Ambrosia trifida(AMBTR)
Distribution details in United Kingdom
Current pest situation evaluated by EPPO on the basis of information dated
2014: Transient
A. trifida was cultivated in Britain by 1699, but arose principally as a grain contaminant and was first recorded from the wild in 1897. It underwent a dramatic decline before 1970, as importation of loose cargoes at docks ceased and seed cleaning techniques improved.
* Online Atlas of the British and Irish Flora. http://www.brc.ac.uk/plantatlas/index.php?q=plant/ambrosia-trifida