CAHNRS > Hortsense > High Alert Invasive Plants

High Alert Invasive Plants

Overview

The plants listed here are of special interest. They may be listed as a Washington State Class A Noxious Weed with specific control measures required or they may be considered a host for High Alert Invasive Insects.

Classes of Noxious Weeds in Washington State

A

Class A noxious weeds are non-native species whose distribution in Washington State is still limited.

B

Class B noxious weeds are nonnative species whose distribution is limited to portions of Washington State.

C

Class C noxious weeds are widespread in Washington or are of special interest to the agricultural industry.

Search the Washington State Noxious Weed Control Board site

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