"EDRR", "A", or "B" Designated Weeds - Baker County Weed District - Noxious Weed List 2020-2021
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Baker County Weed District - Noxious Weed List 2020-2021
“EDRR”, “A”, or “B” Designated Weeds
All Listed Weeds are Eligible for Cost-Share
“Early Detection/Rapid Response (EDRR) ” – Not Present in Baker
County or Very Few Known Sites: Controlled at the expense of the Baker County
Weed District which includes inventorying, treating, monitoring, and other follow-up
activities.
African rue (T)* Peganum harmala
+Black henbane Hyoscyamus niger
Broom
French* Genista monspessulana
Portuguese* (T) Cytisus striatus
Scotch*^ Cytisus scoparius
Spanish* Spartium jundeum
Buffalobur* Solanum rostratum
Butterfly bush* Buddleja davidii (B. variabilis)
Camelthorn* Alhagi pseudalhagi
Cape-ivy* Delairea odoraata
Common bugloss** Anchusa officinalis
Common frogbit* Hydrocharis morsus-ranae
Common reed* Phragmities australis spp. Australis
Cordgrass
Common* Spartina anglica
Dense-flower* (T) Spartina desiflora
Saltmeadow*(T) Spartina patens
Smotth* (T) Spartina alterniflora
Creeping yellow cress* Rorippa sylvestris
Cutleaf teasel* Dipsacus laciniatus
Delta arrowhead* (T) Sagittaria platyphyla
Dodder
Smoothseed alfalfa* Cuscuta approimata
Five-angled* Cuscuta pentogona
Bigseed* Cuscuta indecora
Dyers Woad* Istasis tinctoria
Eurasian watermilfoil* Myriophyllum spicatum
European water chestnut* Trapa natans
False broom* Brachypodium sylvaticum
Flowering rush* (T) Butomus umbellatus
Garlic mustard* (T) Alliaria petiolata
Garden yellow loosestrife*(T) Lysimachia vulgaris
Geranium
Herb Robert* Geranium robertianum
Shiny leaf* Geraniium lucidum
Giant hogweed* (T) Heacleum mantegazzianum
Underlined Plants – Prior to 2020/2021 Aquatic Plants light colored (T) Designated weed high priority from ODA and Baker County
*State A Listing (not currently found in Baker County) ** State B Listing ^ BioControl Insects Available + Baker County OnlyBaker County Weed District - Noxious Weed List 2020-2021
Goatgrass
Barbed* (T) Aegilops triuncialis
Ovate* Aegilops ovata
Gorse* (T) Ulex europaeus
Halogeton* Halogeton glomeratus
Hawkweed
King-devil* Hieracium piloselloides
Meadow** (T) Pilosella caespitosum (Hieracium)
Mouse-ear* (T) Hieracium pilosella
Orange* (T) Hieracium aurantiacum
Yellow* (T) Hieracium floribundum
Hoary alyssum* (T) Berteroa incana
Hydrilla* (T) Hydrilla verticillata
Ivy
Atlantic* Hedera Hibernica
English* Hedera helix
Japanese dodder* Cuscuta japonica
Johnsongrass** Sorgum halepense
Jubata grass** Cortaderia jubata
Knotweed
Bohemian** Fallopia x bohemica
Giant** Fallopia sachalinensis (Polygonum)
Himalayan** Polyfonuym polystachyum
Japanese** Fallopia japonica (Polygonum)
Kudzu* (T) Pueraria lobate
Matgrass* (T) Nardus stricta
Meadow knapweed** Centaurea pratensis
Mediterranean sage**^ Salvia aethiopis
Oblong spurge (T) Euphorbia oblongata
Old man’s beard** Clematis vitalba
Parrot feather milfoil** Myrophylklum aquaticum
Paterson’s curse* (Viper’s bugloss)(T) Echium plantagineum
Perennial peavine** Lathyrus latifolius
Pheasants eye** Adonis aestivalis
Policeman’s helmet** Impatiens glandulifera
Purple nutsedge* Cuyperus rotundus
Purple loosestrife**^ Lythrum salicaria
Primrose willow
Large-flower** (T) Ludwifia grandiflora
Water primrose** (T) Lundwigia hexapetqala
Floating**(T) Ludwigia peploides
Ragweed* Ambrosia artemisiifolia
Ravennagrass* (T) Saccharum elaeagnifolium
Small broomrape** Orabanche minor
South American waterweed** Egeria densa (Elodea)
Spanish heath** Erica lusitanica
Spiny cocklebur** Xanthiu spinosum
Spikeweed** Hemizonia pungens
Spurge laurel** Daphne laureola
Squarrose knapweed** (T) Centurea virgate
Underlined Plants – Prior to 2020/2021 Aquatic Plants light colored (T) Designated weed high priority from ODA and Baker County
*State A Listing (not currently found in Baker County) ** State B Listing ^ BioControl Insects Available + Baker County OnlyBaker County Weed District - Noxious Weed List 2020-2021
Starthistle
Iberian* (T) Centaurea iberica
Purple* (T) Centaurea calcitrapa
Syrian bean-caper* Zygophyllum fabago
Thistle
Italian** Darduus pycnocephalus
Milk**^ Silybum marianum
Musk**^ Carduus nutans
Plumless* (T) Carduus acanthoides
Slenderflower**^ Carduus tenuiflorus
Smooth distaff* Carthamus baeticus
Taurian* (T) Carduus tauricum
+Turkish* Carduus cinereus
Welted (curley plumeless)*(T) Carduus crispus
Woolly distaff* (T) Carthamus lanatus
Velvetleaf** Abutilon theophrasti
Water solders Stratiotes aloides
Whitetop
Hairy** Lepidium pubescens
Lens-podded** Lepidium chalepensis
West Indian spongeplant Limnobium laevigatum
White bryonia Bryonia alba
Yellow archangel** Lamiastrum galeobdolon
Yellow floating heart (T) Nymphoides peltata
Yellow nutsedge** Cyperus esculentus
Yellowtuft (T) Alyssum murale, A. corsium
Underlined Plants – Prior to 2020/2021 Aquatic Plants light colored (T) Designated weed high priority from ODA and Baker County
*State A Listing (not currently found in Baker County) ** State B Listing ^ BioControl Insects Available + Baker County OnlyBaker County Weed District - Noxious Weed List 2020-2021
“A” Designated Weeds –
Mandatory Control County-wide and eligible for 50% Cost-Share Herbicide
Refund. A weed of known economic importance which occurs in the state/county in small enough
infestations to make eradication or containment possible; or is not known to occur, but its presence in
neighboring counties make future occurring in Baker County eminent.
Recommended action: Infestations are subject to eradication or intensive control when and where
found.
Buffalobur (T)** Solanum rostratum
Common crupina (T)** Crupina vulgaris
Hoary cress (Whitetop)** Lepidium draba
Hoary cress (Whitetop) is listed as an “A” weed in designated areas of the County. Pine
Valley, Baker Valley, Ebell Creek, Sutton Creek, Bowen Valley, and Sumpter areas are Mandatory
Control. Contact Baker County Weed Control for specific information at 541-523-0618.
+Horseweed (Mare’s tail) (T) Erigeron canadensis
Houndstongue (T) Cynoglossum officinale
Knapweed
Diffuse (T)**^ Centaurea diffusa
Russian (T)**^ Acroptiloon repens
Spotted (T)**^ Centaurea maculosa
Leafy spurge (T)**^ Euphorbia esula
+ Oxeye daisy (T) Leucanthemum vulgare
Perennial pepperweed (T)** Lepidium latifolium
Poison hemlock (T)^ Conium maculatum
+Queen Ann’s lace (Wild carrot) Daucus carota
Rush skeletonweed (T)**^ Chondrilla juncea
Salt Cedar**^ Tamarix ramosissima
+Scentless chamomile (T) Tripleurospermum maritimum
Tansy ragwort (T)** Senecio jacobaea
Yellowflag iris (T)** Iris pseudacorus
Yellow starthistle (T)** Centaurea solstitialis
Yellow toadflax (T) Linaria vulgaris
Underlined Plants – Prior to 2020/2021 Aquatic Plants light colored (T) Designated weed high priority from ODA and Baker County
*State A Listing (not currently found in Baker County) ** State B Listing ^ BioControl Insects Available + Baker County OnlyBaker County Weed District - Noxious Weed List 2020-2021
“B” Designated Weeds
Widespread and of Concern. Eligible for 50% Cost-Share Herbicide Refund.
A weed of economic importance which is regionally abundant, but which may have limited distribution is
some areas.
Recommended action: Limited to control at the county or regional level as determined on a site specific,
case-by-case basis. Where implementation of a fully integrated countywide management plan is not
feasible, biological insect control (when available) shall be the primary control method.
+ Chicory Cichorium intybus
+ Common mullein Verbascum thapsis
+ Common Tansy (T) Tanacetum vulgare
Dalmation Toadflax Linaria dalmatica
Field bindweed**^ (Morningglory) Convolvulus arvensis
+FullersTeasel (Common) Dipsacus fullonum
Hoary cress (Whitetop) Lepidium draba
NOTE!: Hoary cress is a “B” weed in all other areas of the County not listed in the above
section. Contact Baker County Weed Control for specific information at 541-523-0618
Indigo bush Amorpha fruticose
Jointed goatgrass Aegilops cylindrical
Medusahead wildrye Taeniatherum caput-medusae
Myrtle spurge Euphorbia myrsinites
Puncturevine^ Tribulus terrestris
Reed canary grass (Ribbongrass) (T)** Phalaris arundinadea var. Picta
Russian thistle ** Salsola iberica
St. Johnswort^ (Klamathweed) Hypericum perforatum
Sulfur cinquefoil Potentilla recta
Thistle
Bull Cirsium vulgare
Canada Cirsium arvense
Scotch Onopordum acanthium
Tree of Heaven Ailanthus altissima
Ventenata (African wiregrass)** Ventenata dubia
Underlined Plants – Prior to 2020/2021 Aquatic Plants light colored (T) Designated weed high priority from ODA and Baker County
*State A Listing (not currently found in Baker County) ** State B Listing ^ BioControl Insects Available + Baker County OnlyYou can also read
