EPPO Global Database

• EPPO Code: VAISP
• Preferred name: Vallisneria spiralis
• Authority: Linnaeus

Mediterranean, Black Sea, Ukraine, Siberia, Central Asia, Western Asia, India, Bangladesh, Indochina, Africa (widespread, but absent from South Africa and limited distribution in western Africa). Much used as an aquarium plant, occasionally escaping and becoming naturalized. An evaluation in the Netherlands of its potential economic impact concluded that it was harmless.