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Arisaema costatum - (Wall.)Mart.

Common Name
Family Araceae
USDA hardiness 6-9
Known Hazards 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.
Habitats Wet cool woodlands and cliffs, often forming large colonies. Shrubberies, 2000 - 2600 metres[51]. Grasslands in forest areas at elevations of 2300-2400 metres[266].
Range E. Asia - Himalayas in C. and E. Nepal.
Edibility Rating    (2 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care (info)
Fully Hardy Moist Soil Full shade Semi-shade Full sun
Arisaema costatum


Arisaema costatum

 

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Summary


Physical Characteristics

 icon of manicon of flower
Arisaema costatum is a PERENNIAL growing to 0.6 m (2ft) by 0.4 m (1ft 4in).
It is hardy to zone (UK) 7. It is in flower from June to July. 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: acid, neutral and basic (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

Habitats

Woodland Garden Dappled Shade; Shady Edge; not Deep Shade;

Edible Uses

Edible Parts: Root
Edible Uses:

Root - cooked. It is boiled, dried and then ground into a powder[2, 177]. The tuber is 3 - 5cm in diameter[266]. Some caution is advised, see the notes above on toxicity.

References

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.


None known

References

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An important new book from PFAF. It focuses on the attributes of plants suitable for food forests, what each can contribute to a food forest ecosystem, including carbon sequestration, and the kinds of foods they yield. The book suggests that community and small-scale food forests can provide a real alternative to intensive industrialised agriculture, and help to combat the many inter-related environmental crises that threaten the very future of life on Earth.

Read More

FOOD FOREST PLANTS

Other Uses

None known

Special Uses

References

Cultivation details

Prefers a cool peaty soil in the bog, woodland garden or a sheltered border in semi-shade[200]. Prefers a loamy or peaty soil[1] and will tolerate a sunny position if the soil is moist but not water-logged and the position is not too exposed[1, 200]. Plants are nearly hardy in Britain, they normally succeed outdoors in the milder areas of the country[1]. Tubers should be planted about 15cm deep[233]. Only plant out full sized tubers and mulch them with organic matter in the winter[200]. Plants multiply quickly once they are established[200]. Plants need protection from slugs[200]. This species has very large leaves, to 40cm long[200]. Most species in this genus are dioecious, but they are sometimes monoecious and can also change sex from year to year.

References

Temperature Converter

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Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.

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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

Found In

Countries where the plant has been found are listed here if the information is available

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 :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Arisaema amurenseTian Nan XingPerennial0.5 4-8  LMFSNM23 
Arisaema consanguineumTian Nan XingPerennial1.0 6-9  LMFSNM13 
Arisaema dracontiumGreen-DragonPerennial0.8 4-8  LMFSNM11 
Arisaema flavum Perennial0.4 6-9  LMFSNM21 
Arisaema jacquemontii Perennial0.6 5-9  LMFSNM20 
Arisaema negishii Perennial0.0 -  LMFSNM20 
Arisaema peninsulare Perennial0.2 -  LMFSNM10 
Arisaema quinatumIndian Turnip, Jack in the pulpitPerennial1.0 0-0  LMFSNM10 
Arisaema ringens Perennial0.3 6-9  LMFSNM01 
Arisaema serratum Perennial0.9 4-8  LMFSNM21 
Arisaema thunbergii Perennial0.6 -  LMFSNM01 
Arisaema tortuosumArisaemaPerennial0.6 6-9  LMFSNM22 
Arisaema triphyllumJack In The Pulpit, Dragonroot, Indian TurnipPerennial0.6 4-9 SLMFSNM32 
Arisaema utile Perennial0.5 4-8  LMFSNM20 

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.

 

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Author

(Wall.)Mart.

Botanical References

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Subject : Arisaema costatum  
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