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Distribution in Egypt

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Mountainous Southern Sinai.

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Global Distribution

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Canary Islands, Europe, Mediterranean region, southwest Asia, tropical east and south Africa.

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Habitat

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Canal banks, ditches and pools.

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Life Expectancy

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Perennial.

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Comments

provided by eFloras
Cultivated in China. A polymorphic aromatic herb used medicinally.

Mentha asiatica, M. vagans, and the Himalayan M. royleana Bentham all are very closely related to and perhaps doubtfully distinct from M. longifolia. Further work is needed to fully assess their correct status.

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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 17: 237 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
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Description

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Plants rhizomatous, perennial. Stems erect, to 1 m, much branched, whitish, striate, retrorse short tomentose-villous. Leaf blade ovate to oblong-lanceolate, to 6 × 1.5 cm, appressed tomentose-villous, subglabrescent, base rounded to shallow cordate, margin coarsely irregular serrate-dentate, apex acute. Verticillasters in cylindric terminal spikes 3-8 cm, lower ones somewhat lax; floral leaves linear-subulate, mostly shorter than verticillasters. Pedicel to 2 mm. Calyx campanulate, ca. 2 mm, tomentose-villous, obscurely 5-veined; teeth linear-subulate, ca. 1 mm, close together in fruit. Corolla purplish, ca. 4 mm, sparsely puberulent; tube ca. 2 mm, gradually dilated upward; lobes oblong, obtuse; upper lobe oblong-ovate, emarginate. Ovary glabrous. Fl. Jul-Sep.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 17: 237 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
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eFloras.org
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eFloras

Distribution

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Europe, Africa, most of Asia., N. America.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Annotated Checklist of the Flowering Plants of Nepal Vol. 0 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Annotated Checklist of the Flowering Plants of Nepal @ eFloras.org
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K.K. Shrestha, J.R. Press and D.A. Sutton
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Elevation Range

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1600-2700 m
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Annotated Checklist of the Flowering Plants of Nepal Vol. 0 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Annotated Checklist of the Flowering Plants of Nepal @ eFloras.org
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K.K. Shrestha, J.R. Press and D.A. Sutton
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Habitat & Distribution

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Nanjing Shi, Shanghai Shi, and other cities [Russia; SW Asia, Europe]
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 17: 237 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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Synonym

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Mentha spicata Linnaeus var. longifolia Linnaeus, Sp. Pl. 2: 576. 1753; M. sylvestris Linnaeus, 1763.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 17: 237 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
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eFloras.org
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Mentha longifolia

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Mentha longifolia (horse mint;[1] syn. M. spicata var. longifolia L., M. sylvestris L., M. tomentosa D'Urv, M. incana Willd.) is a species in the genus Mentha (mint) native to Europe excluding Britain and Ireland,[2] western and central Asia (east to Nepal and the far west of China), and northern and southern (but not tropical) Africa.[3][4][5] It is a very variable herbaceous perennial plant with a peppermint-scented aroma. Like many mints, it has a creeping rhizome, with erect to creeping stems 40–120 cm tall. The leaves are oblong-elliptical to lanceolate, 5–10 cm long and 1.5–3 cm broad, thinly to densely tomentose, green to greyish-green above and white below. The flowers are 3–5 mm long, lilac, purplish, or white, produced in dense clusters (verticillasters) on tall, branched, tapering spikes; flowering in mid to late summer. It spreads via rhizomes to form clonal colonies.[5][6][7]

Nicholas Culpeper's Complete Herbal (1653) states that "It is good for wind and colic in the stomach...The juice, laid on warm, helps the King's evil or kernels in the throat...The decoction or distilled water helps a stinking breath, proceeding from corruption of the teeth, and snuffed up the nose, purges the head. It helps the scurf or dandruff of the head used with vinegar."[8]

Subspecies

There are seven subspecies:[3][4][7]

  • Mentha longifolia subsp. longifolia, Europe, northwest Africa
  • Mentha longifolia subsp. capensis (Thunb.) Briq., southern Africa
  • Mentha longifolia subsp. grisella (Briq.) Briq., southeastern Europe
  • Mentha longifolia subsp. noeana (Briq.) Briq., Turkey east to Iran
  • Mentha longifolia subsp. polyadena (Briq.) Briq., southern Africa
  • Mentha longifolia subsp. typhoides (Briq.) Harley., northeast Africa, southwest Asia
  • Mentha longifolia subsp. wissii (Launert) Codd., southwestern Africa

It has been widely confused with tomentose variant plants of Mentha spicata; it can be distinguished from these by the hairs being simple unbranched, in contrast to the branched hairs of M. spicata.[6] Like almost all mints, Mentha longifolia can be invasive. Care needs to be taken when planting it in non-controlled areas.

See also

References

  1. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2014-10-23. Retrieved 2014-10-17.
  2. ^ "The IUCN Red List of threatened species: Mentha longifolia (Horse Mint)". International Union for Conservation of Nature and Natural Resources. Retrieved 24 August 2018.
  3. ^ a b Euro+Med Plantbase Project: Mentha longifolia Archived 2012-03-09 at the Wayback Machine
  4. ^ a b African Flowering Plants Database: Mentha longifolia
  5. ^ a b Flora of China: Mentha longifolia
  6. ^ a b Blamey, M. & Grey-Wilson, C. (1989). Flora of Britain and Northern Europe. ISBN 0-340-40170-2
  7. ^ a b Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN 0-333-47494-5.
  8. ^ Grieve, Maud (1971). A Modern Herbal: The Medicinal, Culinary, Cosmetic and Economic Properties, Cultivation and Folk-lore of Herbs, Grasses, Fungi, Shrubs, & Trees with All Their Modern Scientific Uses, Volume 2.
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Mentha longifolia: Brief Summary

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Mentha longifolia (horse mint; syn. M. spicata var. longifolia L., M. sylvestris L., M. tomentosa D'Urv, M. incana Willd.) is a species in the genus Mentha (mint) native to Europe excluding Britain and Ireland, western and central Asia (east to Nepal and the far west of China), and northern and southern (but not tropical) Africa. It is a very variable herbaceous perennial plant with a peppermint-scented aroma. Like many mints, it has a creeping rhizome, with erect to creeping stems 40–120 cm tall. The leaves are oblong-elliptical to lanceolate, 5–10 cm long and 1.5–3 cm broad, thinly to densely tomentose, green to greyish-green above and white below. The flowers are 3–5 mm long, lilac, purplish, or white, produced in dense clusters (verticillasters) on tall, branched, tapering spikes; flowering in mid to late summer. It spreads via rhizomes to form clonal colonies.

Nicholas Culpeper's Complete Herbal (1653) states that "It is good for wind and colic in the stomach...The juice, laid on warm, helps the King's evil or kernels in the throat...The decoction or distilled water helps a stinking breath, proceeding from corruption of the teeth, and snuffed up the nose, purges the head. It helps the scurf or dandruff of the head used with vinegar."

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