United Kingdom

I recently removed a lot of plant/weed. It was very fast growing without a flower very thick stem , probably a good inch or more. Easy to remove. It had a typeof small bulb that looked as though it was about to flower, but never did only turned to more leaves. It had grown to about 4 foot over the spring/summer. What is it ? I had a bad allergic reaction to it and would like to know just in case. Can anyone help?

• 3 Sep, 2008