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''Curcuma angustifolia'' is one of over 80 species belonging to the genus ''
Curcuma ''Curcuma'' () is a genus of plants in the family Zingiberaceae that contains such species as turmeric and Siam tulip. They are native to Southeast Asia, southern China, the Indian Subcontinent, New Guinea and northern Australia. Some specie ...
'' , in the family
Zingiberaceae Zingiberaceae () or the ginger family is a family of flowering plants made up of about 50 genera with a total of about 1600 known species of aromatic perennial herbs with creeping horizontal or tuberous rhizomes distributed throughout tropical ...
. This species is native to the
Indian subcontinent The Indian subcontinent is a physiographical region in Southern Asia. It is situated on the Indian Plate, projecting southwards into the Indian Ocean from the Himalayas. Geopolitically, it includes the countries of Bangladesh, Bhutan, India ...
and is more commonly known as East Indian arrowroot or narrow-leaved turmeric in
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national id ...
, and is called "yaipan" in Manipuri, "Aipah" in Thadou-Kuki, "tikhur" in
Hindi Hindi (Devanāgarī: or , ), or more precisely Modern Standard Hindi (Devanagari: ), is an Indo-Aryan languages, Indo-Aryan language spoken chiefly in the Hindi Belt region encompassing parts of North India, northern, Central India, centr ...
, and "Koova" കൂവ in
Malayalam Malayalam (; , ) is a Dravidian language spoken in the Indian state of Kerala and the union territories of Lakshadweep and Puducherry ( Mahé district) by the Malayali people. It is one of 22 scheduled languages of India. Malayalam wa ...
, and is called "Kutupah" in Poula. In the Eastern hemisphere, the plant plays an integral role in many cultures.


Description

''Curcuma angustifolia'' is
rhizomatous In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow h ...
herb. It is a
perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...
and a flowering plant, with modest and small spiked
inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed ...
s of three or four yellow, funnel-shaped flowers within tufts of pink terminal bracts (coma bracts). The bracts are boat-shaped and encase the entire
perianth The perianth (perigonium, perigon or perigone in monocots) is the non-reproductive part of the flower, and structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals) or tepals when ca ...
of the flower. As is common to the genus, the flowers of ''C. angustifolia'' have double anthers, a slender
style Style is a manner of doing or presenting things and may refer to: * Architectural style, the features that make a building or structure historically identifiable * Design, the process of creating something * Fashion, a prevailing mode of clothing ...
, and a globular stigma. Flowers are usually seen at the beginning of the
monsoon A monsoon () is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with annual latitudinal osci ...
(rainy) season from July to August, before the leaves have had the chance to fully develop, and they continue to flower even after the leaves have fully developed. The
calyx Calyx or calyce (plural "calyces"), from the Latin ''calix'' which itself comes from the Ancient Greek ''κάλυξ'' (''kálux'') meaning "husk" or "pod", may refer to: Biology * Calyx (anatomy), collective name for several cup-like structures ...
of the flower is usually long and very hairy, with 3 lobes that may appear to be triangular or obtuse. The
corolla Corolla may refer to: *Corolla (botany), the petals of a flower, considered as a unit *Toyota Corolla, an automobile model name * Corolla (headgear), an ancient headdress in the form of a circlet or crown * ''Corolla'' (gastropod), a genus of moll ...
is white, and usually grows to be about long with glabrous lobes that are also hairy.
Seed A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiosper ...
s are a reddish-brown color. Leaves are typically simple, green, glabrous, and lanceolate, with margins that are entire. They appear in an opposite arrangement and are
deciduous In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, a ...
. They display fine parallel venation off of a central midrib. The upper surface of the leaves are usually a darker shade of green than the lower surfaces. Leaves may grow to about length and in width. The leaves also smell and taste similar to
turmeric Turmeric () is a flowering plant, ''Curcuma longa'' (), of the ginger family, Zingiberaceae, the rhizomes of which are used in cooking. The plant is a perennial, rhizomatous, herbaceous plant native to the Indian subcontinent and Southeast ...
. Of great significance to ''C. angustifolia'' is its strong rhizome, which can grow to be up to in length. The rhizome of this plant is the primary source of its nutritive and medicinal properties. ''C. angustifolia'' also uses its rhizome to reproduce asexually via vegetative propagation. The plant in its entirety typically grows to be from in height.


Distribution and habitat

''C. angustifolia'' is most commonly found growing wild in
India India, officially the Republic of India ( Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the ...
, especially in the northeast and western coastal plains and hills. Such areas include the states of Maharashtra,
Madhya Pradesh Madhya Pradesh (, ; meaning 'central province') is a state in central India. Its capital city, capital is Bhopal, and the largest city is Indore, with Jabalpur, Ujjain, Gwalior, Sagar, Madhya Pradesh, Sagar, and Rewa, India, Rewa being the othe ...
,
Andhra Pradesh Andhra Pradesh (, abbr. AP) is a state in the south-eastern coastal region of India. It is the seventh-largest state by area covering an area of and tenth-most populous state with 49,386,799 inhabitants. It is bordered by Telangana to t ...
,
Himachal Pradesh Himachal Pradesh (; ; "Snow-laden Mountain Province") is a state in the northern part of India. Situated in the Western Himalayas, it is one of the thirteen mountain states and is characterized by an extreme landscape featuring several peak ...
,
Orissa Odisha (English: , ), formerly Orissa ( the official name until 2011), is an Indian state located in Eastern India. It is the 8th largest state by area, and the 11th largest by population. The state has the third largest population of S ...
(Odisha), Chhattisgarh,
Tamil Nadu Tamil Nadu (; , TN) is a state in southern India. It is the tenth largest Indian state by area and the sixth largest by population. Its capital and largest city is Chennai. Tamil Nadu is the home of the Tamil people, whose Tamil languag ...
, and
Kerala Kerala ( ; ) is a state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile regions of Cochin, Malabar, South C ...
. This species can also be found in
Bangladesh Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the List of countries and dependencies by population, eighth-most populous country in the world, with a population exceeding 165 million pe ...
,
Burma Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...
, Laos,
Nepal Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is ma ...
, and
Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
.


Cultivation

''Curcuma angustifolia'' requires temperatures at or above . It prefers shady areas and grows best in moist soil that is sandy, pebbly, or
loam Loam (in geology and soil science) is soil composed mostly of sand ( particle size > ), silt (particle size > ), and a smaller amount of clay (particle size < ). By weight, its mineral composition is about 40–40–20% concentration of sand–si ...
y."Hortipedia: The GardenInfoPortal" ''C. angustifolia'' is often found at the edges or in the clearings of forests.


Common uses

While commonplace in Eastern culture and medicine, ''C. angustifolia'' has only recently earned the attention of the Western scientific community.


Food uses

This species of plant has nutritional value as a source of
starch Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants for energy storage. Worldwide, it is the most common carbohydrate in human diets ...
for
Indian food Indian cuisine consists of a variety of regional and traditional cuisines native to India. Given the diversity in soil, climate, culture, ethnic groups, and occupations, these cuisines vary substantially and use locally available spices, herb ...
s. The rhizomes of ''C. angustifolia'' are typically ground into a flour which can then be mixed together with milk or water to form a nutritious meal. This flour was a common commercial crop in the 1800s. Most importantly, the West has begun to notice its potential as a source of nutrition and as a non-irritating diet for patients with specific chronic ailments, recovering from
fever Fever, also referred to as pyrexia, is defined as having a temperature above the normal range due to an increase in the body's temperature set point. There is not a single agreed-upon upper limit for normal temperature with sources using val ...
s, or experiencing irritations of the
gastrointestinal tract The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans a ...
, the lungs, or the
excretory system The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body. The dual function of excr ...
. A drink including ''C. angustifolia'' as an ingredient is also used as a replacement of breast-milk, or as a nutritional supplement for babies a short while after
weaning Weaning is the process of gradually introducing an infant human or another mammal to what will be its adult diet while withdrawing the supply of its mother's milk. The process takes place only in mammals, as only mammals produce milk. The infa ...
. It is found as a primary ingredient in
cake Cake is a flour confection made from flour, sugar, and other ingredients, and is usually baked. In their oldest forms, cakes were modifications of bread, but cakes now cover a wide range of preparations that can be simple or elaborate, ...
s,
fruit preserves Fruit preserves are preparations of fruits whose main preserving agent is sugar and sometimes acid, often stored in glass jars and used as a condiment or spread. There are many varieties of fruit preserves globally, distinguished by the met ...
,
biscuit A biscuit is a flour-based baked and shaped food product. In most countries biscuits are typically hard, flat, and unleavened. They are usually sweet and may be made with sugar, chocolate, icing, jam, ginger, or cinnamon. They can also be ...
s, and
pudding Pudding is a type of food. It can be either a dessert or a savoury (salty or spicy) dish served as part of the main meal. In the United States, ''pudding'' means a sweet, milk-based dessert similar in consistency to egg-based custards, in ...
s.


Medicinal uses

The rhizomes of ''C. angustifolia'' are used to soothe coughs and as such is used to treat
bronchitis Bronchitis is inflammation of the bronchi (large and medium-sized airways) in the lungs that causes coughing. Bronchitis usually begins as an infection in the nose, ears, throat, or sinuses. The infection then makes its way down to the bronchi ...
. Essential oils from ''C. angustifolia'' have been extracted and are used in
antifungal medication An antifungal medication, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis (thrush), serious systemic infections such as c ...
s. Compounds in the leaves of this plant have also been shown to have potential as
antibacterial An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention ...
agents.


See also

*
Curcuma aromatica ''Curcuma aromatica'' (common name: wild turmeric) is a member of the genus '' Curcuma'' belonging to the family Zingiberaceae. Botanically close to '' Curcuma australasica'', wild turmeric has been widely used as a cosmetic herbal in South Asia ...


References

{{Taxonbar, from=Q3596013 angustifolia Flora of the Indian subcontinent Flora of Laos Flora of Myanmar Plants described in 1810 Taxa named by William Roxburgh