Are There Any Stinging Plants?

We all know that the stings of bees and scorpions cause sharp pain, but do you know there is a plant that can sting too? It is called nettle which has many sharp thorns on its stems and leaves. The thorns are hollow just like a tube, and filled with poisonous liquid. If you happen to touch them you will immediately feel unbearable pain as if you were stung by a bee or scorpion. Because of this these thorns are called "stinging hair". They cause sharp pain when their poisonous liquid gets into the skin. If you are stung you will find many red spots appear, but if you don't touch them they won't cause you any problem The nettle grows thorns just to protect itself.