USDA and NRCS Identifier NRCS Logo
 
Introduced, Invasive, and Noxious Plants

 

Oregon State-listed Noxious Weeds
273 records returned

Noxious weeds that are synonyms retain their noxious status, and are indented beneath the current PLANTS accepted name.

Oregon Administrative Rules. 2006. Quarantine; noxious weeds, Chapter 603-52-1200 (http://www.oregon.gov/ODA/PLANT/docs/pdf/603_052_1200.pdf, 24 May 2006). State of Oregon.

Oregon Department of Agriculture. 2006. Noxious weed policy and classification system (http://www.oregon.gov/ODA/PLANT/WEEDS/lists.shtml#Noxious_weed_policy___list, 24 May 2006). Oregon Department of Agriculture.

Symbol Scientific Name Noxious Common Name State Noxious Status† Native Status*
ABTH Abutilon theophrasti Medik. velvetleaf BDW, Q L48 (I), CAN (I)
ACNO7 Acaena novae-zelandiae Kirk L48 (I)
ACNO4 Acaena novae-zelandica Kirk, orth. var. biddy biddy Q
ACRE3 Acroptilon repens (L.) DC. Russian knapweed BDW, Q L48 (I), CAN (I)
AECY Aegilops cylindrica Host jointed goatgrass BDW, Q L48 (I)
AEGE Aegilops geniculata Roth L48 (I)
AEOV2 Aegilops ovata L. p.p. ovate goatgrass Q
AETR Aegilops triuncialis L. barbed goatgrass ADW, Q L48 (I)
AEGIN Aeginetia L. Q
AGAD2 Ageratina adenophora (Spreng.) R.M. King & H. Rob. crofton weed Q L48 (I), HI (I)
ALECT2 Alectra Thunb. Q (I)
ALMA12 Alhagi maurorum Medik. L48 (I)
ALPS3 Alhagi pseudalhagi (M. Bieb.) Desv. ex B. Keller & Schaparenko camelthorn Q
ALPE4 Alliaria petiolata (M. Bieb.) Cavara & Grande garlic mustard BDW, Q L48 (I), AK (I), CAN (I)
ALSE4 Alternanthera sessilis (L.) R. Br. ex DC. sessile joyweed Q (I), L48 (I), HI (I), PR (N), VI (N)
ALCO16 Alyssum corsicum Duby yellowtuft NW L48 (I)
ALMU Alyssum murale Waldst. & Kit. yellowtuft NW L48 (I), CAN (I)
AMAR2 Ambrosia artemisiifolia L. ragweed BDW, Q L48 (I,N), HI (I), CAN (N)
AMTO3 Ambrosia tomentosa Nutt. skeletonleaf bursage ADW, Q L48 (N)
ANOF Anchusa officinalis L. common bugloss BDW, Q L48 (I), CAN (I)
ASFI2 Asphodelus fistulosus L. onionweed Q L48 (I)
AVST Avena sterilis L. animated oat Q L48 (I), CAN (W)
AZPI Azolla pinnata R. Br. mosquito fern Q L48 (I)
BASC5 Bassia scoparia (L.) A.J. Scott L48 (I), CAN (I)
KOSC Kochia scoparia (L.) Schrad. kochia Q
BRSY Brachypodium sylvaticum (Huds.) P. Beauv. false brome BDW, Q L48 (I)
BUDA2 Buddleja davidii Franch.1 butterfly bush BDW, Q L48 (I), HI (I), PR (I), CAN (I)
CACH42 Cardaria chalepensis (L.) Hand.-Maz. L48 (I), CAN (I)
CACH10 Cardaria chalapensis (L.) Hand.-Maz., orth. var. lens-podded whitetop Q
CADR Cardaria draba (L.) Desv. whitetop, hoary cress BDW, Q L48 (I), CAN (I)
CAPU6 Cardaria pubescens (C.A. Mey.) Jarmolenko hairy whitetop BDW, Q L48 (I), CAN (I)
CAAC Carduus acanthoides L. plumeless thistle ADW, Q L48 (I), CAN (I)
CANU4 Carduus nutans L. musk thistle BDW, Q L48 (I), CAN (I)
CAPY2 Carduus pycnocephalus L. Italian thisle BDW, Q L48 (I), HI (I)
CATE2 Carduus tenuiflorus W. Curtis slender flowered thistle BDW, Q L48 (I)
CALA20 Carthamus lanatus L. woolly distaff thistle ADW, Q L48 (I), CAN (I)
CALAC3 Carthamus lanatus L. ssp. creticus (L.) Holmboe L48 (I), CAN (I)
CABA5 Carthamus baeticus (Boiss. & Reut.) Nyman smooth distaff thistle Q
CAOX6 Carthamus oxyacanthus M. Bieb. L48 (I)
CAOX2 Carthamus oxyacantha M. Bieb., orth. var. wild safflower Q
CATA5 Caulerpa taxifolia (Vahl) C. Agardh2 Q L48 (I)
CECA2 Centaurea calcitrapa L. purple starthistle ADW, Q L48 (I), CAN (I)
CEDI3 Centaurea diffusa Lam. diffuse knapweed BDW, Q L48 (I), CAN (I)
CEIB Centaurea iberica Trevir. ex Spreng. Iberian starthistle ADW, Q L48 (I)
CENI3 Centaurea nigrescens Willd. short fringed knapweed BDW, Q L48 (I), CAN (I)
CEPR2 Centaurea pratensis Thuill., non Salisb., nom. illeg. meadow knapweed Q
CESO3 Centaurea solstitialis L. yellow starthistle BDW, Q L48 (I), CAN (I)
CESTM Centaurea stoebe L. ssp. micranthos (Gugler) Hayek L48 (I), HI (I), CAN (I)
CEMA4 Centaurea maculosa auct. non Lam. spotted knapweed Q
CEVI Centaurea virgata Lam. squarrose knapweed ADW, Q L48 (I)
CEPUP6 Centromadia pungens (Hook. & Arn.) Greene ssp. pungens L48 (N)
HEPU5 Hemizonia pungens (Hook. & Arn.) Torr. & A. Gray spikeweed Q
CHJU Chondrilla juncea L. rush skeletonweed BDW, Q L48 (I), CAN (I)
CHAC Chrysopogon aciculatus (Retz.) Trin. pilipiliula Q (N), L48 (I), HI (I)
CIAR4 Cirsium arvense (L.) Scop. Canada thistle BDW, Q L48 (I), AK (I), CAN (I), GL (I), SPM (I)
CIVU Cirsium vulgare (Savi) Ten. bull thistle BDW, Q L48 (I), AK (I), HI (I), CAN (I), SPM (I)
CLVI6 Clematis vitalba L. old man's beard BDW, Q L48 (I), CAN (I)
COBE2 Commelina benghalensis L. Benghal dayflower Q (I), L48 (I), HI (I), PR (I)
COMA2 Conium maculatum L. poison hemlock BDW, Q L48 (I), CAN (I)
COAR4 Convolvulus arvensis L. field bindweed BDW, Q L48 (I), HI (I), CAN (I)
CRVU2 Crupina vulgaris Cass. common crupina BDW, Q L48 (I)
CUSCU Cuscuta L. dodder BDW, Q (I,N), L48 (I,N)
CYOF Cynoglossum officinale L. houndstongue BDW, Q L48 (I), CAN (I)
CYES Cyperus esculentus L. yellow nutsedge BDW, Q L48 (NI), HI (I), PR (I), VI (I), CAN (I)
CYRO Cyperus rotundus L. purple nutsedge ADW, Q (I), L48 (I), HI (I), PR (I), VI (I)
CYSC4 Cytisus scoparius (L.) Link Scotch broom BDW, Q L48 (I), AK (I), HI (I), CAN (I)
CYST7 Cytisus striatus (Hill) Rothm. Portugese broom BDW, Q L48 (I)
DIAB Digitaria abyssinica (Hochst. ex A. Rich.) Stapf HI (I)
DISC5 Digitaria scalarum (Schweinf.) Chiov. African couch grass Q
DIVE2 Digitaria velutina (Forssk.) P. Beauv. velvet fingergrass Q L48 (I)
DILA4 Dipsacus laciniatus L. cutleaf teasel BDW, Q L48 (I), CAN (I)
DRAR7 Drymaria arenarioides Humb. & Bonpl. ex Schult. [excluded] alfombrilla Q
ECPL Echium plantagineum L. Paterson's curse ADW, Q L48 (I), CAN (I)
EGDE Egeria densa Planch. L48 (I), HI (I), PR (I), CAN (W)
ELDE3 Elodea densa (Planch.) Caspary South American waterweed, elodea Q
EIAZ2 Eichhornia azurea (Sw.) Kunth anchored waterhyacinth Q L48 (I), PR (I)
ELRE4 Elymus repens (L.) Gould L48 (I), AK (I), CAN (I), GL (I), SPM (I)
AGRE2 Agropyron repens (L.) P. Beauv. quackgrass Q
EMAU Emex australis Steinh. three-cornered jack Q L48 (I)
EMSP Emex spinosa (L.) Campd. devil's thorn Q L48 (I), HI (I)
EQTE Equisetum telmateia Ehrh. giant horsetail BDW, Q L48 (N), CAN (N)
EUES Euphorbia esula L. leafy spurge BDW, Q L48 (I), CAN (I)
EUMY2 Euphorbia myrsinites L. myrtle spurge BDW, Q L48 (I), CAN (I)
GAOF Galega officinalis L. goatsrue Q L48 (I), CAN (I)
GEMO2 Genista monspessulana (L.) L.A.S. Johnson French broom BDW L48 (I)
CYMO5 Cytisus monspessulanus L. French broom Q
HAGL Halogeton glomeratus (M. Bieb.) C.A. Mey. halogeton BDW, Q L48 (I)
HEHE Hedera helix L. English ivy BDW, Q L48 (I), HI (I), CAN (I)
HECI Helianthus ciliaris DC. Texas blueweed ADW, Q L48 (N)
HEMA17 Heracleum mantegazzianum Sommier & Levier giant hogweed ADW, Q L48 (I), CAN (I)
HIAU Hieracium aurantiacum L. orange hawkweed ADW, Q L48 (I), AK (I), CAN (I), SPM (I)
HICA10 Hieracium caespitosum Dumort. L48 (I), CAN (I)
HIPR Hieracium pratense Tausch meadow hawkweed Q
HIFL3 Hieracium ×floribundum Wimm. & Grab. (pro sp.) [caespitosum × lactucella] yellow hawkweed ADW, Q L48 (I), CAN (I), SPM (I)
HIPI Hieracium pilosella L. mouse ear hawkweed ADW, Q L48 (I), AK (I), CAN (I), SPM (I)
HIPI2 Hieracium piloselloides Vill. king devil hawkweed ADW, Q L48 (I), CAN (I)
HYVE3 Hydrilla verticillata (L. f.) Royle hydrilla ADW, Q L48 (I)
HYPO3 Hygrophila polysperma (Roxb.) T. Anderson Miramar weed Q L48 (I)
HYPE Hypericum perforatum L. St.Johnswort, Klamath weed BDW L48 (I), HI (I), CAN (I), SPM (I)
IMGL Impatiens glandulifera Royle policeman's helmet BDW, Q L48 (I), CAN (I)
IMBR Imperata brasiliensis Trin. Brazilian satintail Q L48 (I), PR (I)
IMCY Imperata cylindrica (L.) P. Beauv.3 cogongrass Q (NI), L48 (I)
IPAQ Ipomoea aquatica Forssk. Chinese waterspinach Q (I), L48 (I), HI (I), PR (I)
IRPS Iris pseudacorus L. yellow flag iris BDW, Q L48 (I), CAN (I)
ISTI Isatis tinctoria L. dyer's woad BDW, Q L48 (I), CAN (W)
ISRU Ischaemum rugosum Salisb. murain-grass Q (N), L48 (I)
LAMA15 Lagarosiphon major (Ridley) Moss oxygen weed Q
LELA2 Lepidium latifolium L. perennial pepperweed BDW, Q L48 (I), CAN (I)
LECH2 Leptochloa chinensis (L.) Nees [excluded] Asian sprangletop Q
LISE3 Limnophila sessiliflora (Vahl) Blume ambulia Q L48 (I)
LIDA Linaria dalmatica (L.) Mill. Dalmatian toadflax BDW, Q L48 (I), CAN (I)
LIVU2 Linaria vulgaris Mill. yellow toadflax BDW, Q L48 (I), AK (I), CAN (I), GL (I), SPM (I)
LYFE4 Lycium ferocissimum Miers L48 (I)
LYFE3 Lycium ferrocissimum Miers, orth. var. African boxthorn Q
LYSA2 Lythrum salicaria L. purple loosestrife BDW, Q L48 (I), CAN (I), SPM (I)
MEQU Melaleuca quinquenervia (Cav.) S.F. Blake melaleuca Q (I), L48 (I), HI (I), PR (I)
MEMA Melastoma malabathricum L. Q (N), HI (I)
MICO16 Mikania cordata (Burm. f.) B.L. Rob. [excluded] mile-a-minute Q
MIMI5 Mikania micrantha Kunth mile-a-minute Q L48 (I), PR (N)
MIDI8 Mimosa diplotricha C. Wright (I), HI (I), PR (I)
MIIN80 Mimosa invisa Mart., non Mart. ex Colla giant sensitive plant Q
MIPE2 Mimosa pellita Kunth ex Willd. L48 (N), PR (N)
MIPI Mimosa pigra auct. non L. catclaw mimosa Q
MOHA2 Monochoria hastata (L.) Solms [excluded] monochoria Q
MOVA Monochoria vaginalis (Burm. f.) C. Presl ex Kunth pickerel weed Q L48 (I), HI (I)
MORAE Moraea Mill. L48 (I)
HOMER Homeria Vent. Cape tulip Q
MOCO8 Moraea collina Thunb. L48 (I)
HOCO6 Homeria collina (Thunb.) Salisb. Cape tulip Q
MOFL2 Moraea flaccida (Sweet) Steud.
HOFL4 Homeria flaccida Sweet Cape tulip Q
MOOC2 Moraea ochroleuca (Salisb.) Drapiez
HOOC Homeria ochroleuca Salisb. Cape tulip Q
MOPA8 Moraea pallida (Baker) Goldblatt
HOPA11 Homeria pallida Baker Cape tulip Q
MYSP2 Myriophyllum spicatum L. Eurasian watermilfoil BDW, Q L48 (I), AK (I), CAN (I)
NAST3 Nardus stricta L. matgrass ADW, Q L48 (I), CAN (I), GL (I), SPM (I)
NATR3 Nassella trichotoma (Nees) Hack. serrated tussock Q L48 (I)
NYPE Nymphoides peltata (S.G. Gmel.) Kuntze yellow floating heart ADW, Q L48 (I), CAN (I)
ONAC Onopordum acanthium L. Scotch thistle BDW, Q L48 (I), CAN (W)
OPAU10 Opuntia aurantiaca Lindl. jointed prickly pear Q
OROBA Orobanche L.4 broomrape Q (N), L48 (I,N)
ORMI Orobanche minor Sm. small broomrape BDW, Q L48 (I)
ORLO3 Oryza longistaminata A. Chev. & Roehr. red rice Q
ORPU13 Oryza punctata Kotzchy ex Steud. red rice Q
ORRU Oryza rufipogon Griffiths red rice Q L48 (I)
OTAL Ottelia alismoides (L.) Pers. duck-lettuce Q L48 (I)
PAMI2 Panicum miliaceum L. wild proso millet BDW, Q L48 (I), HI (I), PR (I), VI (I), CAN (I)
PASC6 Paspalum scrobiculatum L. Kodo-millet Q (NI), L48 (I), HI (I)
PEHA Peganum harmala L. African rue ADW, Q L48 (I)
PECL2 Pennisetum clandestinum Hochst. ex Chiov. kikuyugrass Q L48 (I), HI (I), PR (I), VI (I)
PEMA80 Pennisetum macrourum Trin. African feathergrass Q L48 (I), HI (I)
PEPE24 Pennisetum pedicellatum Trin. kyasuma-grass Q L48 (I)
PEPO14 Pennisetum polystachion (L.) Schult. (I), L48 (I), HI (I), PR (I)
PEPO4 Pennisetum polystachyon (L.) Schult., orth. var. missiongrass Q
POCU6 Polygonum cuspidatum Siebold & Zucc. Japanese knotweed BDW, Q L48 (I), AK (I), CAN (I), SPM (I)
POPO5 Polygonum polystachyum Wall. ex Meisn. Himalayan knotweed BDW, Q L48 (I), CAN (I), SPM (I)
POSA4 Polygonum sachalinense F. Schmidt ex Maxim. giant knotweed BDW, Q L48 (I), AK (I), CAN (I)
PORE5 Potentilla recta L. sulfur cinquefoil BDW, Q L48 (I), CAN (I)
PRAL11 Prosopis alpataco Phil. mesquite Q
PRAR6 Prosopis argentina Burkart mesquite Q
PRBU2 Prosopis burkartii Muñoz mesquite Q
PRCA9 Prosopis caldenia Burkart mesquite Q
PRCA10 Prosopis calingastana Burkart mesquite Q
PRCA11 Prosopis campestris Griseb. mesquite Q
PRCA12 Prosopis castellanosii Burkart mesquite Q
PRDE4 Prosopis denudans Benth. mesquite Q
PREL5 Prosopis elata (Burkart) Burkart mesquite Q
PRFA2 Prosopis farcta (Banks & Sol.) J.F. Macbr. Syrian mesquite Q L48 (I)
PRFE2 Prosopis ferox Griseb. mesquite Q
PRFI4 Prosopis fiebrigii Harms mesquite Q
PRHA4 Prosopis hassleri Harms ex Hassler mesquite Q
PRHU3 Prosopis humilis Gillies ex Hook. & Arn. mesquite Q
PRKU2 Prosopis kuntzei Harms ex Hassler mesquite Q
PRPA4 Prosopis pallida (Humb. & Bonpl. ex Willd.) Kunth kiawe Q (I), HI (I), PR (I), VI (I)
PRPA10 Prosopis palmeri S. Watson mesquite Q
PRRE2 Prosopis reptans Benth. tornillo Q L48 (N)
PRRO4 Prosopis rojasiana Burkart mesquite Q
PRRU4 Prosopis ruizlealii Burkart mesquite Q
PRRU5 Prosopis ruscifolia Griseb. mesquite Q
PRSE5 Prosopis sericantha Gillies ex Hook. & Arn. mesquite Q
PRST3 Prosopis strombulifera (Lam.) Benth. Argentine screwbean Q L48 (I)
PRTO3 Prosopis torquata DC. mesquite Q
PRVE Prosopis velutina Wooton L48 (N), HI (I)
PRAR4 Prosopis articulata S. Watson velvet mesquite Q
PUMOL Pueraria montana (Lour.) Merr. var. lobata (Willd.) Maesen & S.M. Almeida ex Sanjappa & Predeep (I), L48 (I), HI (I)
PULO Pueraria lobata (Willd.) Ohwi kudzu Q
ROSY Rorippa sylvestris (L.) Besser creeping yellow cress BDW, Q L48 (I), AK (I), CAN (I), GL (I)
ROCO6 Rottboellia cochinchinensis (Lour.) W.D. Clayton itchgrass Q L48 (I), PR (I)
RUAR9 Rubus armeniacus Focke L48 (I), HI (I), CAN (I)
RUDI2 Rubus discolor Weihe & Nees Himalayan blackberry Q
RUFR80 Rubus fruticosus L. [excluded] wild blackberry complex Q
RUMO4 Rubus moluccanus L. [excluded] wild blackberry Q
SASP Saccharum spontaneum L. wild sugarcane Q (N), HI (I), PR (I)
SASA7 Sagittaria sagittifolia L. [excluded] arrowhead Q
SAVE6 Salsola vermiculata L. wormleaf salsola Q L48 (I)
SAAE Salvia aethiopis L. Mediterranean sage BDW, Q L48 (I)
SAAU Salvinia auriculata Aubl. giant salvinia Q PR (I)
SABI9 Salvinia biloba Raddi giant salvinia Q
SAHE7 Salvinia herzogii de la Sota giant salvinia Q
SAMO5 Salvinia molesta Mitchell giant salvinia Q L48 (I), HI (I)
SEJA Senecio jacobaea L. tansy ragwort BDW, Q L48 (I), CAN (I), SPM (I)
SEPUP3 Setaria pumila (Poir.) Roem. & Schult. ssp. pallidefusca (Schumach.) B.K. Simon L48 (I)
SEPA82 Setaria pallidifusca (Schumach.) Stapf & C.E. Hubbard, orth. var. cattail grass Q
SIMA3 Silybum marianum (L.) Gaertn. milk thistle BDW L48 (I), CAN (I)
SOEL Solanum elaeagnifolium Cav. silverleaf nightshade ADW, Q L48 (N), HI (I), PR (N)
SORO Solanum rostratum Dunal buffalobur BDW, Q L48 (N), CAN (W)
SOTA3 Solanum tampicense Dunal wetland nightshade Q L48 (I)
SOTO4 Solanum torvum Sw. turkeyberry Q (I), L48 (I), HI (I), PR (I), VI (I)
SOVI2 Solanum viarum Dunal tropical soda apple Q L48 (I)
SOHA Sorghum halepense (L.) Pers. johnsongrass BDW, Q (I), L48 (I), HI (I), PR (I), CAN (I)
SPER Sparganium erectum L. exotic bur-reed Q L48 (I)
SPAL Spartina alterniflora Loisel. smooth cordgrass ADW, Q L48 (N), CAN (N)
SPAN5 Spartina anglica C.E. Hubbard common cordgrass ADW, Q L48 (I), CAN (I)
SPDE2 Spartina densiflora Brongn. dense-flowered cordgrass ADW, Q L48 (I), CAN (I)
SPPA Spartina patens (Aiton) Muhl. saltmeadow cordgrass BDW, Q L48 (N), PR (N), VI (N), CAN (N)
SPJU2 Spartium junceum L. Spanish broom BDW, Q L48 (I), HI (I)
SPAL3 Spermacoce alata Aubl. [excluded] borreria Q
SPSA3 Sphaerophysa salsula (Pall.) DC. Austrian peaweed BDW, Q L48 (I), CAN (I)
STRIG Striga Lour. witchweed Q (N), L48 (I)
TACA8 Taeniatherum caput-medusae (L.) Nevski medusahead rye BDW, Q L48 (I)
TARA Tamarix ramosissima Ledeb. saltcedar BDW, Q L48 (I)
TRNA Trapa natans L. European water chestnut ADW, Q L48 (I), CAN (I)
TRTE Tribulus terrestris L. puncturevine BDW, Q (I), L48 (I), HI (I), CAN (W)
TRPR5 Tridax procumbens L. coat buttons Q (I), L48 (I), HI (I), PR (I), VI (I)
TUFA Tussilago farfara L. coltsfoot ADW, Q L48 (I), CAN (I), SPM (I)
ULEU Ulex europaeus L. gorse BDW, Q L48 (I), HI (I), CAN (I)
URPA Urochloa panicoides P. Beauv. liverseed grass Q L48 (I)
XASP2 Xanthium spinosum L. spiny cocklebur BDW, Q L48 (I), CAN (I)
ZYFA Zygophyllum fabago L. Syrian bean-caper ADW, Q L48 (I)

 

†CodeNoxious Status
ADW "A" designated weed
BDW "B" designated weed
NW Noxious weed
Q Quarantine

*CodeNative Status
I Introduced
I,N None
N Native
NI Native and Introduced
W Waif

*CodeNative Status Jurisdiction
None
L48 Lower 48 States
AK Alaska
HI Hawaii
PR Puerto Rico
VI Virgin Islands
CAN Canada
GL Greenland
SPM St. Pierre and Miquelon


1 except named horticultural varieties  
2 Mediterranean clone  
3 Imperata cylindrica 'Red Baron' is excluded from quarantine  
4 other than native or widely distributed species  

Additional information about noxious plants in this state can be found at:

  • OR-OISC Invader Species Abstracts
  • OR-Oregon Cooperative Extension Service
  • OR-Oregon Department of Agriculture
  • OR-Oregon Invasive Species Council
  • OR-Oregon Plant Division
  • OR-Oregon State: Weed Identification Page
  • OR-WeedMapper.org

 

 
Time Generated: 12/11/2017 10:49 PM CST