After reading recently about hay that killed multiple horses in Wisconsin (though, it was blister bettles not a plant) I'm a little paranoid about what I'm feeding my horses and have been taking a closer look. We just rolled out a new round bale this afternoon and I noticed quite a bit of this orangish plant. It looks like maybe it had flowered? It's not very stocky - very slender stem. What is it? And if it is safe for horses to consume? The hay came from southeast Michigan, where we live. Thanks so much!