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Mentha canadensis

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Mentha canadensis (syn. M. arvensis var. canadensis) is a species of mint commonly known as American wild mint, native to North America (from Northwest Territories to central Mexico), or known as bakha,<ref name="KNA">Template:Cite book</ref> East Asian wild mint,<ref name="KNA" /> or Japanese Mint (M. arvensis var. piperascens)<ref name=grin1/> in eastern Asia (Siberia to Java) and the Northern Territory of Australia.<ref>Kew World Checklist of Selected Plant Families</ref> The flowers are bluish or a slight violet tint. The plant is upright about Template:Convert to Template:Convert tall. Leaves grow opposite from each other, and flower bunches appear at the upper leaf axil. The mint grows in wet areas but not directly in water, so it will be found near sloughs, lake and river edges. Flowers bloom from July to August.<ref>Template:Citation</ref>

wild mint in Saskatchewan

The related species Mentha canadensis is also included in Mentha 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).<ref name=grin1>Template:GRIN</ref><ref name=CRCNames>Template:Citation</ref>

Description

American wild mint is a perennial plant with an underground creeping rhizome and upright shoots. It can grow to a height of about Template:Convert. It has hairy stems bearing opposite pairs of leaves. Each leaf is borne on a short stalk and has a wedge-shaped base and is lanceolate or ovate, with a toothed margin and a hairy surface. The flowers are borne in spikes at the tips of the shoots. The flowers may be bluish, pink or white. They are arranged in a spiral around the inflorescence. Each flower has five sepals, four petals, four stamens and a superior ovary. The fruits are dry and split open when ripe releasing the two seeds.<ref>Template:Cite web</ref>

Native distribution

Mentha canadensis has been found as a native species of mint around the world. Below is a detailed list of countries and states that found Mentha canadensis to be native to the region.<ref name=grin1/>

Asia-Temperate

  • China
  • Eastern Asia: Japan - Hokkaido, - Honshu, - Kyushu, - Shikoku; Korea
  • Russian Far East: Russian Federation - Kurile Islands, - Khabarovsk, - Primorye, - Amur, - Sakhalin
  • Siberia: Russian Federation - Buryatia, - Tuva, - Yakutia-Sakha, - Krasnoyarsk, - Chita, - Irkutsk
  • Indian Subcontinent: Sri Lanka
  • Indo-China: Cambodia; Laos; Myanmar; Thailand; Vietnam
  • Malesia: Indonesia; Malaysia; Philippines

Northern America

  • Eastern Canada: Canada - Quebec, - Nova Scotia, - Ontario, - Prince Edward Island, - New Brunswick, - Newfoundland
  • North-Central U.S.A.: United States - Illinois, - Iowa, - Kansas, - Minnesota, - Missouri, - Nebraska, - North Dakota, - Oklahoma, - South Dakota, - Wisconsin
  • Northeastern U.S.A.: United States - Connecticut, - Indiana, - Maine, - Massachusetts, - Michigan, - New Hampshire, - New Jersey, - New York, - Ohio, - Pennsylvania, - Rhode Island, - Vermont, - West Virginia
  • Northwestern U.S.A.: United States - Colorado, - Idaho, - Montana, - Oregon, - Washington, - Wyoming
  • South-Central U.S.A.: United States - New Mexico, - Texas
  • Southeastern U.S.A.: United States - Kentucky, - Maryland, - North Carolina, - Tennessee, - Virginia
  • Southwestern U.S.A.: United States - Arizona, - California, - Nevada, - Utah
  • Subarctic America: Canada - Northwest Territory, - Yukon Territory; United States - Alaska
  • Western Canada: Canada - Saskatchewan, - Alberta, - Manitoba, - British Columbia

Cultivation

Mentha canadensis are cultivated throughout the world:

  • Africa
    • Angola, South Africa, Seychelles
  • Asia
    • China, Japan, Korea,Taiwan, India, Thailand, New Zealand
  • Northern America
    • Mexico, United States
  • Southern America
    • Brazil, Cuba, Argentina

Uses

The leaves have a distinct peppermint smell when pinched or crushed as the plant contains aromatic oils. Pick leaves at any time during plant growth, and they may be dried. Mint jelly is a popular preparation. To make mint tea, pour boiling water over a scant teaspoon full of dried leaves, or over 1/3 cup fresh leaves. Iced tea is also a treat. Mint leaf candy can also be made.<ref>Template:Citation</ref> First nations people use mint tea to remedy bad breath or toothache, or to cure hiccups. The mint can also be used for fox or lynx bait.<ref name=":1">Template:Citation</ref>

Mint essential is known to be effective as insect repellent for insects such as Drosophila melanogaster.<ref name=":1" />

Medicinal uses

One of the most important essential oils used in medicine is Japanese mint oil. Since Japanese mint is rich in natural menthol compared to the other mints species, menthol is a chemical that is used extensively in a number of pharmaceutical preparations. Approximately 4000 tons of Japanese mint oil and 2000 tons of menthol are produced in the world today (1998). The major producing countries are Brazil, Paraguay, Taiwan, Japan, China, India, and Thailand.<ref>Schultes, R. E. (1993). Conservation of Medicinal Plants, Edited by Olayiwola Akerele, Vernon Heywood & Hugh Synge. Cambridge University Press, Cambridge, England, UK: xiii+ 362 pp., 20× 15× 3 cm, no price indicated, 1991. Environmental Conservation, 20(01), 93-93.</ref>

References

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