Giant ragweed
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Asterales
- family: Asteraceae
- genus: Ambrosia
- species: Ambrosia trifida
Coquitlam
British Columbia
Toronto
Ontario
Charlottetown
Prince Edward Island
Canada
Olomouc
Olomoucký
Czech Republic
Halluin
B4
France
Mannheim
Baden-Württemberg
Ludwigshafen am Rhein
Rheinland-Pfalz
Germany
Chihuahua
Chihuahua
Mexico
Tiel
Gelderland
Netherlands
Uppsala
Uppsala
Gårdsten
Hammarkullen
Västra Götaland
Sweden
Troy
West Blocton
Alabama
Cairo
Georgia
Berwyn
Forest Park
Illinois
Burlington
Emporia
Kansas
Arabi
Baton Rouge
Ruston
Louisiana
Moorhead
Minnesota
Minden
Nebraska
Chatham
New Jersey
Boone
North Carolina
Fargo
North Dakota
College Station
Pinehurst
Sonora
Texas
Alexandria
Belle Haven
Huntington
Purcellville
Woodstock
Virginia
Washington, D. C.
Washington, D.C.
United States
Destelbergen