White Bryony
Each year the WA State Noxious Weed Control Board reviews the State Noxious Weed List.  If there is adequate scientific information and enough demand from weed boards and individuals, weeds can be added, dropped, or reclassified.  Example - two years ago Russian thistle was requested to be added to the list (failed), last year Russian olive was requested (passed).  To find out more about how weeds are put on the list, please contact the Washington State Noxious Weed Control Board.

The State Weed List is organized into three (3) categories. 

Class A weeds are non-native species with a limited distribution.  Preventing new infestations and eradicating existing infestations is the highest priority.  Eradication is required by law.

Class B weeds are non-native species presently limited to portions of the state or county.  Class B species are designated for control in regions where they are not yet widespread.  Preventing infestations in these areas is a high priority.  In regions where a Class B species is already abundant, control is decided at the local level, with containment as the primary goal. 

Class C weeds are non-native weeds.  Many of these species are widespread.  Long-term programs of suppression and control are a local option, depending upon local threats and the feasibility of control in local areas.

2017 Franklin County Weed List

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