Plants can contain quite high levels of oxalic acid, which is what gives the leaves of many members of this genus an acid-lemon flavour. Perfectly alright in small quantities, the leaves should not be eaten in large amounts since the oxalic acid can lock-up other nutrients in the food, especially calcium, thus causing mineral deficiencies. The oxalic acid content will be reduced if the plant is cooked. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition
Dark green to brown and dark grey dyes can be obtained from the roots of many species in this genus, They do not need a mordant
The dried and powdered root has a cleansing and detergent affect on the teeth
The root is alterative, astringent, cholagogue, deobstruent, depurative, detergent, laxative and mildly tonic
. It can cause or relieve diarrhoea according to the dose, harvest time and relative concentrations of tannin(astringent) and anthraquinones (laxative) that are present
. It is used internally in the treatment of piles, bleeding of the lungs, various blood complaints and also chronic skin diseases
. Externally, it is applied to various skin diseases, ulcers etc
The root has been used with positive effect to restrain the inroads made by cancer, being used as an alterative and tonic
. The root is harvested in early spring and dried for later use
. Some caution is advised in its use since excess doses can cause gastric disturbance, nausea and dermatitis
Seed - sow spring or autumn in situ.
Division in spring.
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A plant of shallow water
Problems, pests & diseases
Associations & Interactions
There are no interactions listed for Rumex aquaticus. Do you know of an interaction that should be listed here? edit this page to add it.
Polycultures & Guilds
There are no polycultures listed which include Rumex aquaticus.
This table shows all the data stored for this plant.
Material uses & Functions
Native Climate Zones
Adapted Climate Zones
Native Geographical Range
Root Zone Tendancy
? 1.01.11.21.31.4 Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)
? 2.02.1 Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing (1976-00-00)
? 3.03.1 Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. ISBN 0-02-544950-8 (1974-00-00)
? 4.04.14.24.18.104.22.168 Grieve. A Modern Herbal. Penguin ISBN 0-14-046-440-9 (1984-00-00)
? 5.05.15.2 Foster. S. & Duke. J. A. A Field Guide to Medicinal Plants. Eastern and Central N. America. Houghton Mifflin Co. ISBN 0395467225 (1990-00-00)
? 6.06.1 Clapham, Tootin and Warburg. Flora of the British Isles. Cambridge University Press (1962-00-00)
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