Phytopharmacological Review of Urtica dioica

Urtica dioica, commonly known as stinging nettle.It is a medicinal plant.It belongs to the Urticaceae family.U. diocia is widely distributed in temperate and tropical regions of Europe, Asia, and America.The plant's stems and leaves have minute trichomes that release formic acid, histamine, acetylcholine, and serotonin causing temporary skin irritation when touched.These trichomes serve as a natural defense mechanism against insect predators, and they are particularly abundant in locations with high nitrogen and heavy metal levels.Despite its stinging properties, stinging nettle has tremendous ecological adaptability, thriving in a variety of environments including woodlands, riverbanks, and roadsides.Its antioxidative activities and pigment production differ depending on the climate, with colder places showing higher antioxidant properties.A new study of the U. diocia plant intends to investigate the amount and composition of polyphenols, carotenoids, chlorophylls, and antioxidant activity in nettle leaves and stalks collected at various phenological stages across distinct settings in Croatia.Morphologically stinging nettle is characterized by soft green leaves arranged oppositely on upright stems, with distinctive features including serrated edges and acuminate tips.The plant produces small greenish or brownish blooms, with male and female flowers bearing stamens or pistils, respectively.The leaves and stems have both non-stinging and stinging hairs, the latter releasing irritant chemicals upon contact with the skin