Noxious weeds

Noxious Weeds
4:48 pm
Wed August 17, 2011

Toxic weed rears its flowered head In Northwest

Tansy ragwort, a member of the sunflower family native to Western Europe, is toxic to horses and cattle.
Courtesy of Washington State Noxious Weed Control Board

This year's prolonged wet weather is having the side effect of re-invigorating a noxious weed. The Northwest is seeing a comeback of tansy ragwort, a toxic species of sunflower that farmers thought they had vanquished years ago.

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