👉 The herb weapon, also known as a stinging nettle or urticaria plant's sting, is a defensive mechanism employed by certain plants like nettles. When an animal or human touches the plant, microscopic hairs on its surface release histamine, causing a painful, itchy rash known as nettle rash or urticaria. This reaction serves as a deterrent against herbivores and can also protect the plant from being eaten by insects. The sting is a form of chemical warfare, designed to discourage unwanted contact and aid in the plant's survival.
