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Uses

Toxic parts

The plant contains calcium oxylate crystals. These cause an extremely unpleasant sensation similar to needles being stuck into the mouth and tongue if they are eaten but they are easily neutralized by thoroughly drying or cooking the plant or by steeping it in water.

Edible uses

Notes

Tuber - it must be thoroughly dried or cooked before being eaten[1][2]. The tubers are boiled and eaten in Nepal, mixed with lime juice (Citrus aurantifolia) or another sour substance[3]. The tubers are buried in masses in pits until acetous fermentation takes place, they are then dug up, washed and cooked, by which means their acrimonious principles are in part dispersed[4]. However, violent illness has still been known to follow a hearty meal of the tubers[4]. See also the notes above on toxicity.

Material uses

The tubers have insecicidal properties[3].

Unknown part

Medicinal uses(Warning!)

The roots have been used as a vermifuge in cattle[5][6]. The juice of the tubers is applied to the wounds of cattle in order to kill any parasites[3]. The dried powdered tubers is applied to snake bites[3]. The seeds have been mixed with salt and used to treat colic in sheep[5][6][3].

Unknown part

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - best sown as soon as it is ripe in a shady position in a cold frame[7]. Stored seed remains viable for at least a year and can be sown in spring in the greenhouse but it will probably require a period of cold stratification. Germination usually takes place in 1 - 6 months at 15°c[7]. When large enough to handle, prick the seedlings out into individual pots and grow them on in light shade in the greenhouse for at least a coupe of years until the corms are more than 20mm in diameter. Plant out into their permanent positions whilst they are dormant. Division of tubers when the plant dies down in late summer.

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



Cultivation

Prefers a cool peaty soil in the bog garden, woodland garden or a sheltered border in semi-shade[7][8]. Prefers a loamy or peaty soil and will tolerate a sunny position if the soil is moist but not water-logged and the position is not too hot or exposed[9][8].

Plants are not very hardy outdoors in Britain and are normally best if given protection[9]. However, they can succeed outdoors in the milder areas of the country if the tubers are planted about 20cm deep[8]. Plants require protection from slugs[8].

Most species in this genus are dioecious, but they are sometimes monoecious and can also change sex from year to year. This species usually bears either monoecious or all male flowers[10].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Arisaema tortuosum. 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 Arisaema tortuosum.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Arisaema tortuosum
Genus
Arisaema
Family
Araceae
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
7
Heat Zone
?
Water
moderate
Sun
full sun
Shade
permanent 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

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    References

    1. ? 1.01.11.2 Polunin. O. and Stainton. A. Flowers of the Himalayas. Oxford Universtiy Press (1984-00-00)
    2. ? 2.02.1 Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books ISBN 3874292169 (1984-00-00)
    3. ? 3.03.13.23.33.43.53.63.7 Manandhar. N. P. Plants and People of Nepal Timber Press. Oregon. ISBN 0-88192-527-6 (2002-00-00)
    4. ? 4.04.14.2 Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications ISBN 0-486-20459-6 (1972-00-00)
    5. ? 5.05.15.2 Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement). Council of Scientific and Industrial Research, New Delhi. (1986-00-00)
    6. ? 6.06.16.2 Medicinal Plants of Nepal Dept. of Medicinal Plants. Nepal. (1993-00-00)
    7. ? 7.07.17.2 Rice. G. (Editor) Growing from Seed. Volume 2. Thompson and Morgan. (1988-00-00)
    8. ? 8.08.18.28.38.4 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    9. ? 9.09.1 F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
    10. ? 10.010.1 [Flora of China] (1994-00-00)

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