I was weeding an untended corner on the lottie yesterday, pulling the stuff up by hand and I have got the most horrible, painful red rash right up my arm. It's stinging like anything and coming up in small blisters now.
The main weed I was pulling was about 4ft tall, very shallow rooted with small clusters of yellow flowers on it. Can't give a photo has don't have digital camera. Any ideas on what it is. I've looked in my books but can't find a reference for it.
Thanks
