EPPO Global Database

• EPPO Code: GASPA
• Preferred name: Galinsoga parviflora
• Authority: Cavanilles

USA (southwest), Mexico, Caribbean (Jamaica, Hispaniola, Puerto Rico), South America (except Brazil). Introduced in Euromediterranean, Caucasus, Central Asia, Siberia, Russian Far East, Western Asia, Himalayas, Indochina (except Laos, Cambodia), Malesia (Malaya, Java, Philippines), China (including Taiwan), Japan, Korea, Sudan, Ethiopia, Cameroon and southern Africa generally, Madagascar, USA, Canada, New Guinea, Australia (except Northern) 

WSSA list of weeds in North America