Giant ragweed
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Asterales
- family: Asteraceae
- genus: Ambrosia
- species: Ambrosia trifida
Coquitlam
British ColumbiaToronto
OntarioCharlottetown
Prince Edward Island
CanadaOlomouc
Olomoucký
Czech RepublicHalluin
B4
FranceMannheim
Baden-WürttembergLudwigshafen am Rhein
Rheinland-Pfalz
GermanyChihuahua
Chihuahua
MexicoTiel
Gelderland
NetherlandsUppsala
UppsalaGårdsten
Hammarkullen
Västra Götaland
SwedenTroy
West Blocton
AlabamaCairo
GeorgiaBerwyn
Forest Park
IllinoisBurlington
Emporia
KansasArabi
Baton Rouge
Ruston
LouisianaMoorhead
MinnesotaMinden
NebraskaChatham
New JerseyBoone
North CarolinaFargo
North DakotaCollege Station
Pinehurst
Sonora
TexasAlexandria
Belle Haven
Huntington
Purcellville
Woodstock
VirginiaWashington, D. C.
Washington, D.C.
United States