Sisymbrium murale Diplotaxis muralis, the annual wall-rocket, is a species of flowering plant in the family Brassicaceae.

It has lobed leaves and its stems are topped with dense inflorescences of yellow, or occasionally light purple, flowers with small oval petals and large anthers.

[2] Several cytological and morphological studies have suggested that D. muralis originated from natural hybridization between D. tenuifolia and D.

In middle Europe, it is in Austria, Belgium, Czech Republic, Germany, Hungary, the Netherlands, Poland, Slovakia and Switzerland.

In southeastern Europe, within Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Greece, Italy, Malta, Montenegro, North Macedonia, Romania, Serbia, Slovenia and Ukraine.

[10] It has naturalised in the UK since 1778, when it was found in a field of oats raised from imported seeds from a ship wrecked on the Kent coast.