Practical
Plants

Rumex longifolius

a perennial member of the Rumex genus in the family Polygonaceae.

No photo available

Taxonomy and growth

Genus
Rumex
Life cycle
perennial
Height
1.2 m
Fertility
Wind
Flower type
hermaphrodite
Pollinators
Wind

Uses

Toxicity

Toxicity warning. The historical record reports a hazard for this plant. Do not use it to decide which parts are safe to eat or use medicinally.

This section contains historical Plants For A Future notes marked noncommercial.

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[8].

Edible uses

This section contains historical Plants For A Future notes marked noncommercial.

Leaves - cooked[2]. Harvested as they appear through the ground, they are eaten as a vegetable for their antiscorbutic action[5]. Seed - ground into a powder and used in gruel or added to cereal flours when making bread etc[1][2].

Plant part
Leaves
Plant part
Seed

Medicinal uses

Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.

This section contains historical Plants For A Future notes marked noncommercial.

The whole plant, but especially the root, is alterative, astringent, cholagogue, deobstruent, stomachic and tonic[9][7].

Product or use
Alterative
Product or use
Astringent
Product or use
Cholagogue
Product or use
Deobstruent
Product or use
Stomachic
Product or use
Tonic

Material uses

This section contains historical Plants For A Future notes marked noncommercial.

Although no specific mention has been made for this species, 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[3].

Product or use
Dye

Environment

Range
Europe, including Britain, from Scandanavia south and east to the Pyrenees, Caucasus and C. Asia.
Habitat
By rivers, in ditches and in damp grassy places[4].
Light
full sun
Shade tolerance
light shade
Water
moderate
Soil textures
sandy, loamy, clay
Soil pH
acid, neutral, alkaline
Drainage
well drained
Tolerates Nutritionally Poor Soil
No
Drought
intolerant

Propagation

This section contains historical Plants For A Future notes marked noncommercial.

Seed - sow spring in situ. Division in spring.

Cultivation

This section contains historical Plants For A Future notes marked noncommercial.

Succeeds in most soils but prefers a deep fertile moderately heavy soil that is humus-rich, moisture-retentive but well-drained and a position in full-sun or part shade[6].

References

  1. Kavasch. B. Native Harvests. Vintage Books 1979-00-00 ISBN 0-394-72811-4

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  2. Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976-00-00

    ↩1↩2

  3. Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. 1974-00-00 ISBN 0-02-544950-8

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  4. Clapham, Tootin and Warburg. Flora of the British Isles. Cambridge University Press 1962-00-00

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  5. Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications 1972-00-00 ISBN 0-486-20459-6

    ↩

  6. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

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  7. Lust. J. The Herb Book. Bantam books 1983-00-00 ISBN 0-553-23827-2

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  8. Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. 1995-00-00 ISBN 0-7513-020-31

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  9. Grieve. A Modern Herbal. Penguin 1984-00-00 ISBN 0-14-046-440-9

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