Medium to tall rough, bristly plant. Lower leaves pinnately lobed, upper leaves unlobed: blunt toothed. Flowers white (sometimes yellow but never violet/purple as in Garden Radish) often with darker veins, 15 to 30 mm. Fruit beaded, 30 to 90 mm.

Cultivated and bare ground, roadsides.

May to September.

Annual or biennial.

Found fairly frequently throughout Britain, though many plants are probably casuals.

This plant may now be becoming scarce in Leicestershire and Rutland, where it has declined rapidly. In the 1979 Flora survey of Leicestershire it was found in 249 of the 617 tetrads.