Oregon WeedMapper Plant Information
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Oregon WeedMapper Plant Information
Clarification of plant information profiles
Oregon Department of Agriculture and the WeedMapper Team have compiled profiles of the weeds listed by the Oregon State Weed Board (OSWB).  Profiles include information about the weed, images, and locations in Oregon.
 
These profiles may not reflect the most updated listing by the OSWB, cooperators should always use the Oregon Noxious Weed Policy and Classification for the most up to date and accurate state listed noxious weeds.
 

A List Weeds
"A" Designated weeds as determined by the Oregon State Weed Board


Common Name

Scientific Name

Distribution

Code

Peganum harmala  Map  PEHA
Alhagi pseudalhagi Not Present
 ALMA12
Tussilago farfara Not Present
 TUFA
Common reed
Phragmites australis ssp. australis
 Map  PHAU7
Cordgrass
     
Common
Spartina anglica  Not Present
 SPAN5
Dense-flowered
Spartina densiflora  Not Present
 SPDE2
Saltmeadow
Spartina patens  Map  SPPA
Smooth
Spartina alterniflora  Map  SPAL
European water chestnut
Trapa natans  Not Present
 TRNA
Flowering rush
Butomus umbellatus
 Not Present
BUUM
Giant hogweed
Heracleum mantegazzianum Map  HEMA17
Goatgrass
     
Barbed
Aegilops triuncialis  Map  AETR
Ovate
Aegilops ovata  Not Present
 AEGE
Goatsrue Galega officinalis
 Map  GAOF
Hawkweed
     
King-devil
Hieracium piloselloides  Not Present
 HIPI2
Meadow
Hieracium pratense Map
 HICA10
Mouse-ear
Hieracium pilosella  Map HIPI
Orange
Hieracium aurantiacum  Map HIAU
Yellow
Hieracium floribundum Not Present
 HIFL3
Hydrilla
Hydrilla verticillata Not Present
 HYVE3
Japanese dodder
Cuscuta japonica
 Map  CUJA
Kudzu
Pueraria lobata  Map  PUMOL
Matgrass
Nardus stricta  Map  NAST3
Oblong spurge
Euphorbia oblongata
 Map  EUOB4
Paterson's curse
Echium plantagineum  Map  ECPL
Purple nutsedge
Cyperus rotundus  Not Present
 CYRO
Silverleaf nightshade
Solanum elaeagnifolium  Not Present
 SOEL
Squarrose knapwee Centaurea virgata  Map  CEVI
Starthistle
     
Iberian
Centaurea iberica  Map  CEIB
Purple
Centaurea calcitrapa  Map CECA2
Syrian bean-caper
Zygophyllum fabago  Not Present
 ZYFA
Thistle
     
Plumeless
Carduus acanthoides  Map  CAAC
Smooth distaff
Carthamus baeticus Not Present CALAB2
Taurian
Onopordum tauricum  Map ONTA
Woolly distaff
Carthamus lanatus
 Map  CALA20
White bryonia
Bryonia alba  Not Present
 BRAL
Yellow floating heart
Nymphoides peltata  Map  NYPE
Yellow tuft
 Alyssum murale & Alyssum corsicum
Map
 ALMU

B List Weeds
"B" designated weeds as determined by the Oregon State Weed Board
(*indicates targeted for biological control)
 
Common Name Scientific Name Distribution Code
Rubus armeniacus (R. procerus, R. discolor) Map RUDI2
Acaena novae-zelandiae Map ACNO4
Broom      
French*
Genista monspessulana
Map GEMO2
Portuguese
Cytisus striatus
Map CYST7
Scotch*
Cytisus scoparius
Map CYSC4
Spanish
Spartium junceum
Map SPJU2
Buffalobur
Solanum rostratum
Map SORO
Butterfly bush
Buddleja davidii (B.variabilis)
Map
BUDA2
Common bugloss
Anchusa officinalis
Map ANOF
Common crupina (bearded creeper) Crupina vulgaris Map CRVU2
Creeping yellow cress
Rorippa sylvestris
Map PHAU7
Cutleaf teasel
Dipsacus laciniatus
Map DILA4
Dodder
Cuscuta spp.
Map CUSCU
Dyers woad
Isatis tinctoria
Map ISTI
English ivy
Hedera helix (H. hibernica)
Map HEHE
Eurasian watermilfoil
Myriophyllum spicatum
Map MYSP2
False brome
Brachypodium sylvaticum
Map BRSY
Field bindweed*
Convolvulus arvensis
Map COAR4
Garlic mustard
Alliaria petiolata
Map ALPE4
 Geranium      
Herb Robert 
Geranium robertianum
Map GERO
Shiny leaf geranium
 Geranium lucidum Map GELU
Gorse*
Ulex europaeus
Map ULEU
Halogeton
Halogeton glomeratus
Map HAGL
Houndstongue
Cynoglossum officinale
Map CYOF
Johnsongrass
Sorghum halepense
Map SOHA
Jointed goatgrass
Aegilops cylindrical
Map
AECY
Jubata grass Cortaderia jubata Map COJU2
Knapweeds
 
 
   
Diffuse
Centaurea diffusa
Map
CEDI3
Meadow*
Centaurea pratensis (C. jacea x C. nigra)
Map HICA10
Russian*
Acroptilon repens
Map ACRE3
Spotted*
Centaurea stoebe (C. maculosa)
Map CEBI2
Knotweeds
 
 
   
Giant
Fallopia sachalinense (Polyganum)

Map POSA4
Himalayan
Fallopia polystachyum (Polyganum)

Map POPO5
Japanese (fleece flower)
Fallopia japonica (Polyganum cuspidatum)
Map
POCU6
Kochia
Kochia scoparia
Map KOSC
Lesser celandine
Ranunculus ficaria
Map
RAFI
Mediterranean sage*
Salvia aethiopis
Map SAAE
Medusahead rye
Taeniatherum caput-medusae
Map TACA8
Old man's beard
Clematis vitalba
Map CLVI6
Parrots feather
Myriophyllum aquaticum
Map MYAQ2
Perennial peavine
Lathyrus latifolius
Map LALA4
Perennial pepperweed
Lepidium latifolium
Map LELA2
Poison hemlock
Conium maculatum
Map COMA2
Policeman's helmet
Impatiens glandulifera
Map IMGL
Puncturevine*
Tribulus terrestris
Map TRTE
Purple loosestrife*
Lythrum salicaria
Map LYSA2
Ragweed
Ambrosia artemisiifolia
Map AMAR2
Rush skeletonweed*
Chondrilla juncea
Map CHJU
Saltcedar*
Tamarix ramosissima
Map TARA
Small broomrape
Orobanche minor
Map ORMI
South American waterweed
Egeria densa (Elodea)
Map EGDE
Spanish heath Erica lusitanica Map ERLU
Spikeweed Memizonia pungens
Map HEPU5
Spiny cocklebur
Xanthium spinosum
Map XASP2
Spurge laurel
Daphne laureola
Map DALA11
Spurge
 
 
   
Leafy*
Euphorbia esula
Map
EUES
Myrtle
Euphorbia myrsinites
Map EUMY2
St. Johnswort (Klamath weed) *
Hypericum perforatum
Map HYPE
Sulfur cinquefoil
Potentilla recta
Map PORE5
Swainsonpea (Austrian peaweed) Sphaerophysa salsula Map SPSA3
Tansy ragwort*
Senecio jacobaea
Map SEJA
Thistles
 
 
   
Bull*
Cirsium vulgare
Map CIVU
Canada*
Cirsium arvense
Map CIAR4
Italian*
Carduus pycnocephalus
Map CAPY2
Milk*
Silybum marianum
Map SIMA3
Musk*
Carduus nutans
Map CANU4
Scotch
Onopordum acanthium
Map ONAC
Slender-flowered*
Carduus tenuiflorus
Map
CATE2
Toadflax
 
 
   
Dalmatian*
Linaria dalmatica (L. genista)

Map LIDA
Yellow*
Linaria vulgaris
Map
LIVU2
Velvetleaf
Abutilon theophrasti
Map ABTH
Whitetop
 
 
   
Hairy
Lepidium pubescens (Cardaria)
Map CAPU6
Lens-podded
Lepidium chalepensis (Cardaria)
Map CACH10
Hoary cress
Lepidium draba (Cardaria)
Map BRAL
Yellow flag iris
Iris pseudacorus
Map IRPS
Yellow nutsedge
Cyperus esculentus
Map CYES
Yellow starthistle*
Centaurea solstitialis
Map CESO3

Oregon WeedMapper Plant Information