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''Mentha arvensis'', the corn mint, field mint, or wild mint, is a species of
flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...
in the
mint Mint or The Mint may refer to: Plants * Lamiaceae, the mint family ** ''Mentha'', the genus of plants commonly known as "mint" Coins and collectibles * Mint (facility), a facility for manufacturing coins * Mint condition, a state of like-new ...
family
Lamiaceae The Lamiaceae ( ) or Labiatae are a family (biology), family of flowering plants commonly known as the mint, deadnettle, or sage family. Many of the plants are aromatic in all parts and include widely used culinary herbs like basil (herb), ba ...
. It has a circumboreal distribution, being native to the
temperate In geography, the temperate climates of Earth occur in the middle latitudes (approximately 23.5° to 66.5° N/S of the Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ran ...
regions of
Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
and western and central
Asia Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
, east to the
Himalaya The Himalayas, or Himalaya ( ), is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has some of the Earth's highest peaks, including the highest, Mount Everest. More than 100 pea ...
and eastern
Siberia Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states ...
, and
North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...
. '' Mentha canadensis'', the related species, is also included in ''Mentha arvensis'' by some authors as two varieties, ''M. arvensis'' var. ''glabrata'' Fernald (North American plants such as American Wild Mint) and ''M. arvensis'' var. ''piperascens'' Malinv. ex L. H. Bailey (eastern Asian plants such as Japanese mint). It grows in moist places, especially along streams.


Description

Wild mint is a
herbaceous Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of ...
perennial plant In horticulture, the term perennial (''wikt:per-#Prefix, per-'' + ''wikt:-ennial#Suffix, -ennial'', "through the year") is used to differentiate a plant from shorter-lived annual plant, annuals and biennial plant, biennials. It has thus been d ...
generally growing to and rarely up to tall. It has a creeping rootstock from which grow erect or semi-sprawling squarish stems. The
leaves A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, ...
are in opposite pairs, simple, long and broad, hairy, and with a coarsely serrated margin. The
flower Flowers, also known as blooms and blossoms, are the reproductive structures of flowering plants ( angiosperms). Typically, they are structured in four circular levels, called whorls, around the end of a stalk. These whorls include: calyx, m ...
s are pale purple (occasionally white or pink), in whorls on the stem at the bases of the leaves. Each flower is long and has a five-lobed hairy calyx, a four-lobed corolla with the uppermost lobe larger than the others and four stamens. The fruit is a two-chambered carpel..


Subspecies

Subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
include: *''Mentha arvensis'' subsp. ''arvensis''. *''Mentha arvensis'' subsp. ''agrestis'' ( Sole) Briq. *''Mentha arvensis'' subsp. ''austriaca'' (Jacq.) Briq. *''Mentha arvensis'' subsp. ''lapponica'' (Wahlenb.) Neuman *''Mentha arvensis'' subsp. ''palustris'' (Moench) Neumann *''Mentha arvensis'' var. ''piperascenes'' Malinv. ex L. H. Bailey – Japanese/Chinese/Korean mint *''Mentha arvensis'' subsp. ''parietariifolia'' (Becker) Briq. *''Mentha arvensis'' subsp. ''haplocalyx'' (Linnaeus, e.g. var. sachalinensis) The related species ''Mentha canadensis'' is also included in ''M. arvensis'' by some authors as two varieties, ''M. arvensis'' var. ''glabrata'' Fernald (in reference to North American plants) and ''M. arvensis'' var. ''piperascens'' Malinv. ex L. H. Bailey (in reference to eastern Asian plants).


Uses

The leaves have been made into tea to treat colds or aid digestion. They can also be eaten raw. Chemical substances that can be extracted from wild mint include
menthol Menthol is an organic compound, specifically a Monoterpene, monoterpenoid, that occurs naturally in the oils of several plants in the Mentha, mint family, such as Mentha arvensis, corn mint and peppermint. It is a white or clear waxy crystallin ...
,
menthone Menthone is a chemical compound of the monoterpene class of naturally occurring organic compounds found in a number of essential oils, one that presents with minty flavor. It is a specific pair of stereoisomers of the four possible such isomers ...
, isomenthone,
neomenthol Menthol is an organic compound, specifically a Monoterpene, monoterpenoid, that occurs naturally in the oils of several plants in the Mentha, mint family, such as Mentha arvensis, corn mint and peppermint. It is a white or clear waxy crystallin ...
,
limonene Limonene () is a colorless liquid aliphatic hydrocarbon classified as a cyclic monoterpene, and is the major component in the essential oil of citrus fruit peels. The (+)-isomer, occurring more commonly in nature as the fragrance of oranges, ...
,
methyl acetate Methyl acetate, also known as MeOAc, acetic acid methyl ester or methyl ethanoate, is a carboxylate ester with the formula CH3COOCH3. It is a flammable liquid with a characteristically pleasant smell reminiscent of some glues and nail polish remo ...
, piperitone,
beta-caryophyllene Caryophyllene (), more formally (−)-β-caryophyllene (BCP), is a natural bicyclic sesquiterpene that occurs widely in nature. Caryophyllene is notable for having a cyclobutane ring, as well as a ''trans''-double bond in a 9-membered ring, both ...
, alpha-pinene, beta-pinene,
tannin Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and Precipitation (chemistry), precipitate proteins and various other organic compounds including amino acids and alkaloids. The term ''tannin'' is widel ...
s and
flavonoid Flavonoids (or bioflavonoids; from the Latin word ''flavus'', meaning yellow, their color in nature) are a class of polyphenolic secondary metabolites found in plants, and thus commonly consumed in the diets of humans. Chemically, flavonoids ...
s. Mint extracts and menthol-related chemicals are used in food, drinks, cough medicines, creams and cigarettes. Menthol is widely used in dental care, as a
mouthwash Mouthwash, mouth rinse, oral rinse, or mouth bath is a liquid which is held in the mouth passively or swirled around the mouth by contraction of the perioral muscles and/or movement of the head, and may be gargled, where the head is tilted back ...
potentially inhibiting
streptococci ''Streptococcus'' is a genus of gram-positive spherical bacteria that belongs to the family Streptococcaceae, within the order Lactobacillales (lactic acid bacteria), in the phylum Bacillota. Cell division in streptococci occurs along a sing ...
and lactobacilli
bacteria Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micr ...
.


Diseases

Two main diseases that can significantly damage Japanese mint (''M. arvensis'' var. ''piperascens)'' and its yield are the rust fungus and the mildew attacks.Sievers, A. F., & Lowman, M. S. (1933). ''Commercial possibilities of Japanese mint in the United States as a source of natural menthol'' (No. 378). US Dept. of Agriculture. Mildew attacks usually only occur on the west coast of United States where the weather can be foggy and humid, a condition that attracts mildew. Rust fungus is a disease that is common for most of the Mentha plants such as peppermint and spearmint. These diseases are flagged due to the improbability of controlling once it starts in a mint farm. They are typically cut immediately when discovered to help reduce the probability of contaminating the rest of the plant leaves.


References


External links


Jepson Manual Treatment

Photo gallery
{{Mint arvensis Flora of Asia Flora of Europe Flora of Northern America Leaf vegetables Plants described in 1753 Taxa named by Carl Linnaeus