[Filed March 25, 2025, 11:01 a.m., effective April 25, 2025]

Effective Date of Rule: Thirty-one days after filing.

Purpose: The Washington state noxious weed list provides the basis for noxious weed control efforts for county and district weed control boards, as well as other entities. This rule-making order amends WAC 16-750-015 proposed Class C addition of common holly, Ilex aquifolium, except where commercially grown.

Citation of Rules Affected by this Order: Amending WAC 16-750-015.

Statutory Authority for Adoption: Chapter 17.10 RCW.

Other Authority: Chapter 34.05 RCW.

Adopted under notice filed as WSR 25-04-113 on February 5, 2025.

Changes Other than Editing from Proposed to Adopted Version: The common name common holly was used along with the exception, for where commercially grown, to mitigate any potential impacts to commercial English holly growers.

Number of Sections Adopted in Order to Comply with Federal Statute: New 0, Amended 0, Repealed 0; Federal Rules or Standards: New 0, Amended 0, Repealed 0; or Recently Enacted State Statutes: New 0, Amended 0, Repealed 0.

Number of Sections Adopted at the Request of a Nongovernmental Entity: New 0, Amended 0, Repealed 0.

Number of Sections Adopted on the Agency's own Initiative: New 0, Amended 1, Repealed 0.

Number of Sections Adopted in Order to Clarify, Streamline, or Reform Agency Procedures: New 0, Amended 0, Repealed 0.

Number of Sections Adopted using Negotiated Rule Making: New 0, Amended 0, Repealed 0; Pilot Rule Making: New 0, Amended 0, Repealed 0; or Other Alternative Rule Making: New 0, Amended 0, Repealed 0.

Date Adopted: March 12, 2025.

AMENDATORY SECTION(Amending WSR 23-23-168, filed 11/21/23, effective 1/1/24)

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
beach grass, European, American, and hybrids	Ammophila arenaria, A. breviligulata, and A. arenaria x breviligulata
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 holly	Ilex aquifolium, except where commercially grown
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
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