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Uses

Toxic parts

Although no specific mention has been made for this species, there have been reports that some members of this genus can cause photosensitivity in susceptible people. Many species also contain oxalic acid (the distinctive lemony flavour of sorrel) - whilst not toxic this substance can bind up other minerals making them unavailable to the body and leading to mineral deficiency. Having said that, a number of common foods such as sorrel and rhubarb contain oxalic acid and the leaves of most members of this genus are nutritious and beneficial to eat in moderate quantities. Cooking the leaves will reduce their content of oxalic acid. 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[1].

Edible uses

Notes

Young plant - cooked[2][3]. Seed - raw or cooked. It is rather small and fiddly to utilize.

Leaves

Material uses

A blue dye is obtained from the leaves of this plant[4][2][5]. The leaves produce about 4 - 5% indigo by hydrolysis and acidification[6].

Unknown part

Dye

Medicinal uses(Warning!)

The stems and the leaves are antidote, anti-inflammatory, antiphlogistic, antipyretic and depurative[7][8][9][10]. Their use increases the phagocytosis of white blood cells and decreases the permeability of the capillaries[8]. The indigo pigment in the leaves is used[8]. It is used in the treatment of freckles, pimples, erysipelas, mumps, thrush, epidemic protitis, infantile convulsions and high febrile conditions of children[8].

The leaves and fruits are used in Korea to help protect the liver and to treat burns and food poisoning caused by eating fish[10]. The fruits are antidote and febrifuge[9].

The plant is anti-inflammatory[9].

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - sow spring in a cold frame. Germination is usually free and easy. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer if they have reached sufficient size. If not, overwinter them in a cold frame and plant them out the following spring after the last expected frosts.

Practical Plants is currently lacking information on propagation instructions of Polygonum tinctorium. Help us fill in the blanks! Edit this page to add your knowledge.



Cultivation

Succeeds in an ordinary garden soil[11] but prefers a moisture retentive not too fertile soil in sun or part shade[12]. Requires full sun and a fertile soil[5]. Prefers hot humid climates[5].

A frost tender plant[5], it can be grown as a half-hardy annual in Britain. This plant used to be cultivated as a dye plant[13][6].

Plants seem to be immune to the predations of rabbits[14].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Polygonum tinctorium. 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 Polygonum tinctorium.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Polygonum tinctorium
Genus
Polygonum
Family
Polygonaceae
Imported References
Edible uses
Medicinal uses
Material uses & Functions
Botanic
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Provides forage for
Provides shelter for
Environment
Hardiness Zone
?
Heat Zone
?
Water
moderate
Sun
full sun
Shade
no shade
Soil PH
Soil Texture
Soil Water Retention
Environmental Tolerances
    Ecosystems
    Native Climate Zones
    None listed.
    Adapted Climate Zones
    None listed.
    Native Geographical Range
    None listed.
    Native Environment
    None listed.
    Ecosystem Niche
    None listed.
    Root Zone Tendancy
    None listed.
    Life
    Deciduous or Evergreen
    ?
    Herbaceous or Woody
    ?
    Life Cycle
    Growth Rate
    ?
    Mature Size
    Fertility
    ?
    Pollinators
    Flower Colour
    ?
    Flower Type











    References

    1. ? Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)
    2. ? 2.02.12.22.3 Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing (1976-00-00)
    3. ? 3.03.1 Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books ISBN 3874292169 (1984-00-00)
    4. ? 4.04.1 Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim (1959-00-00)
    5. ? 5.05.15.25.35.4 Buchanan. R. A Weavers Garden. ()
    6. ? 6.06.16.26.3 Komarov. V. L. Flora of the USSR. Israel Program for Scientific Translation (1968-00-00)
    7. ? 7.07.1 Kariyone. T. Atlas of Medicinal Plants. ()
    8. ? 8.08.18.28.38.4 Yeung. Him-Che. Handbook of Chinese Herbs and Formulas. Institute of Chinese Medicine, Los Angeles (1985-00-00)
    9. ? 9.09.19.29.3 Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. ISBN 0-917256-20-4 (1985-00-00)
    10. ? 10.010.110.2 Medicinal Plants in the Republic of Korea World Health Organisation, Manila ISBN 92 9061 120 0 (1998-00-00)
    11. ? F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
    12. ? 12.012.1 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    13. ? 13.013.1 ? Flora Europaea Cambridge University Press (1964-00-00)
    14. ? Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. ISBN 0 460 86048 8 (1990-00-00)

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