EPPO Global Database

• EPPO Code: ERICA
• Preferred name: Erigeron canadensis
• Authority: Linnaeus

Canada, USA, Mexico, Central America, South America (Venezuela to Bolivia, Brazil). A troublesome weed. Introduced in the Euromediterranean region generally, Caucasus, Siberia, Russian Far East, Central Asia, Western Asia (Iraq to Pakistan), Himalayas, India, Indochina (Cambodia, Vietnam), Malesia (Philippines), China (northern, Taiwan), Korea, Japan, Africa (Angola and Mozambique to South Africa), Australia (except North), New Guinea

WSSA list of weeds in  North America.