Is this plan poisonous to horses?

Asked April 10, 2017, 12:23 PM EDT

Hello, We recently bought property and plan on extending our fence to allow our horses to graze in the pasture. However, I noticed this plant is abundant in several patches in the field. What is this plant and is it poisonous or have any negative effects on horses? It somewhat resembles a small fern. I am located in the Viola area near Redland, OR. Thanks! Bailey

Clackamas County Oregon weed issues pastures and forages

1 Response

I would have a better chance to ID the plant if a photo was taken of the plant in question against a light background. Or you can take a sample of the plant to the Clackamas county OSU Extension Office in Oregon City.

You can send a photo directly to my email at:

gene.pirelli@oregonstate.edu