Medium to tall, erect, foetid plant, often reaching 1.5 metres or more in height. Leaves oval to elliptical, usually lobed and with jagged teeth. Flowers white (occasionally purplish) erect, funnel shaped, 50 to 100 mm long, solitary at the axils of the upper leaves. Sometimes in the forks of branches. Calyx large half the length of the corolla, sharply angled. Fruit an erect spiny egg shaped capsule.

Bare places, waste ground.

July to October.

Annual.

Irregular and spasmodic in appearances, mainly in southern Britain.

Uncommon in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 14 of the 617 tetrads.