"T" Weeds
These weeds represent
an economic threat to the state of Oregon. Please call 1-866-INVADER if you suspect you have found any of these weeds.
"A" Weeds
These are weeds of known economic importance which occur
in the state in small enough infestations to make eradication/containment
possible; or which are not known to occur, but their presence
in neighboring states makes future occurence in Oregon seem
imminent. Please call 1-866-INVADER if you suspect you have found any of these weeds.
"B" Weeds
These are weeds of economic importance which are regionally abundant, but which may have limited distribution in some counties. If you would like information on how to control these weeds, please contact your local county weed program or extension agent, or refer to the Pacific Northwest Weed Management Handbook.
Listing
|
Code
|
Common Name
|
Family
|
Scientific Name
|
A |
PEHA |
|
Zygophyllaceae |
Peganum harmala |
B
|
SPSA3
|
|
Fabaceae
|
Sphaerophysa salsula
|
A,T |
AETR |
|
Poaceae |
Aegilops triuncialis |
B |
CRVU2 |
|
Asteraceae |
Crupina vulgaris |
B
|
ACNO4
|
|
Zygophyllaceae
|
Acaena novae-zelandiae
|
B
|
SORO
|
|
Solanaceae
|
Solanum rostratum
|
B
|
CIVU
|
|
Asteraceae
|
Cirsium vulagre
|
B |
BUDA2 |
|
Buddlejaceae |
Buddleja davidii |
A |
ALMA12 |
|
Fabaceae |
Alhagi pseudalhagi |
B |
CIAR4 |
|
Asteraceae |
Cirsium arvense |
A |
TUFA |
|
Asteraceae |
Tussilago farfara |
B,T
|
ANOF
|
|
Boraginaceae
|
Anchusa officinalis
|
A,T |
SPAN5 |
|
Poaceae |
Spartina anglica |
B
|
ROSY
|
|
Brassicaceae
|
Rorippa sylvestris
|
B
|
DILA4
|
|
Dipsacaceae
|
Dipsacus laciniatus
|
B
|
LIDA
|
|
Scrophulariaceae
|
Linaria dalmatica
|
A,T |
SPDE2 |
|
Poaceae |
Spartina densiflora |
B
|
CEDI3
|
|
Asteraceae
|
Centaurea diffusa
|
B
|
CUSCU
|
|
Cuscutaceae
|
Cuscuta spp.
|
B
|
ISTI
|
|
Brassicaceae
|
Isatis tinctoria
|
B
|
HEHE
|
|
Araliaceae
|
Hedera helix
|
B
|
MYSP2
|
|
Haloragaceae
|
Myriophyllum spicatum
|
A |
TRNA |
|
Trapaceae |
Trapa natans |
B
|
BRSY
|
|
Poaceae
|
Brachypodium sylvaticum
|
B
|
COAR4
|
|
Convolvulaceae
|
Convolvulus arvensis
|
B
|
GEMO2
|
|
Fabaceae
|
Genista monspessulanas
|
B |
ALPE4 |
|
Brassicaceae |
Alliaria petiolata |
A,T |
HEMA17 |
|
Apiaceae |
Heracleum mantegazzianum |
B
|
EQTEB
|
|
Equietaceae
|
Equisetum telmateia
|
B,T
|
POSA4
|
|
Polygonaceae
|
Polygonum sachalinense
|
A |
GAOF |
Goatsrue |
Fabaceae |
Galega officinalis |
B,T
|
ULEU
|
|
Fabaceae
|
Ulex europaeus
|
B
|
CAPU6
|
|
Brassicaceae
|
Cardaria pubescens
|
B
|
HAGL
|
|
Chenopodiaceae
|
Halogeton glomeratus
|
B
|
RUDI2
|
|
Rosaceae
|
Rubus discolor (armeniacus)
|
B,T
|
POPO5
|
|
Polygonaceae
|
Polygonum polystachyum
|
B
|
CYOF
|
|
Boraginaceae
|
Cynoglossum officinale
|
A |
HYVE3 |
|
Hydrocharitaceae |
Hydrilla verticillata |
A,T |
CEIB |
|
Asteraceae |
Centaurea iberica |
B
|
CAPY2
|
|
Asteraceae
|
Carduus phycnocephalus
|
B,T
|
POCU6
|
|
Polygonaceae
|
Polygonum cuspidatum
|
B
|
SOHA
|
|
Poaceae
|
Sorghum halepense
|
B
|
AECY
|
|
Poaceae
|
Aegilops cylindrica
|
B |
COJU2 |
|
Poaceae |
Cortaderia jubata |
A |
HIPI2 |
|
Asteraceae |
Hieracium piloselloides |
B
|
KOSC
|
|
Chenopodiaceae
|
Kochia scoparia
|
A,T |
PUMOL |
|
Fabaceae |
Pueraria lobata |
B, T
|
EUES
|
|
Euphorbiaceae
|
Euphorbia esula
|
B
|
CACH10
|
|
Brassicaceae
|
Cardaria chalapensis
|
B |
RAFI |
Lesser celandine |
Ranunculaceae |
Ranunculus ficaria |
A |
NAST3 |
|
Poaceae |
Nardus stricta |
A,T |
HICA10 |
|
Asteraceae |
Hieracium pratense |
B
|
CEDE5
|
|
Asteraceae
|
Centaurea pratensis
|
B
|
SAAE
|
|
Lamiaceae
|
Salvia aethiopis
|
B
|
TACA8
|
|
Poaceae
|
Taeniatherum caput-medusae
|
B
|
SIMA3
|
|
Asteraceae
|
Silybum marianum
|
A |
HIPI |
|
Asteraceae |
Hieracium pilosella |
B
|
CANU4
|
|
Asteraceae
|
Cardus nutans
|
B |
EUMY2 |
|
Euphorbiaceae |
Euphorbia myrsinites |
A |
EUOB4 |
Oblong spurge |
Euphorbiaceae |
Euphorbia oblongata |
B
|
CLVI6
|
|
Ranunculaceae
|
Clematis vitalba
|
A,T |
HIAU |
|
Asteraceae |
Hieracium aurantiacum |
A |
AEGE |
|
Poaceae |
Aegilops ovata |
B |
MYAQ2 |
Parrot feather |
Haloragaceae |
Myriophyllum aquaticum |
A |
ECPL |
|
Boraginaceae |
Echium plantagineum |
B |
LALA4 |
Perennial peavine |
Fabaceae |
Lathyrus latifolius |
B
|
LELA2
|
|
Brassicaceae
|
Lepidium latifolium
|
A |
CAAC |
|
Asteraceae |
Carduus acanthoides |
B
|
COMA2
|
|
Apiaceae
|
Conium maculatum
|
B |
IMGL |
|
Balsaminaceae |
Impatiens glandulifera |
B,T
|
CYST7
|
|
Fabaceae
|
Cytisus striatus
|
B
|
TRTE
|
|
Zygophyllaceae
|
Tribulus terrestris
|
B, T
|
LYSA2
|
|
Lythraceae
|
Lythrum salicaria
|
A |
CYRO |
|
Cyperaceae |
Cyperus rotundus |
A, T |
CECA2 |
|
Asteraceae |
Centaurea calcitrapa |
B
|
ELRE4
|
|
Poaceae
|
Agropyron repens
|
B
|
AMAR2
|
|
Asteraceae
|
Ambrosia artemisiifolia
|
B, T
|
CHJU
|
|
Asteraceae
|
Chondrilla juncea
|
B
|
ACRE3
|
|
Asteraceae
|
Acroptilon repens
|
B
|
TARA
|
|
Tamaricaceae
|
Tamarix ramosissima
|
A,T |
SPPA |
|
Poaceae |
Spartina patens |
B
|
CYSC4
|
|
Fabaceae
|
Cytisus scoparius
|
B
|
ONAC
|
|
Asteraceae
|
Onopordum acanthium
|
A |
SOEL |
|
Solanaceae |
Solanum elaegnifolium |
A |
AMTO3 |
|
Asteraceae |
Ambrosia tomentosa |
B
|
CATE2
|
|
Asteraceae
|
Carduus tenuiflorus
|
B
|
ORMI
|
|
Orbanchaceae
|
Orobanche minor
|
A,T |
SPAL |
|
Poaceae |
Spartina alterniflora |
A |
CALAB2 |
|
Asteraceae |
Carthamus baeticus |
B
|
EGDE
|
|
Hydrocharitaceae
|
Elodea (=egeria)densa
|
B
|
SPJU2
|
|
Fabaceae
|
Spartium junceum
|
B
|
HEPU5
|
|
Asteraceae
|
Hemizonia pungens
|
B
|
XASP2
|
|
Asteraceae
|
Xanthium spinosum
|
B, T
|
CEBI2
|
|
Asteraceae
|
Centaurea maculosa
|
B |
DALA11 |
Spurge laurel |
Thymelaeaceae |
Daphne laureola |
A, T |
CEVI |
|
Asteraceae |
Centaurea virgata |
B
|
HYPE
|
|
Hypericaceae
|
Hypericum perforatum
|
B
|
PORE5
|
|
Rosaceae
|
Potentilla recta
|
A |
ZYFA |
|
Zygophyllaceae |
Zygophyllum fabago |
B, T
|
SEJA
|
|
Asteraceae
|
Senecio jacobaea
|
A |
ONTA |
Taurian thistle |
Asteraceae |
Onopordum tauricum |
A |
HECI |
|
Asteraceae |
Helianthus ciliaris |
B
|
ABTH
|
|
Malvaceae
|
Abutilon theophrasti
|
B
|
CADR
|
|
Brassicaceae
|
Cardaria draba
|
A,T |
CALA20 |
|
Asteraceae |
Carthamus lanatus |
B |
IRPS |
|
Iridaceae |
Iris pseudacorus |
A |
NYPE |
|
Menyanthaceae |
Nymphoides peltata |
A, T |
HIFL3 |
|
Asteraceae |
Hieracium floribundum |
B
|
CYES
|
|
Cyperacea
|
Cyperus esulentus
|
B, T
|
CESO3
|
|
Asteraceae
|
Centaurea solstitialis
|
B
|
LIVU2
|
|
Scrophulariaceae
|
Linaria vulgaris
|
|