herbs nettle leaf

Urtica diocia, is a member of the Urticaceae family native to Europe, Asia, Northern Africa, and Western North America. Nettles are an erect perennial herb, growing to five feet or so. It has creeping roots, square stems, lance-shaped leaves with serrated edges, and clusters of small green flowers. It is named for the millions of hair like needles covering its leaves and stem that pack a dose of formic acid when they burst.