Rumex acetosa (PROSEA)
- Protologue: Sp. pl. 1: 337 (1753).
- Rumex acetosella sensu Pham Hoang Ho (1970).
- Sorrel (En)
- Cambodia: slök mchuu
- Vietnam: rau chua, rau bó xôi, toan thảo.
Native to Eurasia, now widely distributed in the temperate regions of the northern hemisphere, and cultivated in Indo-China.
In Europe, R. acetosa is used as a diuretic, and is said to improve resistance to infections. In Vietnam, the leaves are used in local medicine for the treatment of constipation, furuncles and ringworm. The leaves are also eaten raw or cooked as a vegetable and have a sour taste. Cultivated in Vietnam as a medicinal herb and as a vegetable.
- A dioecious, perennial herb, 30-80 cm tall, stem sometimes branched, tinged red, roots thick and long.
- Basal leaves sagittate, lobes directed backward, 3-11 cm × 0.5-3.5 cm, cauline leaves few.
- Inflorescence a narrow, loose panicle; male flowers with all perianth segments alike, 2-3 mm long, female flowers with outer perianth segments 1 mm long, reflexed, inner segments pinkish-red, orbicular-cordate, 3-5 mm long, tubercled at base.
- Nutlet ellipsoid.
R. acetosa occurs in humid meadows, along roadsides and canals.
455, 473, 647, 914.
- Nguyen Thi Do
- See also under Rumex (PROSEA Vegetables) for the vegetable use.