Washington Noxious Weeds

Washington Administrative Code. 2005. State noxious weed list and schedule of monetary penalties, Chapter 16-750. State of Washington.

Subject Name	Scientific Name	Family	Order
kudzu	Pueraria montana var. lobata (Willd.) Maesen & S. Almeida	Fabaceae (Leguminosae)	Fabales
Canada thistle	Cirsium arvense (L.) Scop.	Asteraceae	Asterales
garlic mustard	Alliaria petiolata (Bieb.) Cavara & Grande	Brassicaceae	Capparales
musk thistle	Carduus nutans L.	Asteraceae	Asterales
spotted knapweed	Centaurea stoebe ssp. micranthos (Gugler) Hayek	Asteraceae	Asterales
yellow nutsedge	Cyperus esculentus L.	Cyperaceae	Cyperales
Brazilian waterweed	Egeria densa Planch.	Hydrocharitaceae	Hydrocharitales
English ivy	Hedera helix L.	Araliaceae	Apiales
hydrilla	Hydrilla verticillata (L. f.) Royle	Hydrocharitaceae	Hydrocharitales
purple loosestrife	Lythrum salicaria L.	Lythraceae	Myrtales
marsh dayflower	Murdannia keisak (Hassk.) Hand.-Maz.	Commelinaceae	Commelinales
parrot feather milfoil	Myriophyllum aquaticum (Vell.) Verdc.	Haloragaceae	Haloragales
Eurasian watermilfoil	Myriophyllum spicatum Linnaeus	Haloragaceae	Haloragales
brittleleaf naiad	Najas minor All.	Najadaceae	Najadales
common reed	Phragmites australis (Cav.) Trin. ex Steud.	Poaceae	Cyperales
johnsongrass	Sorghum halepense (L.) Pers.	Poaceae	Cyperales
bull thistle	Cirsium vulgare (Savi) Ten.	Asteraceae	Asterales
spiny plumeless thistle	Carduus acanthoides L.	Asteraceae	Asterales
leafy spurge	Euphorbia esula L.	Euphorbiaceae	Euphorbiales
Japanese knotweed	Fallopia japonica Sieb. & Zucc.	Polygonaceae	Polygonales
water-chestnut	Trapa natans L.	Trapaceae	Myrtales
yellow toadflax	Linaria vulgaris P. Mill.	Scrophulariaceae	Scrophulariales
puncturevine	Tribulus terrestris L.	Zygophyllaceae	Sapindales
silverleaf nightshade	Solanum elaeagnifolium Cavanaugh	Solanaceae	Solanales
field bindweed	Convolvulus arvensis L.	Convolvulaceae	Solanales
gorse	Ulex europaeus L.	Fabaceae (Leguminosae)	Fabales
Mediterranean sage	Salvia aethiopis L.	Lamiaceae	Lamiales
poison-hemlock	Conium maculatum L.	Apiaceae	Apiales
Russian knapweed	Rhaponticum repens (L.) Hidalgo	Asteraceae	Asterales
yellow starthistle	Centaurea solstitialis L.	Asteraceae	Asterales
rush skeletonweed	Chondrilla juncea L.	Asteraceae	Asterales
Scotch broom	Cytisus scoparius (L.) Link	Fabaceae (Leguminosae)	Fabales
common St. Johnswort	Hypericum perforatum L.	Clusiaceae	Theales
common crupina	Crupina vulgaris Cass.	Asteraceae	Asterales
tansy ragwort	Senecio jacobaea L.	Asteraceae	Asterales
slenderflower thistle	Carduus tenuiflorus W. Curtis	Asteraceae	Asterales
mouseear hawkweed	Hieracium pilosella L.	Asteraceae	Asterales
orange hawkweed	Hieracium aurantiacum L.	Asteraceae	Asterales
meadow hawkweed	Hieracium caespitosum Dumort.	Asteraceae	Asterales
sulfur cinquefoil	Potentilla recta L.	Rosaceae	Rosales
Scotch thistle	Onopordum acanthium L.	Asteraceae	Asterales
dalmatian toadflax	Linaria dalmatica ssp. dalmatica (L.) P. Mill.	Scrophulariaceae	Scrophulariales
Italian plumeless thistle	Carduus pycnocephalus L.	Asteraceae	Asterales
blessed milkthistle	Silybum marianum (L.) Gaertn.	Asteraceae	Asterales
diffuse knapweed	Centaurea diffusa Lam.	Asteraceae	Asterales
goatsrue	Galega officinalis L.	Fabaceae (Leguminosae)	Fabales
giant hogweed	Heracleum mantegazzianum Sommier & Levier	Apiaceae	Apiales
Dyer's woad	Isatis tinctoria L.	Brassicaceae	Capparales
oxygen weed	Lagarosiphon major (Ridley) Moss	Hydrocharitaceae	Hydrocharitales
velvetleaf	Abutilon theophrasti Medik	Malvaceae	Malvales
jointed goatgrass	Aegilops cylindrica Host	Poaceae	Cyperales
camelthorn	Alhagi maurorum Medik	Fabaceae (Leguminosae)	Fabales
slender meadow foxtail	Alopecurus myosuroides Huds.	Poaceae	Cyperales
indigobush	Amorpha fruticosa L.	Fabaceae (Leguminosae)	Fabales
small bugloss	Anchusa arvensis (L.) Bieb	Boraginaceae	Lamiales
common bugloss	Anchusa officinalis L.	Boraginaceae	Lamiales
wild chervil	Anthriscus sylvestris (L.) Hoffmann	Apiaceae	Apiales
absinth wormwood	Artemisia absinthium L.	Asteraceae	Asterales
hoary alyssum	Berteroa incana (L.) DC	Brassicaceae	Capparales
white bryony	Bryonia alba L.	Cucurbitaceae	Violales
flowering rush	Butomus umbellatus L.	Butomaceae	Alismatales
fanwort	Cabomba caroliniana L	Cabombaceae	Nymphaeales
hoary cress	Lepidium draba (L.) Desv	Brassicaceae	Capparales
hairy whitetop	Cardaria pubescens (C.A. Mey.)	Brassicaceae	Capparales
purple starthistle	Centaurea calcitrapa L.	Asteraceae	Asterales
brown knapweed	Centaurea jacea L.	Asteraceae	Asterales
longspine sandbur	Cenchrus longispinus (Hack.) Fern	Poaceae	Cyperales
bighead knapweed	Centaurea macrocephala Puschk. ex Willd.	Asteraceae	Asterales
black knapweed	Centaurea nigra L.	Asteraceae	Asterales
alpine knapweed	Centaurea nigrescens Willd	Asteraceae	Asterales
dwarf snapdragon	Chaenorhinum minus (L.) Lange	Scrophulariaceae	Scrophulariales
swamp stonecrop	Crassula helmsii A. Berger	Crassulaceae	Rosales
smallseed alfalfa dodder	Cuscuta approximata Bab.	Cuscutaceae	Solanales
houndstongue	Cynoglossum officinale L.	Boraginaceae	Lamiales
purple nutsedge	Cyperus rotundus L.	Cyperaceae	Cyperales
Queen Anne's lace, wild carrot	Daucus carota L.	Apiaceae	Apiales
spurgelaurel	Daphne laureola L.	Thymelaeaceae	Myrtales
blueweed	Echium vulgare L.	Boraginaceae	Lamiales
hairy willowherb	Epilobium hirsutum L.	Onagraceae	Myrtales
myrtle spurge	Euphorbia myrsinites L	Euphorbiaceae	Euphorbiales
eggleaf spurge	Euphorbia oblongata Griseb	Euphorbiaceae	Euphorbiales
fennel	Foeniculum vulgare P. Mill.	Apiaceae	Apiales
babysbreath	Gypsophila paniculata L	Caryophyllaceae	Caryophyllales
Texas blueweed	Helianthus ciliaris DC.	Asteraceae	Asterales
common tarweed	Centromadia pungens ssp. pungens (Hook. & Arn.) Greene	Asteraceae	Asterales
Venice mallow	Hibiscus trionum L.	Malvaceae	Malvales
black henbane	Hyoscyamus niger L.	Solanaceae	Solanales
hairy cat's ear	Hypochaeris radicata L.	Asteraceae	Asterales
yellowflag iris	Iris pseudacorus L.	Iridaceae	Liliales
Mexican fireweed	Kochia scoparia (L.) A.J. Scott	Chenopodiaceae	Caryophyllales
lepyrodiclis	Lepyrodiclis holosteoides (C.A. Mey.) Fenzl ex Fisch. & C.A. Mey.	Caryophyllaceae	Caryophyllales
perennial pepperweed	Lepidium latifolium L.	Brassicaceae	Capparales
oxeye daisy	Leucanthemum vulgare Lam.	Asteraceae	Asterales
creeping waterprimrose	Ludwigia peploides (Kunth) Raven	Onagraceae	Myrtales
European wand loosestrife	Lythrum virgatum L.	Lythraceae	Myrtales
garden loosestrife	Lysimachia vulgaris L.	Primulaceae	Primulales
wild four-o'clock	Mirabilis nyctaginea (Michx.) MacM.	Nyctaginaceae	Caryophyllales
reed canarygrass	Phalaris arundinacea L.	Poaceae	Cyperales
hawkweed oxtongue	Picris hieracioides L.	Asteraceae	Asterales
curlyleaf pondweed	Potamogeton crispus L.	Potamogetonaceae	Najadales
cultivated knotweed	Persicaria wallichii Greuter & Burdet	Polygonaceae	Polygonales
Sakhalin knotweed	Fallopia sachalinensis F. Schmidt ex Maxim.	Polygonaceae	Polygonales
devil's-claw	Proboscidea louisianica (P. Mill.) Thellung	Pedaliaceae	Scrophulariales
Austrian fieldcress	Rorippa austriaca (Crantz) Bess.	Brassicaceae	Capparales
Himalaya blackberry	Rubus armeniacus Focke	Rosaceae	Rosales
cutleaf blackberry	Rubus laciniatus Willd.	Rosaceae	Rosales
grassy arrowhead	Sagittaria graminea Michx.	Alismataceae	Alismatales
ricefield bulrush	Schoenoplectus mucronatus (L.) Palla	Cyperaceae	Cyperales
common groundsel	Senecio vulgaris L.	Asteraceae	Asterales
bladder campion	Silene latifolia ssp. alba (Mill.) Greuter & Burdet	Caryophyllaceae	Caryophyllales
field sowthistle	Sonchus arvensis ssp. arvensis L.	Asteraceae	Asterales
buffalobur	Solanum rostratum Dunal	Solanaceae	Solanales
lawn burweed	Soliva sessilis Ruiz & Pavón	Asteraceae	Asterales
smooth cordgrass	Spartina alterniflora Loisel.	Poaceae	Cyperales
common cordgrass	Spartina anglica C.E. Hubbard	Poaceae	Cyperales
denseflower cordgrass	Spartina densiflora Brongn.	Poaceae	Cyperales
Spanish broom	Spartium junceum L.	Fabaceae (Leguminosae)	Fabales
saltmeadow cordgrass	Spartina patens (Ait.) Muhl.	Poaceae	Cyperales
swainsonpea	Sphaerophysa salsula (Pallas) DC.	Fabaceae (Leguminosae)	Fabales
saltcedar	Tamarix ramosissima Ledeb.	Tamaricaceae	Violales
common tansy	Tanacetum vulgare L.	Asteraceae	Asterales
hedgeparsley	Torilis arvensis (Huds.) Link	Apiaceae	Apiales
false chamomile	Tripleurospermum perforatum (Merat) M. Lainz	Asteraceae	Asterales
spiny cocklebur	Xanthium spinosum L.	Asteraceae	Asterales
Syrian beancaper	Zygophyllum fabago L.	Zygophyllaceae	Sapindales
butterflybush	Buddleja davidii Franch.	Buddlejaceae	Scrophulariales
herb-robert	Geranium robertianum L.	Geraniaceae	Geraniales
yellow devil hawkweed	Hieracium x floribundum Wimmer & Grab. [caespitosum x lactucella]	Asteraceae	Asterales
meadow sage	Salvia pratensis L.	Lamiaceae	Lamiales
Europe sage	Salvia sclarea L.	Lamiaceae	Lamiales
spurge flax	Thymelaea passerina (L.) Coss. & Germ.	Thymelaeaceae	Myrtales
fragrant waterlily	Nymphaea odorata Ait.	Nymphaeaceae	Nymphaeales
common frogbit	Hydrocharis morsus-ranae L.	Hydrocharitaceae	Hydrocharitales
ornamental jewelweed	Impatiens glandulifera Royle	Balsaminaceae	Geraniales
twoleaf watermilfoil	Myriophyllum heterophyllum Michx.	Haloragaceae	Haloragales
yellow floatingheart	Nymphoides peltata (Gmel.) Kuntze	Menyanthaceae	Solanales
perennial false-brome	Brachypodium sylvaticum (Huds.) Beauv.	Poaceae	Cyperales
evergreen clematis	Clematis vitalba L.	Ranunculaceae	Ranunculales
shining geranium	Geranium lucidum L.	Geraniaceae	Geraniales
yellow archangel	Lamium galeobdolon (L.) Crantz	Lamiaceae	Lamiales
mudmat	Glossostigma diandrum (L.) Kuntze	Scrophulariaceae	Scrophulariales
Bohemian knotweed	Fallopia x bohemica ( Chrtek & Chrtková ) J.P.Bailey	Polygonaceae	Polygonales
water primrose	Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) Nesom & Kartesz	Onagraceae	Myrtales
queen-devil hawkweed	Hieracium glomeratum Froel.	Asteraceae	Asterales
smooth hawkweed	Hieracium laevigatum	Asteraceae	Asterales
floating bladderwort	Utricularia inflata Walter	Lentibulariaceae	Scrophulariales
Atlantic Ivy	Hedera hibernica (Kirchn.) Bean.	Araliaceae	Apiales
common hawkweed	Hieracium lachenalii K.C. Gmel.	Asteraceae	Asterales
reed mannagrass	Glyceria maxima (Hartman) Holmb.	Poaceae	Cyperales
polar hawkweed	Hieracium atratum Fr.	Asteraceae	Asterales

Invasive.org - Center for Invasive Species and Ecosystem Health

Washington Noxious Weeds

150 Records

Partners

Center for Invasive Species and Ecosystem Health