Editing Colocasia

{{Short description|Genus of plants}}
{{For|the moth genus|Colocasia (moth)}}
{{Automatic taxobox
|image = Taimo Okinawa.jpg
|image_caption = ''[[Colocasia esculenta]]''
|display_parents = 2
|taxon = Colocasia
|authority = [[Heinrich Wilhelm Schott|Schott]]
|synonyms_ref = <ref name=iii/><ref name=grin>{{cite web |url=http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?2816 |title=''Colocasia'' Schott |author=GRIN |work=Taxonomy for Plants |publisher=[[United States Department of Agriculture|USDA]], [[Agricultural Research Service|ARS]], National Genetic Resources Program |location=National Germplasm Resources Laboratory, [[Beltsville, Maryland]] |date=October 5, 2007 |access-date=July 13, 2010 |author-link=Germplasm Resources Information Network |archive-url=https://web.archive.org/web/20121007023358/http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?2816 |archive-date=October 7, 2012 }}</ref>
|synonyms = ''Leucocasia'' <small>Schott</small>
|range_map = Colocasia distribution.svg
|range_map_caption = Natural range of the genus ''Colocasia''.
}}
[[File:Elephant ear plant with blossum.jpg|thumb|Elephant ear plant with yellow blossom]][[File:Elephant ear ("Colocasia") blossum 01.jpg|thumb|Elephant ear plant with blossom]]

'''''Colocasia''''' is a [[genus]]<ref name=ipni>{{cite web |url= http://www.ipni.org:80/ipni/advPlantNameSearch.do?find_genus=Colocasia&find_rankToReturn=spec&output_format=normal&query_type=by_query&back_page=plantsearch |title=Query Results for Genus ''Colocasia'' |work=[[International Plant Names Index|IPNI]] |access-date=February 13, 2010}}</ref><ref name=trop>{{cite web |url= http://www.tropicos.org/NameSubordinateTaxa.aspx?nameid=40012379 |title=Name - ''Colocasia'' Schott subordinate taxa |work=Tropicos |publisher=[[Missouri Botanical Garden]] |location=[[Saint Louis, Missouri]] |access-date=February 13, 2010}}</ref> of [[flowering plant]]s in the family [[Araceae]], native to Southeast Asia and the [[Indian subcontinent]]. Some species are widely cultivated and naturalized in other tropical and subtropical regions.<ref name=iii>{{Cite web|url=https://powo.science.kew.org/?name_id=46258|title=Plants of the World Online &#124; Kew Science|website=Plants of the World Online}}</ref><ref name=wlwetal>{{cite book |author1=Wagner, W. L. |author2=D. R. Herbst |author3=S. H. Sohmer  |name-list-style=amp |year=1999 |title=Manual of the Flowering Plants of Hawai'i. Revised edition. Vol. 2 |publisher=University of Hawaiʻi Press/Bishop Museum Press |page=1357}}</ref>

The names elephant-ear and [[cocoyam]] are also used for some other large-leaved genera in the Araceae, notably ''[[Xanthosoma]]'' and ''[[Caladium]]''. The generic name is derived from the ancient Greek word {{lang|grc-Latn|kolokasion}}, which in the [[Koine Greek]] of the [[1st century]] botanist [[Pedanius Dioscorides]] may have meant the edible roots of both [[taro]] (''C. esculenta'') and ''[[Nelumbo nucifera]]''.

The species ''Colocasia esculenta'' is [[invasive species|invasive]] in [[wetland]]s along the [[Gulf Coast of the United States]], where it threatens to displace native wetland plants.<ref>Keddy, P.A., D. Campbell, T. McFalls, G. Shaffer, R. Moreau, C. Dranguet, and R. Heleniak.  2007. The wetlands of lakes Pontchartrain and Maurepas: past, present and future.  Environmental Reviews 15: 1- 35.</ref>

==Description==
They are [[Herbaceous plant|herbaceous]] [[perennial plant]]s with a large [[corm]] on or just below the ground surface. The [[leaf|leaves]] are large to very large, {{convert|20|–|150|cm|in|abbr=on}} long, with a [[Leaf shape|sagittate]] shape. The elephant's-ear plant gets its name from the leaves, which are shaped like a large ear or shield. The plant reproduces mostly by means of rhizomes (tubers, corms), but it also produces "clusters of two to five fragrant inflorescences in the leaf axils".<ref>Brown, Deni. 2000. Aroids. Plants of the Arum Family. Timber Press, Oregon. p. 250.</ref> Like other members of the family, the plant contains an irritant which causes intense discomfort to the lips, mouth and throat. This acridity is caused in part by microscopic needle-like [[raphide]]s of [[calcium oxalate]] [[Hydrate|monohydrate]].<ref>{{cite journal |author=Bradbury, J. Howard |author2=Nixon, Roger W. | year = 1998 | title =The acridity of raphides from the edible aroids | journal =Journal of the Science of Food and Agriculture | volume = 76 | issue = 4 | pages = 608–616 | doi = 10.1002/(SICI)1097-0010(199804)76:4<608::AID-JSFA996>3.0.CO;2-2 | doi-access = free |bibcode=1998JSFA...76..608B }}</ref> It must be processed by cooking, soaking or fermenting – sometimes along with an acid (lime or tamarind) – before being eaten.<ref>{{cite book
 |title=The global diversity of taro: ethnobotany and conservation
 |editor=Ramanatha, R.V. |editor2=Matthews, P.J. |editor3=Eyzaguirre, P.B. |editor4=Hunter, D.
 |year=2010
 |publisher=Bioversity International
 |location=Rome (Italy)
 |isbn=978-92-9043-867-0
 |pages=9–10
 |url=http://www.bioversityinternational.org/e-library/publications/detail/the-global-diversity-of-taro-ethnobotany-and-conservation/}}
</ref>

==Species==

There are numerous species of ''Colocasia''.<ref name=iii/><ref name=ipni/><ref name=trop/><ref name=grinspecies>{{cite web |url=https://www.ars-grin.gov/cgi-bin/npgs/html/splist.pl?2816 |title=Species in GRIN for genus ''Colocasia'' |author=GRIN |work=Taxonomy for Plants |publisher=[[United States Department of Agriculture|USDA]], [[Agricultural Research Service|ARS]], National Genetic Resources Program |location=National Germplasm Resources Laboratory, [[Beltsville, Maryland]] |access-date=July 13, 2010 |author-link=Germplasm Resources Information Network}}</ref>

# ''[[Colocasia affinis]]'' <small>Schott</small> - Yunnan, Nepal, Assam, Bhutan, Bangladesh, Myanmar, eastern Himalayas 
# ''[[Colocasia antiquorum]]'' or [[eddoe]],<ref>{{cite web |url=http://www.theplantlist.org/tpl1.1/search?q=colocasia+antiquorum |title=The Plant List |access-date=15 February 2015}}</ref><ref>''Utilisation des aliments tropicaux: racines et tubercules'', FAO, Rome, 1990, p. 35. {{ISBN|92-5-202775-0}}, [https://books.google.com/books?id=jFRnIx2NRakC&dq=Eddoe&pg=PA35 google book].</ref> sometimes considered a [[synonym (taxonomy)|synonym]] of ''C. esculenta''.<ref>{{GRIN | ''Colocasia esculenta'' | 11177 | access-date = 15 February 2015}}</ref>
# ''Colocasia esculenta'' or taro <small>(L.) Schott</small> - taro, elephant-ear - native to southern China, the Indian subcontinent, Indochina, Sumatra; naturalized in other parts of Asia as well as Africa, southern Europe, South America, Central America, the West Indies, the southeastern United States, and many oceanic islands including Hawaii
# ''[[Colocasia fallax]]'' <small>Schott</small> - Tibet, Yunnan, Himalayas, northern Indochina
# ''[[Colocasia fontanesii]]'' <small>Schott</small> - Yunnan, eastern Himalayas, northern Indochina
# ''[[Colocasia hassanii]]''<small> H.Ara </small> -Bangladesh
# ''[[Colocasia lihengiae]]'' <small>C.L.Long & K.M.Liu</small> - Arunachal Pradesh, Yunnan
# ''[[Colocasia mannii]]'' <small>Hook.f.</small> - Assam, Nicobar Islands
# ''[[Colocasia menglaensis]]'' <small>J.T.Yin, H.Li & Z.F.Xu</small>  - Yunnan, Laos, Myanmar, Thailand, Vietnam 
# ''[[Colocasia oresbia]]'' <small>A.Hay</small> - Bangladesh, Sabah
# ''[[Colocasia tonoimo]]'' <small>A.Hay</small> - Unknown

A separate subgroup within the Colocasiae contains one species, which was previously called ''C. gigantea'':
# ''[[Leucocasia gigantea]]'' <small>(Blume) Hook.f.</small> &ndash; giant taro - southern China, Indochina, Malaysia, western Indonesia

==Ecology==
''Colocasia'' species are used as food plants by the [[Caterpillar|larvae]] of some [[Lepidoptera]] species including ''[[Palpifer|Palpifer murinus]]'' and ''[[Palpifer|Palpifer sexnotatus]]''.

== Cultivation ==
[[File:Starr 070730-7885 Colocasia esculenta.jpg|thumb|''C. esculenta'' corms]]
''[[Colocasia esculenta|C. esculenta]]'' and other members of the genus are cultivated as [[ornamental plant]]s, or for their edible [[corm]]s, a traditional [[starch]] staple in many tropical areas.

The plant can be grown in the ground or in large containers. They are grown outside year-round in subtropical and tropical areas. In temperate regions, they are planted out for the summer and dug up and stored over winter, dry and with ventilation to prevent fungal infection. They can be grown in almost any temperature zone as long as the summer is warm. Growth is best at temperatures between {{convert|20|and|30|C|F|abbr=on}}. The plants can be damaged if temperatures fall below {{convert|10|C|F|abbr=on}} for more than a few days.

The root [[tuber]] is typically planted close to the surface. The first signs of growth will appear in 1 to 3 weeks. The adult plant will need a minimum of at least {{convert|1|m2|sqft|abbr=on}} of space for good growth. They do best in [[compost]]-rich [[soil]] and in [[shade (shadow)|shade]], but will grow reasonably well in average soil provided it is moisture-retentive. The plants should not be left to go dry for too long; if this does happen, the leaves will wilt; watering will allow the plant to recover if done before they get too dry. Periodic fertilisation (every 3 to 4 weeks) with a common plant [[fertiliser]] will increase yields.

== Culinary uses ==
[[File:Colocasia leaf @ Kanjirappally.jpg|thumb|Colocasia leaves are well known for their [[Hydrophobe|hydrophobicity]].]]
The edible types are grown in the South Pacific and eaten like potatoes and known as [[taro]], [[eddoe]], and dasheen. The leaves are often boiled with coconut milk to make a soup.

[[Poi (food)|Poi]], a Hawaiian dish, is made by boiling the starchy underground stem of the plant then mashing it into a paste.<ref>World Book Encyclopedia</ref>

=== In the Mediterranean===
{{Main|Mediterranean cuisine|Greek cuisine}}
In [[Cyprus]], Colocasia has been in use since antiquity. Today it is known as kolokasi (Kολοκάσι). It is usually cooked with [[celery]] and pork or chicken, in a tomato sauce in casserole. "Baby" kolokasi is called "poulles": after being fried dry, red wine and coriander seed are added, and then it is served with freshly squeezed lemon. Lately, some restaurants have begun serving thin slices of kolokasi deep fried, calling them "kolokasi chips".

Apart from Cyprus, Colocasia is found in one other Mediterranean island, the Greek island of [[Ikaria]]. After the island was declared a [[Blue zone]] its culinary tradition has acquired some popularity and Colocasia is part of that tradition. The plant has been reported to have been a vital source of food during WW II.<ref>{{Cite web|url=https://www.visitikaria.gr/gr/%CE%B9%CE%BA%CE%B1%CF%81%CE%AF%CE%B1/%CE%B3%CE%B1%CF%83%CF%84%CF%81%CE%BF%CE%BD%CE%BF%CE%BC%CE%AF%CE%B1#.Y6itKOzP3Hg|title=Γαστρονομία &#124; Visit Ikaria|website=www.visitikaria.gr}}</ref> In Ikaria, after it is boiled it is usually eaten as a salad (with raw onions, herbs, olive oil, lemon etc.<ref>{{cite web | url=https://ikariologos.gr/kolokasi-salata-makrozoias-me-agaph-apo-thn-ikaria/ | title=Κολοκάσι σαλάτα της Μακροζωίας,……. με Αγάπη από την Ικαρία ! }}</ref>).

In [[Egypt]], the tubercles (or kolkas - arabic: قلقاس) are traditionally cut into cubes and cooked in a green soup with [[celery]], [[chard]], [[garlic]] and other herbs.<ref>{{Cite web |last=Samer |date=2018-02-01 |title=قلقاس باللحم مع ارز |url=https://elwasfa.com/%D9%82%D9%84%D9%82%D8%A7%D8%B3-%D8%A8%D8%A7%D9%84%D9%84%D8%AD%D9%85-%D9%85%D8%B9-%D8%A7%D8%B1%D8%B2/ |access-date=2024-07-15 |website=الوصفة |language=ar}}</ref> Commonly served with white [[vermicelli]] rice or eaten with [[pita]] bread dipped into the soup. Prepared mostly during the winter time for warmth and widely prepared on January 19th in Christian households as part of celebrating [[Coptic Orthodox Church|Coptic]] [[Epiphany (holiday)|epiphany]].<ref>{{Cite web |date=2023-01-17 |title=Why do Coptic Christians in Egypt Eat Taro on Feast of the Epiphany? {{!}} Egyptian Streets |url=https://egyptianstreets.com/2023/01/17/why-do-coptic-christians-in-egypt-eat-taro-on-feast-of-the-epiphany/ |access-date=2024-07-15 |language=en-US}}</ref> The broth for the soup can be prepared with beef stock and can have some cubes of beef as well.

=== In South Asia ===
{{Unreferenced section|date=May 2020}}
[[File:చేమదుంపలు కూర.jpg|thumb|Indian cuisine with Colocasia (curry)]]
[[File:Boiled,Peeled and Fried Colocasia.jpg|thumb|Indian cuisine with Colocasia]]
Both roots and leaves are eaten. In the Hindi-speaking belt of Northern [[India]] and in [[Pakistan]], the root is called ''arbi''.  Common preparations include cooking with curry, frying, and boiling. 

In Mithalanchal ([[Bihar]]), the leaf is called ''airkanchan'' and is curried.

In Gujarat, arbi leaves are used to make the dish ''patra.'' In Eastern part of Uttar Pradesh, arbi, known as ''arabi ka patta'', is used to make the dish ''sahina''. Arbi is also a very popular dish among the Hindu community in South Africa, where it is known as ''patha''. In [[Manipur]], the leaves are used in the [[Meitei people|Meitei]] ethnic cuisine, locally known as ''utti'' (pronounce ''ootti''). The leaves are called ''paangkhoklaa'' by the [[Meiteis]], while the edible [[corms]] are known as ''paan. Paan'' is often cooked with [[Fermentation|fermented]] [[soy beans]] to make curries. It is also used to make [[eromba]], a Meitei side dish.

In [[Odisha]], the root is called ''saru''. it is an important ingredient in ''dalma'', a popular Odia dish. The leaves used in a dish called "saru magura",  made with rice batter inside the leaf which is steamed and fried.

In [[Kerala]], the leaves are used to make ''chēmbilacurry'', ''chēmbilāppam'', and the roots are used in ''chembü puzhukkü''. Various other recipes also exist locally. The stem and root are used in the preparation of stew and curry. In Kerala, ''chembu'' is planted in the month of May and can be harvested in December of the same year.

In [[Maharashtra]], the leaves are called ''aloo'' and are used to make a sweet and sour curry with peanuts and cashew nuts that is commonly cooked during marriages. The leaf bases are mixed with curd to make the side dish ''dethi''. The leaves are also coated in besan and fried to make the snack ''paatwadi'' or ''aloowadi''.

In [[Gujarat]], this leaf is called arbi (or ''alvi'') and is used to make [[Patra (dish)|patra]]. This is a steamed dish similar to patrode, but with gram flour instead of the rice flour used in patrode. As in Maharashtra, the leaves are eaten as a fried snack.

In [[Nagaland]], the leaves are dried, powdered, kneaded into a dough and baked into biscuits. These biscuits are burnt and dissolved in boiling water before being added into meat dishes to create a thick, flavourful dry gravy.

In [[Bengal]], the plant is called ''kachu''. Its leaves are used to wrap fish and prawns for steaming to make ''bhapa mach'' (steamed fish). The roots are used to make a thick creamy curry in which to cook prawns. The roots and stems are grated with coconut and used to create a chutney.

In [[South Karnataka]] particularly in the coastal regions , the leaves are made into a traditional dish called as 'patrode'or 'patrude'.

In [[Himachal Pradesh]], in northern India, taro corms are known as [[ghandyali]] in Mandi districts, and the plant is also known as kachalu in the Kangra district. The dish called patrodu is made using taro leaves rolled with corn or gram flour and boiled in water. Another dish, pujji is made with mashed leaves and the trunk of the plant and ghandyali or taro corms are prepared as a separate dish. In Shimla, a pancake-style dish, called patra or patid, is made using gram flour.

== In folklore ==
In [[Meitei mythology]] and [[Meitei folklore]] of [[Manipur]], Colocasia ({{langx|mni|{{Script|Mtei|ꯄꯥꯟ}}}}<ref>{{Cite web |last=Sharma |first=H. Surmangol |date=2006 |title=Learners' Manipuri-English dictionary |url=https://dsal.uchicago.edu/cgi-bin/app/sharma_query.py?qs=Colocasia+%EA%AF%84%EA%AF%A5%EA%AF%9F&matchtype=default |access-date=2023-04-05 |website=dsal.uchicago.edu |publisher=[[University of Chicago]] |page=114 |language=mni, en |quote=pān ꯄꯥꯟ /pán/ n. a plant of a genus (Colocasia) of the araceae family. pāndum /pán.dum/ n. the fleshy, underground stem of this plant. Morph: pān‑dum [a plant of Colocasia genus...‑round].}}</ref>) plants are mentioned. One notable example is the [[Meitei folktale]] of the {{langnf|mni|[[Hanuba Hanubi Paan Thaaba]]|[[Old Man and Old Woman planting Colocasia]]}}{{efn|These said plants are also said to be [[Taro]], which is a species of the Colocasia genus itself. However, in some cases, these plants are said to be other species of the very Colocasia genus.}}). In this lore, the old man and his wife, the old woman, were tricked by a group of monkeys to plant the Colocasia plants in an unusual way.<ref>{{Cite book|url=http://archive.org/details/dli.language.1358/page/n51/mode/1up|title=Folktales of Manipur|last1=B. Jayantakumar Sharma|last2=Dr. Chirom Rajketan Singh|date=2014|page=51}}</ref><ref>{{Cite book|url=https://books.google.com/books?id=TpM8DAAAQBAJ&dq=hanube+and+hanuba&pg=PT33|title=New Folktales of Manipur|last=Oinam|first=James|date=2016-05-26|publisher=Notion Press|isbn=978-1-945400-70-4|page=33|language=en}}</ref><ref>{{Cite book|url=https://books.google.com/books?id=TpM8DAAAQBAJ&dq=hanube+and+hanuba&pg=PT34|title=New Folktales of Manipur|last=Oinam|first=James|date=2016-05-26|publisher=Notion Press|isbn=978-1-945400-70-4|page=34|language=en}}</ref>
The old couple did according to how they were advised by the monkeys, peeling off the best tubers of the plants, then boiling them in a pot until softened and after cooling them off, wrapping them in banana leaves and burying them in the soils of the farmlands.<ref>{{Cite book|url=http://archive.org/details/dli.language.1358/page/n52/mode/1up|title=Folktales of Manipur|last1=B. Jayantakumar Sharma|last2=Dr. Chirom Rajketan Singh|date=2014|page=52}}</ref><ref>{{Cite book|url=https://books.google.com/books?id=TpM8DAAAQBAJ&dq=hanube+and+hanuba&pg=PT35|title=New Folktales of Manipur|last=Oinam|first=James|date=2016-05-26|publisher=Notion Press|isbn=978-1-945400-70-4|page=35|language=en}}</ref>
In the dead of the night, the monkeys sneak into the farmlands and secretly relished all the well cooked plants. After their dinner, they (monkeys) planted some inedible giant wild Colocasia plants in places to where the old couple placed the cooked plant tubers. Early in the morning, when the old couple woke up, they were surprised to see the plants getting full grown up just after one day of getting the tubers planted. Unaware of the tricks of the monkeys, the old couple cooked and ate the inedible wild Colocasia plants. As a reaction of the wild plants, they suffered from the unbearable [[tingling]] sensation in their [[throat]]s.<ref>{{Cite book|url=http://archive.org/details/dli.language.1358/page/n53/mode/1up|title=Folktales of Manipur|last1=B. Jayantakumar Sharma|last2=Dr. Chirom Rajketan Singh|date=2014|page=53}}</ref><ref>{{Cite book|url=https://books.google.com/books?id=TpM8DAAAQBAJ&dq=hanube+and+hanuba&pg=PT36|title=New Folktales of Manipur|last=Oinam|first=James|date=2016-05-26|publisher=Notion Press|isbn=978-1-945400-70-4|page=36|language=en}}</ref><ref name="Oinam 37">{{Cite book|url=https://books.google.com/books?id=TpM8DAAAQBAJ&dq=hanube+and+hanuba&pg=PT37|title=New Folktales of Manipur|last=Oinam|first=James|date=2016-05-26|publisher=Notion Press|isbn=978-1-945400-70-4|page=37|language=en}}</ref>

== In art ==
[[File:Colocasia_antiquorumת_Kursi_mosaic.jpg|thumb|Colocasia leaves are shown in the Kursi church mosaics as a platform, such as a plate or bowl, for serving of figs to eat.]]
In the [[Levant]], Colocasia has been in use since the time of the Byzantine Empire. The leaves are shown in mosaics from Palestine as a platform, such as a plate or bowl, for serving of fruit to eat. For example, at the Kursi church mosaic.

==Nutrition==
Taro roots and leaves are rich in [[carbohydrate]]s, [[protein]], and [[dietary mineral]]s.<ref name="researchgate.net">{{Cite journal|date=2015-02-20|title=A critical review of the role of taro ''Colocasia esculenta'' L. (Schott) to food security: A comparative analysis of Kenya and Pacific Island taro germplasm |author=Melese Temesgen |author2=Negussie Retta|journal=Scientia Agriculturae|volume=9|issue=2|doi=10.15192/pscp.sa.2015.9.2.101108|issn=2311-0228|doi-access=free}}</ref> [[Micronutrient]]s include iron, copper, magnesium, potassium, and zinc.<ref name="gupta">{{Cite journal |doi = 10.1111/jfbc.12878|title = Potential of ''Colocasia'' leaves in human nutrition: Review on nutritional and phytochemical properties|journal = Journal of Food Biochemistry|volume = 43|issue = 7|page = e12878|year = 2019|last1 = Gupta|first1 = Kritika|last2 = Kumar|first2 = Ashwani|last3 = Tomer|first3 = Vidisha|last4 = Kumar|first4 = Vikas|last5 = Saini|first5 = Mona|pmid = 31353694| s2cid=150032195 |doi-access = free}}</ref>

==Phytochemicals==
Colocasia leaves contain [[phytochemical]]s, such as [[anthraquinone]]s, [[apigenin]], [[catechin]]s, [[cinnamic acid]] derivatives, [[vitexin]], and [[isovitexin]].<ref name=gupta/>

==Gallery==
<Gallery>

File:Colocasia-Elephant Ear plant 02.jpg|Colocasia, "elephant ear" plant 
File:Colocasia esculenta A.jpg|Colocasia esculenta
File:Colocasia esculenta-IMG 8691.JPG|Colocasia esculenta
File:Colocasia esculenta 1zz.jpg|Colocasia esculenta 
File:Flowers (134).jpg|Colocasia esculenta inflorescence
File:Colocasia esculenta (1125531159).jpg|Colocasia esculenta 
</Gallery>

== See also ==
* [[Cocoyam]]

== References ==
{{Wikispecies|Colocasia (Araceae)|Colocasia}}
{{Reflist}}
{{Notelist}}

{{Taxonbar|from=Q310882}}
{{Authority control}}

[[Category:Araceae genera]]
[[Category:Aroideae]]