Oregon Noxious Weeds

Oregon Department of Agriculture. 2019. Noxious weed policy and classification System. The Oregon Department of Agriculture Noxious Weed Control Program.

https://www.oregon.gov/ODA/shared/Documents/Publications/Weeds/NoxiousWeedPolicyClassification.pdf

Common Name Scientific Name
kudzu Pueraria montana var. lobata (Willd.) Maesen & S. Almeida
small broomrape Orobanche minor Smith
Canada thistle Cirsium arvense (L.) Scop.
tree-of-heaven Ailanthus altissima (P. Mill.) Swingle
garlic mustard Alliaria petiolata (Bieb.) Cavara & Grande
giant reed Arundo donax L.
musk thistle, nodding thistle Carduus nutans L.
yellow nutsedge Cyperus esculentus L.
Brazilian waterweed, Brazilian elodea Egeria densa Planch.
English ivy Hedera helix L.
hydrilla Hydrilla verticillata (L. f.) Royle
purple loosestrife Lythrum salicaria L.
parrotfeather Myriophyllum aquaticum (Vell.) Verdc.
Eurasian watermilfoil Myriophyllum spicatum L.
lesser celandine, fig buttercup Ficaria verna Huds.
bull thistle Cirsium vulgare (Savi) Ten.
spiny plumeless thistle, plumeless thistle Carduus acanthoides L.
European water chestnut Trapa natans L.
yellow toadflax Linaria vulgaris P. Mill.
puncturevine Tribulus terrestris L.
field bindweed Convolvulus arvensis L.
gorse, common gorse Ulex europaeus L.
meadow knapweed Centaurea x moncktonii C. E. Britton[C. jacea X C. nigra]
Mediterranean sage Salvia aethiopis L.
poison hemlock Conium maculatum L.
squarrose knapweed Centaurea virgata Lam.
Russian knapweed Rhaponticum repens (L.) Hidalgo
yellow starthistle Centaurea solstitialis L.
rush skeletonweed Chondrilla juncea L.
Scotch broom Cytisus scoparius (L.) Link
common St. Johnswort Hypericum perforatum L.
common crupina Crupina vulgaris Cass.
slenderflower thistle Carduus tenuiflorus W. Curtis
meadow hawkweed Hieracium caespitosum Dumort.
sulfur cinquefoil Potentilla recta L.
Scotch thistle Onopordum acanthium L.
Italian plumeless thistle Carduus pycnocephalus L.
blessed milkthistle, milk thistle Silybum marianum (L.) Gaertn.
diffuse knapweed Centaurea diffusa Lam.
goatsrue Galega officinalis L.
giant hogweed Heracleum mantegazzianum Sommier & Levier
Dyer's woad Isatis tinctoria L.
jointed goatgrass Aegilops cylindrica Host
ovate goatgrass Aegilops geniculata Roth
barb goatgrass Aegilops triuncialis L
camelthorn Alhagi maurorum Medik
indigobush Amorpha fruticosa L.
Palmer amaranth Amaranthus palmeri S. Wats.
common bugloss Anchusa officinalis L.
hoary alyssum Berteroa incana (L.) DC
white bryony Bryonia alba L.
flowering rush Butomus umbellatus L.
orbicular whitetop, lens-podded hoary cress Lepidium chalepense L.
curly plumeless thistle Carduus crispus L.
hoary cress Lepidium draba (L.) Desv
woolly distaff thistle Carthamus lanatus L.
woolly distaff thistle Carthamus lanatus ssp. creticus (L.) Holmboe
purple starthistle Centaurea calcitrapa L.
Iberian starthistle Centaurea iberica Trev. ex Spreng
alpine knapweed, Tyrol knapweed Centaurea nigrescens Willd
purple pampasgrass Cortaderia jubata (Lem.) Stapf
common hawthorn Crataegus monogyna Jacq.
Japanese dodder Cuscuta japonica Choisy
houndstongue Cynoglossum officinale L.
purple nutsedge Cyperus rotundus L.
striated broom Cytisus striatus (Hill) Rothm
spurgelaurel Daphne laureola L.
Cape-ivy, cape ivy Delairea odorata Lem
cutleaf teasel Dipsacus laciniatus L.
common viper's bugloss, blueweed Echium vulgare L.
myrtle spurge Euphorbia myrsinites L
eggleaf spurge Euphorbia oblongata Griseb
French broom Genista monspessulana (L.) L. Johnson
halogeton, saltlover Halogeton glomeratus (Bieb.) C.A. Mey.
pale yellow iris, yellow flag iris Iris pseudacorus L.
everlasting peavine Lathyrus latifolius L.
perennial pepperweed Lepidium latifolium L.
Dalmatian toadflax Linaria dalmatica (L.) P. Mill.
creeping waterprimrose Ludwigia peploides (Kunth) Raven
garden loosestrife Lysimachia vulgaris L.
matgrass Nardus stricta L.
bull cottonthistle Onopordum tauricum Willd.
African rue Peganum harmala L.
reed canarygrass Phalaris arundinacea L.
cultivated knotweed Persicaria wallichii Greuter & Burdet
Himalayan blackberry Rubus armeniacus Focke
smooth cordgrass Spartina alterniflora Loisel.
common cordgrass Spartina anglica C.E. Hubbard
denseflower cordgrass Spartina densiflora Brongn.
Spanish broom Spartium junceum L.
saltmeadow cordgrass Spartina patens (Ait.) Muhl.
swainsonpea Sphaerophysa salsula (Pallas) DC.
water soldier Stratiotes aloides L.
medusahead Taeniatherum caput-medusae (L.) Nevski
saltcedar Tamarix ramosissima Ledeb.
coltsfoot Tussilago farfara L.
ventenata Ventenata dubia (Leers) Coss. & Durieu
dog rose Rosa canina L.
butterflybush Buddleja davidii Franch.
herb-robert Geranium robertianum L.
yellow devil hawkweed Hieracium x floribundum Wimmer & Grab. [caespitosum x lactucella]
kingdevil hawkweed Hieracium piloselloides Vill.
salvation jane Echium plantagineum L.
European frog-bit Hydrocharis morsus-ranae L.
Himalayan balsam Impatiens glandulifera Royle
yellow floating heart Nymphoides peltata (S.G. Gmel.) Kuntze
perennial false-brome Brachypodium sylvaticum (Huds.) Beauv.
evergreen clematis Clematis vitalba L.
Spanish heath Erica lusitanica K. Rudolphi
shining geranium Geranium lucidum L.
yellow archangel Lamium galeobdolon (L.) Crantz
summer pheasant's eye Adonis aestivalis L.
water primrose Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) Nesom & Kartesz
Atlantic ivy Hedera hibernica Poit.
Japanese knotweed Reynoutria japonica Sieb. & Zucc.
kochia Bassia scoparia (L.) A.J. Scott
giant knotweed Reynoutria sachalinensis F. Schmidt ex Maxim.
pine echium Echium pininana Webb & Berthel.
biddy-biddy Acaena novae-zelandiae Kirk
delta arrowhead Sagittaria platyphylla (Engelm.) J.G. Sm.
large-flower primrose-willow Ludwigia grandiflora (Michx.) Greuter & Burdet
West Indian spongeplant Limnobium laevigatum (Humb. & Bonpl. ex Willd.) Heine
yellowtuft Alyssum murale Waldst. & Kit.
sweetbriar Rosa rubiginosa L.
ravennagrass Saccharum ravennae L.
yellowtuft Alyssum corsicum Duby
European common reed, Phragmites Phragmites australis ssp. australis (Cavanilles) Trinius ex Steudel
Bohemian knotweed, Hybrid Japanese knotweed Reynoutria x bohemica Chrtek & Chrtková
hairy whitetop Lepidium appelianum Al-Shehbaz
tansy ragwort Jacobaea vulgaris Gaertn.
leafy spurge Euphorbia virgata Waldst. & Kit.
orange hawkweed Pilosella aurantiaca (L.) F. W. Schultz & Sch. Bip.
Turkish or Spanish thistle Carduus cinereus M.Bieb.
mouse-eared hawkweed Pilosella officinarum Vaillant
spotted knapweed Centaurea stoebe australis (Pancic ex A.Kern.) Greuter