|Urtica dioica subsp. dioica|
Stinging nettles (Urtica dioica) are a type of plant which have stinging defensive hairs. Stinging nettles can be found in America, Europe and in Asia.
The hairs inject histamine and other chemicals that produce a stinging sensation when contacted by humans and other animals. The plant has been used as medicine, food, and fibre. Soaking stinging nettles in water or cooking removes the stinging chemicals from the plant, which allows them to be handled and eaten without injury.