Urtica dioica or stinging nettle is a herbaceous angiosperm dicotiledone.Alta up to 200 cm, prefers damp, rich in nitrogen, preferably shady. Large ovate leaves and opposite, lance-shaped, serrated and sharp. The female flowers are collected in the ear long before it, and are green, while the male flowers are grouped in erect spikes. It blooms from May to October. Leaves and stems are covered with trichomes (Hairs) that contain a substance irritating. When you touch the plant, the apex of the hair is broken and leaking a liquid irritant formed mainly by acetylcholine, histamine, serotonin and probably acid formico.Come the name suggests, the Urtica dioica is a dioecious plant, ie that there are plants that bear only female flowers and plants that bear only flowers maschili.Ricca of vitamin C, iron and nitrogen, can be used as food: the seeds in rice, in soups, in omelettes or even used to frittelle.Viene capelli.Utilizzata stop the fall of the ancient Greeks as a medicinal plant with anti-diarrheal properties, diuretic, cardiotonic and antianemic, employed in the Middle Ages fresh to treat, with the poison of his stinging hairs, gout and rheumatism. It was also beaten and weakened to weave fabrics (ramie) similar to hemp or lino.L 'nettle, thanks to the chlorophyll present in large amounts, can serve as a dye for delicate fabrics: leaves tinged with green, while the roots of yellow .
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