Ambrosia artemisiifolia Ragweed

Ambrosia artemisiifolia, Ragweed, is an annual composite that is native to North America. It is a wind-pollinated species which produces copious amounts of pollen which contibute significantly to hay fever outbreaks on the American continent. It occurs occasionally a casual alien in ruderal habitats in Britain, e.g. dockyards, roadsides and waste ground generally, but it has not been recorded often in West Glamorgan

Neophyte