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Western US Invasive Plant EDRR Guide
Introduction to EDRR
Early Detection and Rapid Response (EDRR) is an approach to invasive species management that focuses on surveying and monitoring at-risk areas to find infestations at their earliest stages of invasion. Along with prevention, this method is the most successful, cost effective, and least environmentally damaging means of control.
 
If new invasive noxious weeds are allowed to go unchecked, economic losses will exceed the present control costs of eradication or containment by several orders of magnitude. After initial introduction of a new invasive plant, there is a short period of opportunity for eradication or containment. Once permanently established, a new invader becomes a long-term management
problem.
 
Print your copy of the Introduction to EDRR which includes these parts of the guide: the card key, table of contents, introduction to EDRR, EDRR survey methods, and introduction to biological control
 
Introduction to EDRR (pdf 292kb)
Shrubs
Oregon Department of Agriculture has compiled profiles of the weeds listed by the Oregon State Weed Board. Profiles include information about the weed, images, and locations in Oregon. Links have been created for listed species in Oregon.
Common name Scientific name
What's Oregon doing?
Camelthorn
Alhagi maurorum
Not known to occur. "A" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Silverleaf nightshade
Solanum elaeagnifolium
Not known to occur."A" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Syrian bean-caper
Zygophyllum fabago
Not known to occur. "A" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Portuguese broom
Cytisus striatus
Active control projects are occurring
in Lane and Douglas Counties. "B,T" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Purple loosestrife
Lythrum salicaria
There are four established biocontrol agents in Oregon. "B,T" listed in Oregon.
Galerucella calmariensis
Galerucella pusilla
Hylobius transversovittatus
Nanophyes marmoratus
Saltcedar Tamarix ramosissima
There is one established biocontrol agent in Oregon. "B" listed in Oregon.
Diorhabda elongata
Tropical soda apple
Solanum viarum
Not known to occur in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
TurkeyberrySolanum torvum
Not known to occur in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
African boxthorn
Lycium ferocissimum
Not known to occur in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
 
Print your copy of the shrubs section of the guide:
Shrubs (pdf 736kb)

Vines
Oregon Department of Agriculture has compiled profiles of the weeds listed by the Oregon State Weed Board. Profiles include information about the weed, images, and locations in Oregon. Links have been created for listed species in Oregon.
 
Common name
Scientific name
What's Oregon doing?
Kudzu
Pueraria lobata
Active eradication projects occurring in Multnomah and Clackamas counties. "A,T" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Heartleaf hempvine
Mikania cordata
Not known to occur in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Mile-a-minute
Persicaria perfoliata
Not known to occur in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Creeping groundsel Senecio angulatus
Not known to occur in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
 
Print your copy of the vines section of the guide:
Vines (pdf 380kb)

Forbs
Oregon Department of Agriculture has compiled profiles of the weeds listed by the Oregon State Weed Board. Profiles include information about the weed, images, and locations in Oregon. Links have been created for listed species in Oregon.
 
Common name Scientific name
What's Oregon doing?
Squarrose knapweed Centaurea virgata
Active eradication projects occuring in Jefferson, Grant, and Malheur Counties. "A,T" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Iberian and purple starthistle Centaurea iberica & calcitrapa Active eradication project occuring in Clackamas county. "A,T" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Woolly and smooth distaff thistle
Carthamus lanatus & baeticus
Active eradication projects occuring in Douglas, Josephine and Curry counties. "A,T" listed in Oregon.Please call 1-866-INVADER if you find
this species in Oregon.
Plumeless thistle Carduus acanthoides
Active eradication projects occuring in Grant and Klamath counties. "A,T" listed in Oregon. Please call 1-866-INVADER if you find
this species in Oregon.
Orange hawkweedHieracium aurantiacum
Active eradication projects occuring in Hood River, Wasco, Clackamas, Union, Deschutes, and Harney counties. "A,T" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Yellow-flowered hawkweedsHieracium piloselloides
Hieracium pratense
Hieracium pilosella
Hieracium floribundum
Active eradication projects occuring in Wallowa, Hood River and Clackamas counties. 
Please call 1-866-INVADER if you find
this species in Oregon.
Giant hogweedHeracleum mantegazzianum
Active eradication projects occuring in Clatsop, Columbia, Tillamook, Washington, Yamhill, Polk, Multnomah, Clackamas, Marion, Linn, and Lane counties. PUBLIC HEALTH HAZARD! "A,T" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Paterson's curse Echium plantagineum
Active eradication projects occuring in Linn and Douglas counties. "A.T" listed in Oregon.
Please call 1-866-INVADER if you find

this species in Oregon.
Coltsfoot Tussilago farfara
Not known to occur. "A" listed in Oregon.
Please call 1-866-INVADER if you find

this species in Oregon.
African rue Peganum harmala
Active eradication projects occuring in Crook county. "A" listed in Oregon.
Please call 1-866-INVADER if you find

this species in Oregon.
Texas blueweed Helianthus ciliaris Not known to occur. "A" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Skeletonleaf bursageAmbrosia tomentosa
Not known to occur. "A" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Common bugloss Anchusa officinalis
Active control projects occurring in Umatilla, Wallowa, Union, and Baker counties. "B,T" listed in Oregon.
Please call 1-866-INVADER if you find

this species in Oregon.
Garlic mustard Alliaria petiolata
Active control projects occurring in Multnomah, Washington, Clackamas, and Jackson counties. "B,T" listed in Oregon.
Please call 1-866-INVADER if you find

this species in Oregon.
Japanese knotweed Polygonum cuspidatum
Active control projects occurring throughout Oregon. "B,T" listed in Oregon.
Rush skeletonweed Chondrilla juncea
There are four biocontrol agents in Oregon.
Bradyrrhoa gilveolella
Cystiphora schmidti
Eriophyes chondrillae
Puccinia chondrillina
Goatsrue
Galega officinalis
Not known to occur. "A" listed in Oregon
Please call 1-866-INVADER if you find
this species in Oregon.
Onionweed Asphodelus fistulosus
Not known to occur in Oregon.
Please call 1-866-INVADER if you find

this species in Oregon.
Pom pom weed Campuloclinium macrocephalum
Not known to occur in Oregon.
Please call 1-866-INVADER if you find

this species in Oregon.
Narrow-leaved ragwort Senecio inaequidens
Not known to occur in Oregon.
Please call 1-866-INVADER if you find

this species in Oregon.
Senegal tea plant Gymnocoronis spilanthoides
Not known to occur in Oregon.
Please call 1-866-INVADER if you find

this species in Oregon.
Stemless thistle Onopordum accaulon
Not known to occur in Oregon.
Please call 1-866-INVADER if you find

this species in Oregon.
 
Print your copy of the forbs section of the guide:
Forbs (pdf 1.6MB)

Aquatics
Oregon Department of Agriculture has compiled profiles of the weeds listed by the Oregon State Weed Board. Profiles include information about the weed, images, and locations in Oregon. Links have been created for listed species in Oregon.
 
Common name
Scientific name
What's Oregon doing?
Yellow floating heart
Nymphoides peltataActive eradication projects occurring in Douglas, Lane, and Washington counties. "A" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
Hydrilla
Hydrilla verticillata
Not known to occur. "A" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.
European water chestnutTrapa natans
Not known to occur. "A" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.

Swamp stonecrop
Crassula helmsii
Not known to occur in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.

 
Print your copy of the aquatics section of the guide:
Aquatics (pdf 398 kb)

 

Grasses
Oregon Department of Agriculture has compiled profiles of the weeds listed by the Oregon State Weed Board. Profiles include information about the weed, images, and locations in Oregon. Links have been created for listed species in Oregon.
 
Common name
Scientific name
What's Oregon doing?
Cordgrasses
Spartina anglica
Spartina densiflora
Spartina patens
Spartina alterniflora
Active eradication projects occurring in Lane and Coos counties. "A,T" rated in Oregon. 
Please call 1-866-INVADER if you find
this species in Oregon.

Barbed goatgrass
Aegilops triuncialis
Active eradication projects occurring in Josephine county. "A,T" rated in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.

MatgrassNardus stricta
Active eradication projects occurring in Klamath county. "A" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.

Purple nutsedge
Cyperus rotundusNot known to occur. "A" listed in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.

Serrated tussock Nassella trichotoma
Not known to occur in Oregon.
Please call 1-866-INVADER if you find
this species in Oregon.

 
Print your copy of the grasses section of the guide:
Grasses (pdf 446kb)


Closing
Contacts and Information
Oregon Department of Agriculture
Noxious Weed Control Program
635 Capitol St NE
Salem, OR 97301
503-986-4621
http://oregon.gov/ODA/PLANT/WEEDS

US Department of Agriculture
APHIS PPQ
6135 NE 80th Ave Ste A-5
Portland, OR 97218
503-326-2140
http://www.aphis.usda.gov

Additional invasive plant information
Oregon WeedMapper
http://www.weedmapper.org
Montana State University Center for Invasive Plant Management
http://www.weedcenter.org
University of Montana Invaders Database System
http://invader.dbs.umt.edu
Western Society of Weed Science
http://www.wsweedscience.org
Weed Science Society of America
http://www.wssa.net

Acknowledgements
Produced in cooperation with the Plant Protection and Quarantine program of USDA's Animal and Plant Health Inspection Service.
Many thanks to the following individuals and organizations for help and support:

Beth Myers-Shenai, editor
Kathy LeaMaster, booklet design
Jo Davis, assistant editor, revision editor
Tim Butler, advisor
Tom Forney, advisor
Mitch Nelson, advisor
Gary Brown, advisor
Mark Hitchcox, advisor
Ken Ball, advisor
Colin Park, advisor
Shannon Brubaker, revision editor
USDA Forest Service
Bureau of Land Management
Oregon Department of Forestry
Cover photo by Shannon Brubaker

Print your copy of the closing section and the index of the guide:
Closing (pdf 60kb)
Index (pdf 116kb)