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Summary
Sweetcorn Root or Calathea allouia is a tropical, perennial plant that grows up tp 1.5 m tall. It is native to northern South America and the Caribbean. Other common names include Guinea arrowroot, Alleluia, and Aria. Tuberous and egg shaped roots have high starch content and are consumed when cooked. Young tender flower spikes are also cooked. The leaves are large and used as tamales wrap. The flowers are white and in spiral.
Physical Characteristics
Calathea allouia is an evergreen Perennial growing to 2 m (6ft) by 1 m (3ft 3in) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 10.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in very acid and very alkaline soils.
It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Maranta allouia Aubl.; Phrynium allouia Aubl.; Also as Allouya americana (Lamk.); Curcuma americana
Plant Habitats
Edible Uses
Edible Parts: Flowers Leaves Root
Edible Uses:
Edible portion: Tubers, Root, Flowers, Leaves - flavour, Vegetable. Root - cooked[ 46 ]. Rich in starch[ 317 ]. The crisp cooked tubers are very agreeable with a flavour like sweetcorn[ 301 ]. It is used in salads, stews and fish dishes. Their unique texture makes them a gourmet item[ 301 ]. Used in similar ways to potatoes[ 200 ]. A commercially cultivated vegetable. The tubers are 2 - 8cm long and 2 - 4cm in diameter[ 418 ]. Young tender flower spikes - cooked[ 301 , 331 ]. The leaves are used for wrapping tamales and other foods, to which they impart flavour[ 301 , 331 ]. Tubers are 6.6% protein on a dry matter basis.
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
Basketry
Other uses rating: Low (1/5). In former times, the plant played a more important role for making blankets, mattresses, pillows, baskets and umbrellas[ 317 ].
Special Uses
References More on Other Uses
Cultivation details
A plant mainly of the moist, lowland tropics, where it is found at elevations up to 1,400 metres. It grows best in areas where annual daytime temperatures are within the range 22 - 31c, but can tolerate 16 - 35c[ 418 ]. It prefers a mean annual rainfall in the range 1,000 - 2,000mm, but tolerates 700 - 2,800mm[ 418 ]. Grows best in full sun or light shade[ 418 ]. Prefers a moist, humus-rich, freely-draining soil[ 200 ]. Prefers a pH in the range 6 - 7, tolerating 5.5 - 7.5[ 418 ]. Crops are produced in about 9 - 14 months from planting out the roots[ 418 ]. Tuber yields of 2 - 15 tonnes/ha have been reported[ 418 ].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
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Plant Propagation
Seed - Division of tubers Cuttings of basal shoots.
Other Names
If available other names are mentioned here
Sweetcorn Root or Calathea allouia. Other Names: Agua bendita, Allelouia, Alleluia, Aria, Cocurito, Curcuma d'Amerique, Dale dale, Dali dali, Guinea arrowroot, Lairem, Laren, Leren, Lerenes, Lleren, Sweet corn root, Sweet-corm-root, Topee Tambu, Topi-tambu, Topinambour.
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Found In
Countries where the plant has been found are listed here if the information is available
Found In: Africa, Amazon, Antilles, Asia, Australia, Belize, Brazil, Caribbean, Central America, Colombia, Costa Rica, Cuba, Dominican Republic, East Africa, Ecuador, Egypt, El Salvador, Guadeloupe, Guatemala, Guiana, Guyana, Haiti, Hispaniola, Honduras, India, Indochina, Indonesia, Madagascar, Malaysia, Martinique, Mexico, Nicaragua, North Africa, North America, Pacific, Panama, Peru, Philippines, Puerto Rico, SE Asia, South America, Sri Lanka, St Lucia, St. Vincent and Grenadines, Trinidad and Tobago, Trinidad, Venezuela, Vietnam, West Indies.
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.
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
(Aubl.) Lindl.
Botanical References
Links / References
For a list of references used on this page please go here
A special thanks to Ken Fern for some of the information used on this page.
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Subject : Calathea allouia
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