|Mentha × piperita (Peppermint)|
Mentha (also known as mint, from Greek μίνθα míntha, Linear B mi-ta) is a genus of plants in the family Lamiaceae (mint family). The exact distinction between species is unclear; it is estimated that 13 to 24 species exist. Hybridization occurs naturally where some species range overlap. Many hybrids and cultivars are known.
The species that makes up the genus Mentha are widely distributed and can be found in many environments. Most grow best in wet environments and moist soils. Mints will grow 10–120 cm tall and can spread over an indeterminate area. Due to their tendency to spread unchecked, some mints are considered invasive.
Mints are aromatic, almost exclusively perennial herbs. They have wide-spreading underground and overground stolons and erect, square, branched stems. The leaves are arranged in opposite pairs, from oblong to lanceolate, often downy, and with a serrated margin. Leaf colors range from dark green and gray-green to purple, blue, and sometimes pale yellow. The flowers are white to purple and produced in false whorls called verticillasters. The corolla is two-lipped with four subequal lobes, the upper lobe usually the largest. The fruit is a nutlet, containing one to four seeds.
Mentha is a member of the tribe Mentheae in the subfamily Nepetoideae. The tribe contains about 65 genera, and relationships within it remain obscure. Authors have disagreed on the circumscription of Mentha. For example, M. cervina has been placed in Pulegium and Preslia, and M. cunninghamii has been placed in Micromeria. In 2004, a molecular phylogenetic study indicated that both M. cervina and M. cunninghamii should be included in Mentha. However, M. cunninghamii was excluded in a 2007 treatment of the genus.
More than 3,000 names have been published in the genus Mentha, at ranks from species to forms, the majority of which are regarded as synonyms or illegitimate 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. Recent sources recognize between 18 and 24 species.
- Mentha alaica Boriss.
- Mentha aquatica L. – water mint, marsh mint
- Mentha arvensis L. – corn mint, wild mint, Japanese peppermint, field mint, banana mint
- Mentha atrolilacina B.J.Conn & D.J.Duval
- Mentha australis R.Br. – Australian mint
- Mentha canadensis L. – Canada mint, American wild mint
- Mentha cervina L. – Hart's pennyroyal
- Mentha cunninghamii (Benth.) Benth.
- Mentha dahurica Fisch. ex Benth. – Dahurian thyme
- Mentha darvasica Boriss.
- Mentha diemenica Spreng. – slender mint
- Mentha gattefossei Maire
- Mentha grandiflora Benth.
- Mentha japonica (Miq.) Makino
- Mentha laxiflora Benth. – forest mint
- Mentha longifolia (L.) L. – horse mint
- Mentha micrantha (Fisch. ex Benth.) Heinr.Braun
- Mentha pamiroalaica Boriss.
- Mentha pulegium L. – pennyroyal
- Mentha requienii Benth. – Corsican mint
- Mentha royleana Wall. ex Benth.
- Mentha satureioides R.Br. – native pennyroyal
- Mentha spicata L. – spearmint, garden mint (a cultivar of spearmint)
- Mentha suaveolens Ehrh. – apple mint, pineapple mint (a variegated cultivar of apple mint)
The mint genus has a large grouping of recognized hybrids. Those accepted by Plants of the World Online are listed below. Parent species are taken from Tucker & Naczi (2007). Synonyms, along with cultivars and varieties where available, are included within the specific nothospecies.
- Mentha × carinthiaca Host (M. arvensis × M. suaveolens)
- Mentha × dalmatica Tausch (M. arvensis × M. longifolia)
- Mentha × dumetorum Schult. (M. aquatica × M. longifolia)
- Mentha × gayeri Trautm.
- Mentha × gentilis L. (syn. Mentha × gracilis; M. arvensis × M. spicata) – ginger mint, Scotch spearmint
- Mentha × kuemmerlei Trautm.
- Mentha × locyana Borbás
- Mentha × piperita L. (M. aquatica × M. spicata) – peppermint, chocolate mint
- Mentha × pyramidalis Ten.
- Mentha × rotundifolia (L.) Huds. (M. longifolia × M. suaveolens) – false apple mint
- Mentha × suavis Guss. (syn. Mentha × maximilianea; M. aquatica × M. suaveolens)
- Mentha × verticillata L. (M. aquatica × M. arvensis)
- Mentha × villosa Huds. (M. spicata × M. suaveolens, also called M. nemorosa) – large apple mint, foxtail mint, hairy mint, woolly mint, Cuban mint, mojito mint, and yerba buena in Cuba
- Mentha × villosa-nervata Opiz (M. longifolia × M. spicata) – sharp-toothed mint
- Mentha × wirtgeniana F.W.Schultz (syn. Mentha × smithiana; M. aquatica × M. arvensis × M. spicata) – red raripila mint
All mints thrive near pools of water, lakes, rivers, and cool moist spots in partial shade. In general, mints tolerate a wide range of conditions, and can also be grown in full sun. Mint grows all year round.
They are fast-growing, extending their reach along surfaces through a network of runners. 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 more invasive than 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.
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 — 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 are peppermint (Mentha × piperita), native spearmint (Mentha spicata), Scotch spearmint (Mentha x gracilis), and cornmint (Mentha arvensis); also (more recently) apple mint (Mentha suaveolens).
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.
This section may lack focus or may be about more than one topic. In particular, it treats the genus Mentha ("mint") as if it were a single kind of plant, whereas many of the uses apply only to one species or cultivated variety of the genus.July 2019)(
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. In Middle Eastern cuisine, mint is used in lamb dishes, while in British cuisine and American cuisine, mint sauce and mint jelly are used, respectively.
Mint is a necessary ingredient in Touareg tea, a popular tea in northern African and Arab countries. Tea in Arab countries is popularly drunk this way. Alcoholic drinks sometimes feature mint for flavor or garnish, such as the mint julep and the mojito. Crème de menthe is a mint-flavored liqueur used in drinks such as the grasshopper.
Mint essential oil and menthol are extensively used as flavorings in breath fresheners, drinks, antiseptic mouth rinses, toothpaste, chewing gum, desserts, and candies, such as mint (candy) and mint chocolate. The substances that give the mints their characteristic aromas and flavors are menthol (the main aroma of peppermint and Japanese peppermint) and pulegone (in pennyroyal and Corsican mint). The compound primarily responsible for the aroma and flavor of spearmint is L-carvone.
Traditional medicine and cosmetics
Mint was originally used as a medicinal herb to treat stomach ache and chest pains. There are several uses in traditional medicine and preliminary research for possible use in treating irritable bowel syndrome.
Menthol from mint essential oil (40–90%) is an ingredient of many cosmetics and some perfumes. Menthol and mint essential oil are also used in aromatherapy which may have clinical use to alleviate post-surgery nausea.
Although it is used in many consumer products, mint may cause allergic reactions in some people, inducing symptoms such as abdominal cramps, diarrhea, headaches, heartburn, tingling or numbing around the mouth, anaphylaxis or contact dermatitis.
Room scent and aromatherapy
Known in Greek mythology as the herb of hospitality, one of mint's first known uses in Europe was as a room deodorizer. 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.
Etymology of "mint"
Mint descends from the Latin word mentha, which is rooted in the Greek word minthe, personified in Greek mythology as Minthe, a nymph who was transformed into a mint plant, and reflex of a proto-Indo-European root whence also Sanskrit -mantha, mathana (premna serratifolia).
Mint leaves, without a qualifier like 'peppermint' or 'apple mint', generally refers to spearmint leaves.
In Spain and Central and South America, mint is known as menta. In Lusophone countries, especially in Portugal, mint species are popularly known as hortelã. In many Indo-Aryan languages, it is called pudīna, (Sindhi: ڦُودنو), Hindi: पुदीना , (Bengali: পুদিনা).
In common usage, other plants with fragrant leaves may be called "mint", although they are not in the mint family.
- Vietnamese mint, commonly used in Southeast Asian cuisine is Persicaria odorata in the family Polygonaceae, collectively known as smartweeds or pinkweeds.
- Mexican mint marigold is Tagetes lucida in the sunflower family (Asteraceae).
†Mentha pliocenica fossil seeds have been excavated in Pliocene deposits of Dvorets on the right bank of the Dnieper river between the cities of Rechitsa and Loyew, in south-eastern Belarus. The fossil seeds are similar to the seeds of Mentha aquatica and Mentha arvensis.
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|Wikisource has the text of the 1911 Encyclopædia Britannica article Mint (plant).|