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Uses

Toxic parts

Large quantities of the plant can be toxic. This is because it contains the enzyme thiaminase[1], a substance that can rob the body of the vitamin B complex[2]. In small quantities this enzyme will do no harm to people eating an adequate diet that is rich in vitamin B, though large quantities can cause severe health problems. The enzyme is destroyed by heat or thorough drying, so cooking the plant will remove the thiaminase[1]. The plant also contains equisetic acid - see the notes on medicinal uses for more information[3].

Edible uses

Notes

Strobil (the fertile shoots in spring) - cooked[4]. An asparagus substitute. Caution is advised, see the notes above on toxicity.

Roots - dried and then cooked[5]. A source of starch[4]. Caution is advised, see the notes above on toxicity.

A further report says that the peeled stems, base of the plant, root and tubers were eaten raw by the N. American Indians, the report went on to say that this may be inadvisable[6].

Material uses

The stems are very rich in silica[7]. They are used for scouring and polishing metal[8][7][9][10][11] and as a fine sandpaper[12][11]. The stems are first bleached by repeated wetting and drying in the sun[13]. They can also be used as a polish for wooden floors and furniture[9][14].

The infused stem is an effective fungicide against mildew, mint rust and blackspot on roses[15]. It also makes a good liquid feed[12]. Used as a hair rinse it can eliminate fleas, lice and mites[3][5]. A light pink dye is obtained from the stem[11].

The hollow stems have been used as whistles[5]. Another report says that the stem joints are pulled apart and used by children to produce a whistling sound[5].

Medicinal uses(Warning!)

Horsetails have an unusual chemistry compared to most other plants[16]. They are rich in silica, contain several alkaloids (including nicotine) and various minerals[16][17].

The plant is anticancer, anti-inflammatory, antispasmodic, diaphoretic, diuretic, expectorant, febrifuge, haemostatic, hypotensive and styptic[147, 176. 218, 279]. It also has an appetite-stimulating effect[17]]. The barren stems are used, they are most active when fresh but can also be dried and sometimes the ashes of the pant are used[7]. The plant is a useful diuretic when taken internally and is used in the treatment of kidney and bladder problems[7]. A decoction applied externally will stop the bleeding of wounds and promote healing[7].

The plant contains polyphenolic flavonoids with bactericidal activity[18].

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Spores - best collected as soon as they are ripe in the spring and surface-sown immediately on a sterile compost. Keep moist and pot up as soon as the plants are large enough to handle. Very difficult[19]. Division. The plants usually spread very freely when well sited and should not really need any assistance.

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



Cultivation

Prefers a moist soil with a pH between 6.5 and 7.5[19].

Plants are hardy to about -30°c[19]. The stems of this species were once exported to Britain in quantity from Holland so that they could be used as an abrasive for cleaning pots and pans[16].

Plants have a deep and penetrating root system and can be invasive. If grown in the garden they are best kept in bounds by planting them in a large container which can be sunk into the ground[19].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Equisetum hyemale. 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 Equisetum hyemale.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Equisetum hyemale
Genus
Equisetum
Family
Equisetaceae
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
5
Heat Zone
?
Water
moderate
Sun
full sun
Shade
light 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
    1 x meters
    Fertility
    ?
    Pollinators
    ?
    Flower Colour
    ?
    Flower Type

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    "image:Equisetum hyemale.jpg|248px" cannot be used as a page name in this wiki. "image:Equisetum hyemale.jpg|248px" cannot be used as a page name in this wiki.


    "image:Equisetum hyemale.jpg|248px" cannot be used as a page name in this wiki.

    "image:Equisetum hyemale.jpg|248px" cannot be used as a page name in this wiki.

    "image:Equisetum hyemale.jpg|248px" cannot be used as a page name in this wiki., "image:Equisetum hyemale.jpg|248px" cannot be used as a page name in this wiki., "image:Equisetum hyemale.jpg|248px" cannot be used as a page name in this wiki. "image:Equisetum hyemale.jpg|248px" cannot be used as a page name in this wiki., "image:Equisetum hyemale.jpg|248px" cannot be used as a page name in this wiki., "image:Equisetum hyemale.jpg|248px" cannot be used as a page name in this wiki.

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    References

    1. ? 1.01.1 Schofield. J. J. Discovering Wild Plants - Alaska, W. Canada and the Northwest. ()
    2. ? Frohne. D. and Pf?nder. J. A Colour Atlas of Poisonous Plants. Wolfe ISBN 0723408394 (1984-00-00)
    3. ? 3.03.13.2 Weiner. M. A. Earth Medicine, Earth Food. Ballantine Books ISBN 0-449-90589-6 (1980-00-00)
    4. ? 4.04.14.2 Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books ISBN 3874292169 (1984-00-00)
    5. ? 5.05.15.25.35.45.5 Moerman. D. Native American Ethnobotany Timber Press. Oregon. ISBN 0-88192-453-9 (1998-00-00)
    6. ? 6.06.1 Harrington. H. D. Edible Native Plants of the Rocky Mountains. University of New Mexico Press ISBN 0-8623-0343-9 (1967-00-00)
    7. ? 7.07.17.27.37.47.57.6 Grieve. A Modern Herbal. Penguin ISBN 0-14-046-440-9 (1984-00-00)
    8. ? 8.08.18.2 F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
    9. ? 9.09.19.2 Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim (1959-00-00)
    10. ? 10.010.1 Usher. G. A Dictionary of Plants Used by Man. Constable ISBN 0094579202 (1974-00-00)
    11. ? 11.011.111.211.3 Turner. N. J. Plants in British Columbian Indian Technology. British Columbia Provincial Museum ISBN 0-7718-8117-7 (1979-00-00)
    12. ? 12.012.112.2 Hatfield. A. W. How to Enjoy your Weeds. Frederick Muller Ltd ISBN 0-584-10141-4 (1977-00-00)
    13. ? 13.013.1 Komarov. V. L. Flora of the USSR. Israel Program for Scientific Translation (1968-00-00)
    14. ? 14.014.1 Stuart. Rev. G. A. Chinese Materia Medica. Taipei. Southern Materials Centre ()
    15. ? 15.015.1 Holtom. J. and Hylton. W. Complete Guide to Herbs. Rodale Press ISBN 0-87857-262-7 (1979-00-00)
    16. ? 16.016.116.216.3 Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)
    17. ? 17.017.117.2 Medicinal Plants in the Republic of Korea World Health Organisation, Manila ISBN 92 9061 120 0 (1998-00-00)
    18. ? 18.018.1 Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. ISBN 0-917256-20-4 (1985-00-00)
    19. ? 19.019.119.219.3 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    20. ? Clapham, Tootin and Warburg. Flora of the British Isles. Cambridge University Press (1962-00-00)

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