PDFWAC 16-750-015
State 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 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 |
[Statutory Authority: Chapters 17.10 and 34.05 RCW. WSR 23-23-168, § 16-750-015, filed 11/21/23, effective 1/1/24; WSR 22-01-040, § 16-750-015, filed 12/7/21, effective 1/1/22; WSR 20-24-098, § 16-750-015, filed 11/30/20, effective 1/1/21; WSR 17-24-035, § 16-750-015, filed 11/29/17, effective 1/1/18; WSR 15-24-078, § 16-750-015, filed 11/30/15, effective 12/31/15; WSR 14-24-103, § 16-750-015, filed 12/2/14, effective 1/2/15; WSR 14-02-072, § 16-750-015, filed 12/30/13, effective 1/30/14; WSR 13-01-038, § 16-750-015, filed 12/12/12, effective 1/12/13; WSR 12-01-050, § 16-750-015, filed 12/15/11, effective 1/15/12; WSR 10-24-037, § 16-750-015, filed 11/22/10, effective 12/23/10; WSR 09-01-071, § 16-750-015, filed 12/15/08, effective 1/16/09; WSR 07-24-023, § 16-750-015, filed 11/28/07, effective 1/1/08; WSR 06-24-056, § 16-750-015, filed 12/4/06, effective 1/4/07; WSR 05-01-012, § 16-750-015, filed 12/2/04, effective 1/2/05. Statutory Authority: Chapter 17.10 RCW. WSR 04-13-014, § 16-750-015, filed 6/4/04, effective 7/5/04. Statutory Authority: Chapters 17.10 and 34.05 RCW. WSR 03-24-012, § 16-750-015, filed 11/20/03, effective 12/21/03; WSR 03-04-001, § 16-750-015, filed 1/22/03, effective 2/22/03. Statutory Authority: Chapter 17.10 RCW. WSR 01-24-035, § 16-750-015, filed 11/28/01, effective 12/29/01; WSR 00-24-017, § 16-750-015, filed 11/28/00, effective 1/2/01; WSR 99-24-029, § 16-750-015, filed 11/23/99, effective 1/3/00; WSR 98-24-026, § 16-750-015, filed 11/23/98, effective 1/2/99; WSR 97-06-108, § 16-750-015, filed 3/5/97, effective 4/5/97. Statutory Authority: RCW 17.10.080. WSR 96-06-030, § 16-750-015, filed 2/29/96, effective 3/31/96. Statutory Authority: Chapter 17.10 RCW. WSR 95-06-002, § 16-750-015, filed 2/16/95, effective 3/19/95; WSR 94-01-076, § 16-750-015, filed 12/10/93, effective 1/10/94; WSR 93-01-004, § 16-750-015, filed 12/2/92, effective 1/2/93; WSR 91-24-072, § 16-750-015, filed 12/2/91, effective 1/2/92; WSR 91-01-016, § 16-750-015, filed 12/7/90, effective 1/7/91; WSR 90-01-004, § 16-750-015, filed 12/7/89, effective 1/7/90; WSR 88-24-002 (Order 26, Resolution No. 26), § 16-750-015, filed 11/29/88. Statutory Authority: RCW 17.10.080. WSR 88-07-016 (Order 22, Resolution No. 22), § 16-750-015, filed 3/7/88.]