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Summary
Physical Characteristics
Arisaema tortuosum is a PERENNIAL growing to 0.6 m (2ft) by 0.3 m (1ft in).
See above for USDA hardiness. It is hardy to UK zone 7. It is in flower from May to June. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and is pollinated by Flies. The plant is not self-fertile.
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in full shade (deep woodland) semi-shade (light woodland) or no shade. It prefers moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
A. curvatum. (Roxb.)Kunth. Arum tortuosum.
Plant Habitats
Woodland Garden Dappled Shade; Shady Edge; not Deep Shade;
Edible Uses
Edible Parts: Root
Edible Uses:
Tuber - it must be thoroughly dried or cooked before being eaten[51, 177]. The tubers are boiled and eaten in Nepal, mixed with lime juice (Citrus aurantifolia) or another sour substance[272]. 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[2]. However, violent illness has still been known to follow a hearty meal of the tubers[2]. See also the notes above on toxicity.
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Vermifuge
The roots have been used as a vermifuge in cattle[240, 243]. The juice of the tubers is applied to the wounds of cattle in order to kill any parasites[272]. The dried powdered tubers is applied to snake bites[272]. The seeds have been mixed with salt and used to treat colic in sheep[240, 243, 272].
References More on Medicinal Uses
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Other Uses
Insecticide
The tubers have insecicidal properties[272].
Special Uses
References More on Other Uses
Cultivation details
Prefers a cool peaty soil in the bog garden, woodland garden or a sheltered border in semi-shade[134, 200]. 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[1, 200]. Plants are not very hardy outdoors in Britain and are normally best if given protection[1]. However, they can succeed outdoors in the milder areas of the country if the tubers are planted about 20cm deep[200]. Plants require protection from slugs[200]. 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[266].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
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Plant Propagation
Seed - best sown as soon as it is ripe in a shady position in a cold frame[134]. 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[134]. 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.
Other Names
If available other names are mentioned here
Native Range
TEMPERATE ASIA: China (Sichuan Sheng (southwest), Yunnan Sheng (northwest), Xizang Zizhiqu (south)) TROPICAL ASIA: Bhutan, India, Sri Lanka, Nepal, Pakistan (Himalayan region), Myanmar (north)
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status :
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
(Wall.)Schott.
Botanical References
51200266
Links / References
For a list of references used on this page please go here
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Subject : Arisaema tortuosum
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