Convolvulaceae: a creeping or climbing perennial to 3m. The attractive flowers are 15-20mm across, funnel-shaped, either white or pink with broad, white stripes, blooming from June to September. The leaves are arrow-shaped, 2-5cm long. Hedgerows, fields, waste places and railway lines. Native to temperate regions of both Hemispheres, including Britain.
The plant has been used as a flavouring in a liqueur called 'Noyeau'.
The root, as well as the resin made from the root, has cholagogue, diuretic, laxative and strongly purgative properties. The dried root contains 4.9% resin. The juice of the root is used in the treatment of fevers. A tea made from the flowers is laxative and is also used in the treatment of fevers and wounds. A cold tea made from the leaves is laxative and is also used as a wash for spider bites or taken internally to reduce excessive menstrual flow.
A green dye is obtained from the whole plant.
Sow seed in spring or autumn. An easy pretty plant especially the pink flowered form, but can become a pest in the garden unless you restrict its roots in a pot or the like.