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State noxious weed list & quarantine
Policy & Quarantine
The State noxious weed list is the official list for the State of Oregon. Maintained by the OSWB and Noxious Weed Control Program, the weed list is part of the noxious weed policy and classification system. The State noxious weed list is used to prioritize activities at the state level and provide direction for development of county weed lists, local control programs and guide the use of limited resources.
Noxious weed policy and classification (pdf)
Noxious weed listing process
The state noxious weed quarantine is established under administrative rule (OAR 603-052-1200).This rule prohibits import, transport, propagation or sale of select "A" and "B" State listed noxious weeds and plants on the Federal Noxious Weed List (7 C.F.R. 360.200). (NOTE: the quarantine is always one year behind the Noxious weed policy and classification system - this is done to allow for phase out process where agricultural crops are concerned)
Noxious weed quarantine list

2013 Noxious weed list changes
1.    “A” List
Common reed, Phragmities australis   

Meadow hawkweed, Hieracium caespitosum

2.    “B” List
Tree-of-heaven, Ailanthus altissima

False indigo bush, Amorpha fruticosa

Common reed, Phragmities australis - The plant has been found to be more abundant and control is difficult especially in large infestations. Assessment has been re-evaluated and modified.

Meadow hawkweed, Hieracium caespitosum - Known infestation levels of meadow hawkweed are now beyond the level of eradication making it difficult to allow available resources to accommodate active eradication and containment programs to continue at current levels. However, in some instances there are high priority resources that must be protected for these circumstances,
ODA recommended that meadow hawkweed remain on the “T” list to accommodate these situations.

3.    “T” List
Goatsrue, Galega officinalis - ODA and cooperators is actively engaged in control. All infestations are in the Portland Metro region. In addition, active monitor of eradicated site in Josephine County continue.
Noxious weed profiles
To learn more about listed noxious weed species please visit noxious weed profiles.
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.
Noxious weed profiles