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NRCS Invasive Species Policy
Invasive Species Executive Order 13112
Washington State-listed Noxious Weeds
156 records returned
Click on an accepted name below to view its PLANTS Profile with more information, and
web links if available. Noxious weeds that are synonyms retain their noxious status, and are indented beneath the current PLANTS accepted name.
Washington Administrative Code. 2005.
Noxious weed control, Chapter 16-752
(24 May 2006).
State of Washington.
Washington Administrative Code. 2005.
State noxious weed list and schedule of monetary penalties, Chapter 16-750
(24 May 2006).
State of Washington.
| Symbol |
Scientific Name |
Noxious Common Name |
State Noxious Status† |
Native Status* |
| CRHE5 |
Crassula helmsii A. Berger |
Australian swamp stonecrop |
WAWQ |
|
| GLDI |
Glossostigma diandrum (L.) Kunze [excluded] |
mud mat |
WAWQ |
|
| HIERA |
Hieracium L.1 |
hawkweed |
CCW |
|
| HIAT2 |
Hieracium atratum Fr. |
polar hawkweed |
CBW |
|
| LAMA15 |
Lagarosiphon major (Ridley) Moss |
African elodea |
WAWQ |
|
| TRBI5 |
Trapa bicornis Osbeck |
water caltrap, devil's pod, bat nut |
WAWQ |
|
| POBO10 |
Polygonum ×bohemicum (J. Chrtek & Chrtkovß) Zika & Jacobson [cuspidatum × sachalinense] |
Bohemian knotweed |
CBW, NWSPQ |
CAN (I) |
| AECY |
Aegilops cylindrica Host |
jointed goatgrass |
CCW |
L48 (I) |
| ALMA12 |
Alhagi maurorum Medik. |
camelthorn |
CBW |
L48 (I) |
| BRAL4 |
Bryonia alba L. |
white bryony |
CBW |
L48 (I) |
| CATE2 |
Carduus tenuiflorus W. Curtis |
slenderflower thistle |
NWSPQ, CAW |
L48 (I) |
| CRVU2 |
Crupina vulgaris Cass. |
common crupina |
NWSPQ, CAW |
L48 (I) |
| EUOB4 |
Euphorbia oblongata Griseb. |
eggleaf spurge |
NWSPQ, CAW |
L48 (I) |
| GLCL3 |
Glossostigma cleistanthum W.R. Barker |
mud mat |
WAWQ |
L48 (I) |
| HEHI12 |
Hedera hibernica (G. Kirchn.) Bean2 |
English ivy |
CCW |
L48 (I) |
| HIGL3 |
Hieracium glomeratum Froel. |
queen-devil hawkweed |
CBW |
L48 (I) |
| HYVE3 |
Hydrilla verticillata (L. f.) Royle |
hydrilla |
CAW, WAWQ |
L48 (I) |
| LEHO7 |
Lepyrodiclis holosteoides (C.A. Mey.) Fenzl ex Fisch. & C.A. Mey. |
lepyrodiclis |
CBW |
L48 (I) |
| LUGRH |
Ludwigia grandiflora (Michx.) Greuter & Burdet ssp. hexapetala (Hook. & Arn.) G.L. Nesom & Kartesz |
|
|
L48 (I) |
| LUHE5 |
Ludwigia hexapetala (Hook. & Arn.) Zardini, Gu & P.H. Raven |
water primrose |
WAWQ |
|
| LYVI3 |
Lythrum virgatum L.3 |
purple loosestrife, wand loosestrife |
CBW, Q |
L48 (I) |
| MUKE |
Murdannia keisak (Hassk.) Hand.-Maz. |
marsh dew flower, Asian spiderwort |
WAWQ |
L48 (I) |
| SAAE |
Salvia aethiopis L. |
Mediterranean sage |
CAW, NWSPQ |
L48 (I) |
| SPDE2 |
Spartina densiflora Brongn. |
dense-flowered cordgrass, denseflower cordgrass |
CAW, WAWQ |
L48 (I) |
| TARA |
Tamarix ramosissima Ledeb. |
saltcedar |
CBW, NWSPQ |
L48 (I) |
| ZYFA |
Zygophyllum fabago L. |
Syrian bean-caper, Syrian beancaper |
NWSPQ, CAW |
L48 (I) |
| SILAA3 |
Silene latifolia Poir. ssp. alba (Mill.) Greuter & Burdet |
white cockle |
CCW |
L48 (I), AK (I) |
| ALPE4 |
Alliaria petiolata (M. Bieb.) Cavara & Grande |
garlic mustard |
CAW, NWSPQ |
L48 (I), AK (I), CAN (I) |
| MYSP2 |
Myriophyllum spicatum L. |
Eurasian watermilfoil |
CBW, WAWQ |
L48 (I), AK (I), CAN (I) |
| POSA4 |
Polygonum sachalinense F. Schmidt ex Maxim. |
giant knotweed |
CBW, NWSPQ |
L48 (I), AK (I), CAN (I) |
| TRPE21 |
Tripleurospermum perforatum (Mérat) M. Lainz |
|
|
L48 (I), AK (I), CAN (I), GL (I) |
| MAPE2 |
Matricaria perforata Mérat |
scentless mayweed |
CCW |
|
| CIAR4 |
Cirsium arvense (L.) Scop. |
Canada thistle |
CCW |
L48 (I), AK (I), CAN (I), GL (I), SPM (I) |
| LIVU2 |
Linaria vulgaris Mill. |
yellow toadflax |
CCW |
L48 (I), AK (I), CAN (I), GL (I), SPM (I) |
| HIAU |
Hieracium aurantiacum L. |
orange hawkweed, orange hawkweed, orange paintbrush, red daisy flameweed, devil's weed, grim-the-collier |
CBW, NWSPQ |
L48 (I), AK (I), CAN (I), SPM (I) |
| HIPI |
Hieracium pilosella L. |
mouseear hawkweed |
CBW, NWSPQ |
L48 (I), AK (I), CAN (I), SPM (I) |
| POCU6 |
Polygonum cuspidatum Siebold & Zucc. |
Japanese knotweed |
NWSPQ, CBW |
L48 (I), AK (I), CAN (I), SPM (I) |
| SECE |
Secale cereale L. |
cereal rye |
CCW |
L48 (I), AK (I), CAN (W), GL (W) |
| ECVU |
Echium vulgare L. |
blueweed, blueweed, blue thistle, blue devil, viper's bugloss, snake flower |
CBW, NWSPQ |
L48 (I), AK (I), CAN (W), SPM (I) |
| CYSC4 |
Cytisus scoparius (L.) Link |
Scotch broom |
CBW, NWSPQ |
L48 (I), AK (I), HI (I), CAN (I) |
| SEVU |
Senecio vulgaris L. |
common groundsel |
CCW |
L48 (I), AK (I), HI (I), CAN (I), GL (I), SPM (I) |
| CIVU |
Cirsium vulgare (Savi) Ten. |
bull thistle |
CCW |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
| HYRA3 |
Hypochaeris radicata L. |
common catsear |
CBW |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
| LEVU |
Leucanthemum vulgare Lam. |
ox-eye daisy, oxeye daisy, white daisy, whiteweed, field daisy, marguerite, poorland flower |
NWSPQ, CBW |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
| TAVU |
Tanacetum vulgare L. |
common tansy |
CCW |
L48 (I), AK (I), HI (I), CAN (I), SPM (I) |
| ABTH |
Abutilon theophrasti Medik. |
velvetleaf |
CAW, NWSPQ |
L48 (I), CAN (I) |
| ACRE3 |
Acroptilon repens (L.) DC. |
Russian knapweed |
CBW |
L48 (I), CAN (I) |
| ANAR16 |
Anchusa arvensis (L.) M. Bieb. |
annual bugloss |
CBW |
L48 (I), CAN (I) |
| ANOF |
Anchusa officinalis L. |
common bugloss, common bugloss, alkanet, anchusa |
CBW, NWSPQ |
L48 (I), CAN (I) |
| ARAB3 |
Artemisia absinthium L. |
absinth wormwood |
CCW |
L48 (I), CAN (I) |
| BASC5 |
Bassia scoparia (L.) A.J. Scott |
|
|
L48 (I), CAN (I) |
| KOSC |
Kochia scoparia (L.) Schrad. |
kochia, summer-cyprus, burning-bush, fireball, Mexican fireweed |
NWSPQ |
|
| BUUM |
Butomus umbellatus L. |
flowering rush |
WAWQ |
L48 (I), CAN (I) |
| CADR |
Cardaria draba (L.) Desv. |
hoary cress |
CCW |
L48 (I), CAN (I) |
| CAPU6 |
Cardaria pubescens (C.A. Mey.) Jarmolenko |
hairy whitetop |
CCW |
L48 (I), CAN (I) |
| CAAC |
Carduus acanthoides L. |
plumeless thistle |
NWSPQ, CBW |
L48 (I), CAN (I) |
| CANU4 |
Carduus nutans L. |
musk thistle, musk thistle, nodding thistle |
CBW, NWSPQ |
L48 (I), CAN (I) |
| CECA2 |
Centaurea calcitrapa L. |
purple starthistle |
CAW, NWSPQ |
L48 (I), CAN (I) |
| CEDI3 |
Centaurea diffusa Lam. |
diffuse knapweed |
NWSPQ, CBW |
L48 (I), CAN (I) |
| CEMA9 |
Centaurea macrocephala Puschk. ex Willd. |
bighead knapweed |
CAW, NWSPQ |
L48 (I), CAN (I) |
| CENI3 |
Centaurea nigrescens Willd. |
Vochin knapweed |
CAW, NWSPQ |
L48 (I), CAN (I) |
| CESO3 |
Centaurea solstitialis L. |
yellow starthistle |
CBW |
L48 (I), CAN (I) |
| CHMI |
Chaenorhinum minus (L.) Lange |
dwarf snapdragon |
NWSPQ |
L48 (I), CAN (I) |
| CHJU |
Chondrilla juncea L. |
rush skeletonweed |
CBW |
L48 (I), CAN (I) |
| CLVI6 |
Clematis vitalba L. |
old man's beard |
CCW |
L48 (I), CAN (I) |
| COMA2 |
Conium maculatum L. |
poison hemlock |
CCW |
L48 (I), CAN (I) |
| CUAP2 |
Cuscuta approximata Bab. |
smoothseed alfalfa dodder |
CCW |
L48 (I), CAN (I) |
| CYOF |
Cynoglossum officinale L. |
houndstongue |
CBW |
L48 (I), CAN (I) |
| EPHI |
Epilobium hirsutum L. |
hairy willow herb |
WAWQ |
L48 (I), CAN (I) |
| EUES |
Euphorbia esula L. |
leafy spurge |
CBW, NWSPQ |
L48 (I), CAN (I) |
| GAOF |
Galega officinalis L. |
goatsrue |
CAW, NWSPQ |
L48 (I), CAN (I) |
| GYPA |
Gypsophila paniculata L. |
babysbreath |
CCW |
L48 (I), CAN (I) |
| HEMA17 |
Heracleum mantegazzianum Sommier & Levier |
giant hogweed, giant hogweed, giant cow parsnip |
NWSPQ, CAW |
L48 (I), CAN (I) |
| HITR |
Hibiscus trionum L. |
Venice mallow, flower-of-an-hour, bladder ketmia, modesty, shoo-fly |
NWSPQ |
L48 (I), CAN (I) |
| HICA10 |
Hieracium caespitosum Dumort. |
yellow hawkweed, yellow hawkweed, yellow paintbrush, devil's paintbrush, yellow devil, field hawkweed, king devil |
NWSPQ, CBW |
L48 (I), CAN (I) |
| HYMO6 |
Hydrocharis morsus-ranae L. |
European frog-bit |
WAWQ |
L48 (I), CAN (I) |
| HYNI |
Hyoscyamus niger L. |
black henbane |
CCW |
L48 (I), CAN (I) |
| IMGL |
Impatiens glandulifera Royle |
policeman's helmet |
CBW, NWSPQ |
L48 (I), CAN (I) |
| IRPS |
Iris pseudacorus L. |
iris, yellow flag iris |
CCW |
L48 (I), CAN (I) |
| LELA2 |
Lepidium latifolium L. |
perennial pepperweed |
CBW, NWSPQ |
L48 (I), CAN (I) |
| LIDAD |
Linaria dalmatica (L.) Mill. ssp. dalmatica |
Dalmatian toadflax |
CBW |
L48 (I), CAN (I) |
| LIGED |
Linaria genistifolia (L.) Mill. ssp. dalmatica (L.) Maire & Petitm. |
Dalmatian toadflax |
NWSPQ |
|
| LYVU |
Lysimachia vulgaris L. |
garden loosestrife |
WAWQ, CBW |
L48 (I), CAN (I) |
| NAMI |
Najas minor All. |
slender-leaved naiad, brittle naiad |
WAWQ |
L48 (I), CAN (I) |
| NYPE |
Nymphoides peltata (S.G. Gmel.) Kuntze |
yellow floating heart |
CBW, WAWQ |
L48 (I), CAN (I) |
| POCR3 |
Potamogeton crispus L. |
crisped pondweed, curly pondweed |
CCW |
L48 (I), CAN (I) |
| PORE5 |
Potentilla recta L. |
sulfur cinquefoil |
CBW |
L48 (I), CAN (I) |
| ROAU |
Rorippa austriaca (Crantz) Besser |
Austrian fieldcress |
CBW |
L48 (I), CAN (I) |
| SAPR2 |
Salvia pratensis L. |
meadow clary |
CAW, NWSPQ |
L48 (I), CAN (I) |
| SIMA3 |
Silybum marianum (L.) Gaertn. |
milk thistle |
NWSPQ, CAW |
L48 (I), CAN (I) |
| SPAN5 |
Spartina anglica C.E. Hubbard |
common cordgrass |
WAWQ, CBW |
L48 (I), CAN (I) |
| SPSA3 |
Sphaerophysa salsula (Pall.) DC. |
swainsonpea |
CBW |
L48 (I), CAN (I) |
| TRNA |
Trapa natans L. |
water chestnut, bull nut |
WAWQ |
L48 (I), CAN (I) |
| XASP2 |
Xanthium spinosum L. |
spiny cocklebur |
CCW |
L48 (I), CAN (I) |
| ANSY |
Anthriscus sylvestris (L.) Hoffm. |
wild chervil |
NWSPQ, CBW |
L48 (I), CAN (I), GL (I) |
| CEJA |
Centaurea jacea L. |
brown knapweed, brown knapweed, rayed knapweed, brown centaury, horse-knobs, hardheads |
CBW, NWSPQ |
L48 (I), CAN (I), GL (I) |
| CENI2 |
Centaurea nigra L. |
black knapweed |
NWSPQ, CBW |
L48 (I), CAN (I), SPM (I) |
| HIFL3 |
Hieracium ×floribundum Wimm. & Grab. (pro sp.) [caespitosum × lactucella] |
yellow devil hawkweed |
NWSPQ, CAW |
L48 (I), CAN (I), SPM (I) |
| LYSA2 |
Lythrum salicaria L.3 |
purple loosestrife |
Q, CBW |
L48 (I), CAN (I), SPM (I) |
| POPO5 |
Polygonum polystachyum Wall. ex Meisn. |
Himalayan knotweed |
CBW, NWSPQ |
L48 (I), CAN (I), SPM (I) |
| SEJA |
Senecio jacobaea L.4 |
tansy ragwort |
NWSPQ, CBW, Q |
L48 (I), CAN (I), SPM (I) |
| SOARA2 |
Sonchus arvensis L. ssp. arvensis |
perennial sowthistle |
CBW |
L48 (I), CAN (I), SPM (I) |
| ALMY |
Alopecurus myosuroides Huds. |
blackgrass |
CBW |
L48 (I), CAN (N) |
| THPA7 |
Thymelaea passerina (L.) Coss. & Germ. |
spurge flax |
NWSPQ, CAW |
L48 (I), CAN (N) |
| TOAR |
Torilis arvensis (Huds.) Link |
hedgeparsley |
CBW, NWSPQ |
L48 (I), CAN (N) |
| ISTI |
Isatis tinctoria L. |
dyers woad, dyers' woad |
NWSPQ, CAW |
L48 (I), CAN (W) |
| ONAC |
Onopordum acanthium L. |
Scotch thistle |
CBW, NWSPQ |
L48 (I), CAN (W) |
| SASC2 |
Salvia sclarea L. |
clary sage |
NWSPQ, CAW |
L48 (I), CAN (W) |
| CAPY2 |
Carduus pycnocephalus L. |
Italian thistle |
CAW, NWSPQ |
L48 (I), HI (I) |
| PUMOL |
Pueraria montana (Lour.) Merr. var. lobata (Willd.) Maesen & S. Almeida |
kudzu |
NWSPQ, CAW |
L48 (I), HI (I) |
| SPJU2 |
Spartium junceum L. |
Spanish broom |
CAW, NWSPQ |
L48 (I), HI (I) |
| CESTM |
Centaurea stoebe L. ssp. micranthos (Gugler) Hayek |
|
|
L48 (I), HI (I), CAN (I) |
| CEBI2 |
Centaurea biebersteinii DC. |
spotted knapweed |
NWSPQ |
|
| COAR4 |
Convolvulus arvensis L. |
field bindweed |
CCW |
L48 (I), HI (I), CAN (I) |
| HEHE |
Hedera helix L.5 |
English ivy |
CCW |
L48 (I), HI (I), CAN (I) |
| MYAQ2 |
Myriophyllum aquaticum (Vell.) Verdc. |
parrotfeather |
WAWQ, CBW |
L48 (I), HI (I), CAN (I) |
| SOSE2 |
Soliva sessilis Ruiz & Pav. |
lawnweed |
NWSPQ, CAW |
L48 (I), HI (I), CAN (I) |
| ULEU |
Ulex europaeus L. |
gorse, gorse, furze |
CBW, NWSPQ |
L48 (I), HI (I), CAN (I) |
| HYPE |
Hypericum perforatum L. |
common St. Johnswort |
CCW |
L48 (I), HI (I), CAN (I), SPM (I) |
| TRTE |
Tribulus terrestris L. |
puncturevine |
CBW |
L48 (I), HI (I), CAN (W) |
| BUDA2 |
Buddleja davidii Franch. |
butterfly bush |
CCW |
L48 (I), HI (I), PR (I), CAN (I) |
| SOHA |
Sorghum halepense (L.) Pers. |
johnsongrass |
NWSPQ, CAW |
L48 (I), HI (I), PR (I), CAN (I) |
| EGDE |
Egeria densa Planch. |
Brazilian elodea |
CBW, WAWQ |
L48 (I), HI (I), PR (I), CAN (W) |
| CYRO |
Cyperus rotundus L. |
purple nutsedge |
Q |
L48 (I), HI (I), PR (I), VI (I) |
| DACA6 |
Daucus carota L. |
wild carrot, wild carrot, Queen Anne's lace |
NWSPQ, CBW |
L48 (I), PR (I), CAN (I), SPM (I) |
| CEPUP6 |
Centromadia pungens (Hook. & Arn.) Greene ssp. pungens |
|
|
L48 (N) |
| HEPU5 |
Hemizonia pungens (Hook. & Arn.) Torr. & A. Gray |
spikeweed |
CCW |
|
| HECI |
Helianthus ciliaris DC. |
Texas blueweed |
NWSPQ, CAW |
L48 (N) |
| HILA4 |
Hieracium laevigatum Willd. |
smooth hawkweed |
CBW |
L48 (N) |
| UTIN |
Utricularia inflata Walter |
swollen bladderwort |
WAWQ |
L48 (N) |
| PHAR3 |
Phalaris arundinacea L. |
reed canarygrass |
CCW |
L48 (N), AK (I), CAN (N), SPM (I) |
| NYOD |
Nymphaea odorata Aiton |
fragrant water lily |
CCW |
L48 (N), AK (I), PR (N), CAN (N) |
| PRLO |
Proboscidea louisianica (Mill.) Thell. |
unicorn-plant |
NWSPQ |
L48 (N), CAN (I) |
| AMFR |
Amorpha fruticosa L. |
indigobush, indigobush, lead plant |
NWSPQ, CBW |
L48 (N), CAN (N) |
| CACA |
Cabomba caroliniana A. Gray |
fanwort |
CBW, WAWQ |
L48 (N), CAN (N) |
| CELO3 |
Cenchrus longispinus (Hack.) Fernald |
longspine sandbur |
CBW |
L48 (N), CAN (N) |
| MINY |
Mirabilis nyctaginea (Michx.) MacMill. |
wild four o'clock, wild four o'clock, umbrella-wort |
CAW, NWSPQ |
L48 (N), CAN (N) |
| SAGR |
Sagittaria graminea Michx. |
grass-leaved arrowhead |
CBW, WAWQ |
L48 (N), CAN (N) |
| SPAL |
Spartina alterniflora Loisel. |
smooth cordgrass |
CBW, WAWQ |
L48 (N), CAN (N) |
| SORO |
Solanum rostratum Dunal |
buffalobur, buffaloburr |
CAW, NWSPQ |
L48 (N), CAN (W) |
| SOEL |
Solanum elaeagnifolium Cav. |
silverleaf nightshade |
CAW, NWSPQ |
L48 (N), HI (I), PR (N) |
| PHAU7 |
Phragmites australis (Cav.) Trin. ex Steud.6 |
common reed |
CCW |
L48 (N), HI (I), PR (N), CAN (N) |
| SPPA |
Spartina patens (Aiton) Muhl. |
salt meadow cordgrass |
CAW, WAWQ |
L48 (N), PR (N), VI (N), CAN (N) |
| GERO |
Geranium robertianum L. |
herb Robert |
CBW |
L48 (NI), AK (I), CAN (N), SPM (N) |
| PIHI |
Picris hieracioides L. |
hawkweed oxtongue |
CBW |
L48 (NI), AK (N), HI (I), CAN (I) |
| CYES |
Cyperus esculentus L. |
yellow nutsedge |
CBW, Q |
L48 (NI), HI (I), PR (I), VI (I), CAN (I) |
| †Code | Noxious Status |
|---|
| CAW |
Class A noxious weed |
| CBW |
Class B noxious weed |
| CCW |
Class C noxious weed |
| NWSPQ |
Noxious weed seed and plant quarantine |
| Q |
Quarantine |
| WAWQ |
Wetland and aquatic weed quarantine |
| *Code | Native Status |
|---|
| I |
Introduced |
| N |
Native |
| NI |
Native and Introduced |
| W |
Waif |
| *Code | Native Status Jursdiction |
|---|
| L48 |
Lower 48 States |
| AK |
Alaska |
| HI |
Hawaii |
| PR |
Puerto Rico |
| VI |
Virgin Islands |
| CAN |
Canada |
| GL |
Greenland |
| SPM |
St. Pierre and Miquelon |
1 non-native Hieracium species except those listed as Class A or Class B
2 only cultivar 'Hibernica'
3 any hybrid cross
4 in hay
5 only cultivars 'Baltica', 'Pittsburgh', 'Star'
6 non-native genotypes
Additional information about noxious plants in this state can be found at:
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