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Porteresia coarctata - (Roxb.) Tateoka

Common Name Wild rice. Uri. Tropical wild rice
Family Poaceae
USDA hardiness 10-12
Known Hazards None known
Habitats It is a tropical plant. It grows in mangrove forests and in saline estuaries. It grows in coastal places.
Range Origin: S. Asia. Native to India, Sri Lanka, Bangladesh, and Myanmar.
Edibility Rating    (3 of 5)
Other Uses    (3 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care (info)
Tender Moist Soil Wet Soil Water Plants Full sun
Porteresia coarctata Wild rice. Uri. Tropical wild rice

Porteresia coarctata Wild rice. Uri. Tropical wild rice


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A form of wild rice that grows in saline estuaries in India, Sri Lanka, Bangladesh, and Myanmar and is harvested and eaten locally. The plant is A salt-tolerant wild rice that grows in saline estuaries. It is as pioneer species in the succession process of mangrove formation along the estuaries of India. May also be known as as Oryza coarctata Roxb.

Physical Characteristics

 icon of manicon of flower
Porteresia coarctata is a PERENNIAL growing to 2 m (6ft) by 0.1 m (0ft 4in) at a fast rate.
See above for USDA hardiness. It is hardy to UK zone 10. The flowers are pollinated by Wind.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and can grow in nutritionally poor soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in saline soils.
It cannot grow in the shade. It prefers moist or wet soil and can grow in water.

UK Hardiness Map US Hardiness Map


Indoryza coarctata (Roxb.) A.N.Henry & B.Roy. Oryza coarctata Roxb. Oryza triticoides Griff. Sclerophyllum coarctatum (Roxb.). Griff.


Edible Uses

Edible Parts: Seed
Edible Uses:

Edible Portion: Seeds. Perennial grains have been a dream of the sustaiable agriculture movement for some time promising to marry the carbon and agroecological benefits of perennials to the annual staples we know and love. The task of perennializing grains is a slow and laborious process but some progress is being made. Wild rice species have proven to be tremendous gene reservoirs to increase domesticated rice yield, quality, and resistance to diseases and insects. Wild rice species have furnished genes for the hybrid rice revolution, exhibit yield-enhancing traits and have shown tolerance to biotic and abiotic stress. Among the wild relatives of rice, P. coarctata shows considerable adaptation to salinity. Porteresia coarctata is currently wild-harvested and grown for erosion control and coastal protection. Carbon Farming Solutions - Staple Crop: balanced carb (The term staple crop typically refers to a food that is eaten routinely and accounts for a dominant part of people's diets in a particular region of the world) [1-1].

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.

None Known

References   More on Medicinal Uses

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Other Uses

Grown for erosion control and coastal protection. The plant is salt-tolerant, and is seen as a possibly important source of salt-tolerance genes for transfer to other rice species. P. coarctata act as pioneer species in the succession process of mangrove formation along the estuaries of India

Special Uses

Carbon Farming

References   More on Other Uses

Cultivation details

Management: Standard  Regional Crop  Staple Crop: Balanced carb

Climate: tropical. Humidity: humid. It is closely related to Oryza australiensis. P. coarctata grows in abundance along the eastern and western coasts of India, Pakistan and Bangladesh shows considerable adaptation to salinity. Porteresia, a tetraploid (2n = 4x = 48) distant wild rice relative, is a monotypic genus occurring as an associate of mangroves along the coastal belts. Carbon Farming Solutions - Cultivation: regional crop. Management: standard (Describes the non-destructive management systems that are used in cultivation) [1-1].

Carbon Farming

  • Management: Standard  Plants grow to their standard height. Harvest fruit, seeds, or other products. Non-Destructive management systems.
  • Regional Crop  These crops have been domesticated and cultivated regionally but have not been adopted elsewhere and are typically not traded globally, Examples in this broad category include perennial cottons and many nuts and staple fruits.
  • Staple Crop: Balanced carb  (0-15 percent protein, 0-15 percent oil, with at least one over 5 percent). The carbohydrates are from either starch or sugar. Annuals include maize, wheat, rice, and potato. Perennials include chestnuts, carob, perennial fruits, nuts, cereals, pseudocereals, woody pods, and acorns.

References   Carbon Farming Information and Carbon Sequestration Information

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Other Names

If available other names are mentioned here

Wild rice. Uri. Tropical wild rice, Perennial Rice

Native Plant Search

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Found In

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

Native to India, Sri Lanka, Bangladesh, and Myanmar.

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.

None Known

Conservation Status

IUCN Red List of Threatened Plants Status : This taxon has not yet been assessed

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther

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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(Roxb.) Tateoka

Botanical References

Links / References

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