Polygonaceae: a short upright perennial to 30cm. found on well-drained acid soils. The flowers are greenish, in loose, slender spikes, appearing from May-August. The arrow-shaped but with basal lobes pointing forwards. Widespread and common in its habitats. Native to Most of Europe, including Britain, temperate Asia, N. America and Greenland.
The leaves can be eaten raw or cooked. They make a thirst-quenching on their own, or can be added to salads, used as a potherb or pureed and used in soups. A delicious lemon-like flavour, liked by most people who try them, they can be rather overpowering in quantity and are more generally used as a flavouring in mixed salads. The leaves can also be dried for later use. The leaves are available all through the winter, especially in mild weather or if a little protection is given to the plants.
The fresh or dried leaves have astringent, diuretic, laxative and refrigerant properties. They are used to make a cooling drink in the treatment of fevers and are especially useful in the treatment of scurvy.
Easily grown and tolerant plant, it succeeds in most soil, but preferring a moist moderately fertile well-drained soil in a sunny position. Established plants are tolerant of considerable neglect, surviving even in dense weed growth.
Surface sow seeds spring in situ. Leaves can be harvested within 8 weeks from sowing.