EPPO Global Database

• EPPO Code: URTDI
• Preferred name: Urtica dioica
• Authority: Linnaeus

Euromediterranean region (except southeast), Siberia, Central Asia, Western Asia, Himalayas,  India, China (western, including Tibet). A very familiar perennial weed of waste ground, with stinging hairs on the leaves and stems. Used in traditional medicine. The nominate subspecies is from the Old World, while other subspecies (q.v.) are found only in America. Introduced in Russian Far East, South Africa, Canada (British Columbia, eastern provinces, including Greenland), USA (western and eastern, including Alaska), Central America, South America (Colombia, Bolivia, eastern Brazil, southern cone), New Zealand 

WSSA list of weeds in North America