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Descurainia (weeds) Webb & Berthel. - (tansymustards)
The genus is widely distributed and contains around 40-50 species of herbs. The 2 species listed below are regarded as agricultural weeds which affect cereals or field crops like rape (canola). Flixweed (Descurainia sophia) is native to Europe and has been introduced into other regions like North America and eastern Asia. It can form dense stands.
The species of Descurainia grow up to 1 m in height and have upright stems with small yellow or whitish flowers. The genus is named after the French botanist François Descurain (1658–1749).
Type species: Descurainia sophia
Currently, the following species have been entered into the system: