW. 04-13-014, 16-750-015, filed 6/4/04, effective 7/5/04. Statutory Authority: Chapters 17.10 and 34.05 RCW. 03-24-012, 16-750-015, filed 11/20/03, effective 12/21/03; 03-04-001, 16-750-015, filed 1/22/03, effective 2/22/03. Statutory Authority: Chapter 17.10 RCW. 01-24-035, 16-750-015, filed 11/28/01, effective 12/29/01; 00-24-017, 16-750-015, filed 11/28/00, effective 1/2/01; 99-24-029, 16-750-015, filed 11/23/99, effective 1/3/00; 98-24-026, 16-750-015, filed 11/23/98, effective 1/2/99; 97-06-108, 16-750-015, filed 3/5/97, effective 4/5/97. Statutory Authority: RCW 17.10.080. 96-06-030, 16-750-015, filed 2/29/96, effective 3/31/96. Statutory Authority: Chapter 17.10 RCW. 95-06-002, 16-750-015, filed 2/16/95, effective 3/19/95; 94-01-076, 16-750-015, filed 12/10/93, effective 1/10/94; 93-01-004, 16-750-015, filed 12/2/92, effective 1/2/93; 91-24-072, 16-750-015, filed 12/2/91, effective 1/2/92; 91-01-016, 16-750-015, filed 12/7/90, effective 1/7/91; 90-01-004, 16-750-015, filed 12/7/89, effective 1/7/90; 88-24-002 (Order 26, Resolution No. 26), 16-750-015, filed 11/29/88. Statutory Authority: RCW 17.10.080. 88-07-016 (Order 22, Resolution No. 22), 16-750-015, filed 3/7/88.]