Tansy ragwort can be confused with either or St. John's wort Hypericum perforatum ), since all three grow to about 3 feet tall, have clusters of yellow flowers and bloom in the same part of the year.

Tansy ragwort is a familiar sight in our rural communities. It likes a cool, wet climate, well-drained soils, and full to partial sun. You can see patches of tansy in pastures, fields, grasslands ...

CORVALLIS — Tansy ragwort has made a comeback in western Oregon through a combination of weather and a “down cycle” for the three insects used to control this toxic weed.

Tansy Ragwort is blooming now, producing lots of little yellow, daisy-like flowers on straight stems 2 to 4 feet high with divided, rather lacy foliage. Pretty as a yarrow, ...

Tansy ragwort is particularly harmful to small farms and those with horses. Rosemary Collins, owner of Pony Up Rescue for Equines in Olalla, said it must be pulled out as soon as it’s noticed ...

Tansy ragwort (Senecio jacobaea) is a biennial from Eurasia. It is often found in poorly-managed pastures, riparian areas, roadsides, forests and gardens. This plant may reach six feet tall with ...

PORT ORCHARD, Wash. - Dana Coggon is trying to stop an epidemic while cruising country roads at 40 mph. There it is, she said as she pulled off a road in the rural community of Olalla. She got out ...

BREMERTON — People throughout Western Washington are reporting unusual numbers of a poisonous weed called tansy ragwort. The state Noxious Weed Control Board’s Wendy DesCamp says the plants ...

After 25-year fight, native plant species are recovering ...

HELENA -- They infest a portion of Montana the size of Florida and Arkansas combined, and go by names like tansy ragwort, yellow toadflax and houndstongue. One species, knapweed, takes ...

Property owners pulling up noxious weed tansy ragwort can bring it to Castle Rock for free disposal Saturday. The Cowlitz County Noxious Weed Control Program is accepting bagged flowering tansy ...

I SHARE James DG Davidson's concern over the lack of maintenance of roadside verges (Letters, September 12). But his suggestion that tansy and ragwort are one and the same is incorrect, other than ...