Common ragweed (Ambrosia artemisiifolia, Asteraceae), originating from North America, is one of the most prominent invasive alien species in Europe.

Its pollen grains are carriers of noxious allergens that may induce severe symptoms in sensitized people.

Common ragweed is an important agricultural weed with a range that is likely to increase under climate change. It can produce yield losses in soybeans as high as 30%.

Ambrosia artemisiifolia is used in phytoremediation projects, removing heavy metals such as Lead from the soil.

The species name, artemisiifolia, is given because the leaves were thought to bear a resemblance to the leaves of Artemisia, the true wormwoods.