Mentha,also known asmint(fromGreekμίνθαmíntha,[2]Linear Bmi-ta[3]), is agenusofflowering plantsin thefamilyLamiaceae(mint family).[4]It is estimated that 13 to 24speciesexist, but the exact distinction between species is unclear.[5][1]Hybridizationoccursnaturallywhere somespecies' rangesoverlap. Manyhybridsandcultivarsare known.

Mentha
Inflorescence of Mentha spicata
Mentha x piperita
Mentha spicata(Spearmint)
Mentha × piperita(Peppermint)
Scientific classificationEdit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Subfamily: Nepetoideae
Tribe: Mentheae
Genus: Mentha
L.
Type species
Mentha spicata
Synonyms[1]

The genus has asubcosmopolitandistribution across Europe, Africa – (Southern Africa), Asia, Australia – Oceania, North America and South America.[6][7] Its species can be found in many environments, but most grow best in wet environments and moist soils.

Description

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Flowering verticillasters of a spearmint.

Mints are aromatic, almost exclusivelyperennialherbs.They have wide-spreading underground and overgroundstolons[8]and erect, square,[9]branched stems. Mints will grow 10–120 cm (4–48 inches) tall and can spread over an indeterminate area. Due to their tendency to spread unchecked, some mints are consideredinvasive.[10]

Theleavesare arranged inoppositepairs, fromoblongto lanceolate, often downy, and with aserratedmargin. Leaf colors range from dark green and gray-green to purple, blue, and sometimes pale yellow.[6]

Theflowersare produced in long bracts from leaf axils.[11]They are white to purple and produced in false whorls called verticillasters. The corolla is two-lipped with foursubequallobes, the upper lobe usually the largest. Thefruitis a nutlet, containing one to fourseeds.

Taxonomy

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Menthais a member of thetribeMentheae in thesubfamilyNepetoideae.The tribe contains about 65 genera, and relationships within it remain obscure.[4]Authors have disagreed on thecircumscriptionofMentha.For example,M. cervinahas been placed inPulegiumandPreslia,andM. cunninghamiihas been placed inMicromeria.[12]In 2004, amolecular phylogeneticstudy indicated that bothM. cervinaandM. cunninghamiishould be included inMentha.[5]However,M. cunninghamiiwas excluded in a 2007 treatment of the genus.[12]

More than 3,000 names have been published in the genusMentha,at ranks from species to forms, the majority of which are regarded assynonymsorillegitimate names.The taxonomy of the genus is made difficult because many species hybridize readily, or are themselves derived from possibly ancient hybridization events. Seeds from hybrids give rise to variable offspring, which may spread through vegetative propagation. The variability has led to what has been described as "paroxysms of species and subspecific taxa"; for example, one taxonomist published 434 new mint taxa for central Europe alone between 1911 and 1916.[12]Recent sources recognize between 18[12]and 24[1]species.[13]

Species

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As of December 2020,Plants of the World Onlinerecognized the following species:[1]

Other species

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There are a number of plants that have mint in the common English name but which do not belong to the genusMentha:[14][15][16]

Hybrids

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TheMentha×piperitahybrid known as "chocolate mint"

The mint genus has a large grouping of recognized hybrids. Those accepted by Plants of the World Online are listed below.[1]Parent species are taken from Tucker & Naczi (2007).[12]Synonyms, along with cultivars and varieties where available, are included within the specific nothospecies.

Common names and cultivars

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There are hundreds of common English names for species and cultivars ofMentha.These include:

  • Apple mint -Mentha suaveolensandMentha × rotundifolia
  • Banana mint -Mentha arvensis'Banana'
  • Bowles mint -Mentha villosaandMentha × villosa'Alopecuroides'
  • Canada mint -Mentha canadensis
  • Chocolate mint -Mentha × piperita'Chocolate'
  • Corsican mint -Mentha requienii
  • Cuba mint -Mentha × villosa
  • Curly mint -Mentha spicata'Curly'
  • Eau de Cologne mint -Mentha × piperita'Citrata'
  • Field mint -Mentha arvensis
  • Flea mint -Mentha requienii
  • Ginger mint -Mentha × gracilis
  • Gray mint -Mentha longifolia
  • Green mint -Mentha spicata
  • Grey mint -Mentha longifolia
  • Japanese peppermint -Mentha arvensisvar.piperascens
  • Japanese mint or Japanese medicine mint -Mentha spicata'Abura'
  • Kiwi mint -Mentha cunninghamii
  • Lemon mint -Mentha × piperitavar.citrataandMentha × gentilis
  • Marsh mint -Mentha aquatica
  • Meadow mint -Mentha × gracilisandMentha arvensis
  • Mojito mint -Mentha spicata'Mojito'
  • Moroccan mint -Mentha spicata var. crispa'Moroccan' and mints collected in Morocco
  • Pennyroyal -Mentha pulegium
  • Peppermint -Mentha × piperitaand sometimesMentha requienii
  • Pineapple mint -Mentha suaveolens'Variegata' andMentha suaveolens'Pineapple'
  • Polemint -Mentha pulegium
  • Red raripila mint -Mentha × wirtgeniana
  • Round leaf mint -Mentha suaveolens
  • Spearmint -Mentha spicata
  • Strawberry mint -Mentha × piperita'Strawberry'
  • Swiss mint -Mentha × piperita'Swiss'
  • Tall mint -Mentha × wirtgeniana
  • Tea mint -Mentha × verticillata
  • Toothmint -Mentha × smithiana
  • Water mint -Mentha aquatica
  • Woolly mint -Mentha × rotundifolia

Cultivation

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Mentha x gracilisandM. rotundifolia:The steel ring is to control the spread of the plant.

All mints thrive near pools of water, lakes, rivers, and cool moist spots in partial shade.[25]In general, mints tolerate a wide range of conditions, and can also be grown in full sun. Mint grows all year round.[26]

They are fast-growing, extending their reach along surfaces through a network ofrunners.Due to their speedy growth, one plant of each desired mint, along with a little care, will provide more than enough mint for home use. Some mint species are moreinvasivethan others. Even with the less invasive mints, care should be taken when mixing any mint with any other plants, lest the mint take over. To control mints in an open environment, they should be planted in deep, bottomless containers sunk in the ground, or planted above ground in tubs and barrels.[25]

Some mints can be propagated by seed, but growth from seed can be an unreliable method for raising mint for two reasons: mint seeds are highly variable — one might not end up with what one supposed was planted[25]— and some mint varieties are sterile. It is more effective to take and plant cuttings from the runners of healthy mints.

The most common and popular mints for commercial cultivation arepeppermint(Mentha × piperita),native spearmint(Mentha spicata),Scotch spearmint(Mentha x gracilis), andcornmint(Mentha arvensis);[27]also (more recently)apple mint(Mentha suaveolens).

Mints are supposed to make goodcompanion plants,repelling insect pests and attracting beneficial ones. They are susceptible towhiteflyandaphids.

Harvesting of mint leaves can be done at any time. Fresh leaves should be used immediately or stored up to a few days in plastic bags in a refrigerator. Optionally, leaves can be frozen in ice cube trays. Dried mint leaves should be stored in an airtight container placed in a cool, dark, dry area.[28]

Uses

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Culinary

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A jar of mint jelly, a traditional condiment served with lamb dishes
Limonana(mint lemonade) served inDamascus,Syria

The leaf, fresh or dried, is the culinary source of mint. Fresh mint is usually preferred over dried mint when storage of the mint is not a problem. The leaves have a warm, fresh, aromatic, sweet flavor with a cool aftertaste, and are used in teas, beverages, jellies, syrups, candies, and ice creams. InMiddle Eastern cuisine,mint is used inlambdishes, while inBritish cuisineandAmerican cuisine,mint sauceand mint jelly are used, respectively. Mint (pudina) is a staple inIndian cuisine,used for flavouring curries and other dishes.

Mint is a necessary ingredient inTouareg tea,a popular tea in northern African and Arab countries. Alcoholic drinks sometimes feature mint for flavor or garnish, such as themint julepand themojito.Crème de mentheis a mint-flavoredliqueurused in drinks such as thegrasshopper.

Mintessential oilandmentholare extensively used as flavorings in breath fresheners, drinks,antiseptic mouth rinses,toothpaste,chewing gum,desserts,andcandies,such asmint (candy)andmint chocolate.The substances that give the mints their characteristic aromas and flavors are menthol (the main aroma of peppermint and Japanese peppermint) andpulegone(in pennyroyal and Corsican mint). The compound primarily responsible for the aroma and flavor of spearmint isL-carvone.

Mints are used as food plants by the larvae of someLepidopteraspecies, includingbuff erminemoths. It is also eaten by beetles such asChrysolina coerulans(blue mint beetle)[29][30]andMint leaf beetle.[31]

Traditional medicine and cosmetics

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Theancient Greeksrubbed mint on their arms, believing it would make them stronger.[32]Mint was originally used as a medicinal herb to treatstomach acheandchest pains.[33]There are several uses intraditional medicine[34]and preliminary research for possible use of peppermint in treatingirritable bowel syndrome.[33]

Menthol from mint essential oil (40–90%) is an ingredient of manycosmeticsand someperfumes.Menthol and mint essential oil are also used inaromatherapywhich may have clinical use to alleviate post-surgerynausea.[33][35]

Allergic reaction

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Although it is used in manyconsumer products,mint may causeallergic reactionsin some people, inducing symptoms such asabdominal cramps,diarrhea,headaches,heartburn,tingling or numbing around the mouth,anaphylaxis,orcontact dermatitis.[33][36]

Insecticides

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Mint oil is also used as anenvironmentally friendlyinsecticidefor its ability to kill some common pests such as wasps, hornets, ants, and cockroaches.[37]

Room scent and aromatherapy

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Known in Greek mythology as the herb of hospitality,[38]one of mint's first known uses in Europe was as a room deodorizer.[39]The herb was strewn across floors to cover the smell of the hard-packed soil. Stepping on the mint helped to spread its scent through the room. Today, it is more commonly used for aromatherapy through the use of essential oils.

Diseases

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Etymology of "mint"

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An example of mint leaves

The word "mint" descends from theLatinwordmenthaormenta,[40]which is rooted in theGreekwordsμίνθαmintha,μίνθηminthēorμίντηmintēmeaning "spearmint".[2]The plant was personified inGreek mythologyasMinthe,a nymph who was beloved byHadesand was transformed into a mint plant by eitherPersephoneorDemeter.This, in turn, ultimately derived from aproto-Indo-Europeanroot that is also the origin of theSanskrit-mantha, mathana(premna serratifolia).

References to "mint leaves", without a qualifier like "peppermint" or "apple mint", generally refer to spearmint leaves.

InSpainandCentralandSouth America,mint is known asmenta.InLusophonecountries, especially inPortugal,mint species are popularly known ashortelã.In manyIndo-Aryan languages,it is calledpudīna:Hindi:पुदीना,Sindhi:ڦُودنو,Bengali:পুদিনাborrowed fromPersianپودنهpudnaorپونهpunameaning "pennyroyal".[41]

The taxonomic family Lamiaceae is known as the mint family. It includes many other aromatic herbs, including most of the more common cooking herbs, such asbasil,rosemary,sage,oregano,andcatnip.

As an English colloquial term, any small mint-flavoredconfectioneryitem can be called a mint.[42]

In common usage, other plants with fragrant leaves may be called "mint", although they are not in the mint family:

Fossil record

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Mentha pliocenicafossilseeds have been excavated inPliocenedeposits of Dvorets on the right bank of theDnieper riverbetween the cities ofRechitsaandLoyew,in south-easternBelarus.The fossil seeds are similar to the seeds ofMentha aquaticaandMentha arvensis.[43]

References

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  2. ^abμίνθα.Liddell, Henry George;Scott, Robert;A Greek–English Lexiconat thePerseus Project
  3. ^PalaeolexiconArchived2011-02-03 at theWayback Machine,Word study tool of ancient languages
  4. ^abHarley, Raymond M.; Atkins, Sandy; Budantsev, Andrey L.; Cantino, Philip D.; Conn, Barry J.; Grayer, Renée J.; Harley, Madeline M.; de Kok, Rogier P.J.; Krestovskaja, Tatyana V. (2004). "Labiatae". In Kubitzki, Klaus; Kadereit, Joachim W. (eds.).The Families and Genera of Vascular Plants.Vol. VII. Berlin; Heidelberg, Germany: Springer-Verlag. pp. 167–275.ISBN978-3-540-40593-1.
  5. ^abBunsawat, Jiranan; Elliott, Natalina E.; Hertweck, Kate L.; Sproles, Elizabeth; Alice, Lawrence A. (2004). "Phylogenetics ofMentha(Lamiaceae): Evidence from Chloroplast DNA Sequences ".Systematic Botany.29(4): 959–964.doi:10.1600/0363644042450973.JSTOR25064024.S2CID86816849.
  6. ^abBrickell, Christopher;Zuk, Judith D.(1997).The American Horticultural Society: A-Z Encyclopedia of Garden Plants.New York, NY: DK Publishing. p. 668.ISBN978-0-7894-1943-9.
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