Biology:Trifolium pratense

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Short description: Species of flowering plant in the bean family

Trifolium pratense
Trifolium pratense - Keila2.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Trifolium
Species:
T. pratense
Binomial name
Trifolium pratense
Synonyms
  • (L.) Bernh.
  • Opperman Trifolium pratense f. pratense
  • Lagopus pratensis
  • Trifolium pratense var. pratense Trifolium ukrainicum

Trifolium pratense (from Latin prātum, meaning meadow), red clover,[2][3] is a herbaceous species of flowering plant in the bean family Fabaceae, native to Europe, Western Asia, and northwest Africa, but planted and naturalized in many other regions.

Taxonomy

Trifolium pratense was initially published by Carl Linnaeus in his book Species Plantarum on page 768 in 1753.

The genus has 3 known subspecies:[4]

  • Trifolium pratense subsp. baeticum (Boiss.) Vicioso
  • Trifolium pratense subsp. kotulae (Pawl.) Soják
  • Trifolium pratense subsp. pratense

Description

Trifolium pratense - Keila.jpg
White-flowered form
Red clover is a good pollen and nectar source for bumblebees

Red clover is a herbaceous, short-lived perennial plant, which is generally variable in size, growing to 20–80 cm (8–31 in) tall. It has a deep taproot which makes it tolerant to drought and gives it a good soil structuring effect.[5] The leaves are alternate, trifoliate (with three leaflets), each leaflet 15–30 mm (0.6–1.2 in) long and 8–15 mm (0.3–0.6 in) broad, green with a characteristic pale crescent in the outer half of the leaf; the petiole is 1–4 cm (0.4–1.6 in) long, with two basal stipules that are abruptly narrowed to a bristle-like point. The flowers are dark pink with a paler base, 12–15 mm (0.5–0.6 in) long, produced in a dense inflorescence, and are mostly visited by bumblebees.[6]

Distribution

The red clover is native to Europe, Western Asia, and northwest Africa, but it has been naturalized in other continents, like North and South America. Specifically, the red clover was brought to Argentina and Chile over 100 years ago, although it is not clear how exactly it was introduced.[7] The red clover has become increasingly important as a source of economic stability in Chile, which has made the need for pollinators even more important.[8] One important pollinator, which was also brought from Europe, is Bombus ruderatus, or the large garden bumblebee. This bumblebee has been one of the important pollinators of red clover in South America and other countries such as New Zealand.[9] In India the highest producer of Red Clover seed is the Agriculture Department of Kashmir's Fodder Seed Production Station Aru, in south Kashmir's Anantnag district of Jammu & Kashmir.[10] Two red clover accessions were deposited in National Gene Bank of India from Fodder Seed Production Station Aru in 2019 vide IC-635999 and IC-636000 by ICAR.[11]

Uses

Trifolium pratense, general aspect

It is widely grown as a fodder crop, valued for its nitrogen fixation, which increases soil fertility. For these reasons, it is used as a green manure crop. Several cultivar groups have been selected for agricultural use, mostly derived from T. pratense var. sativum. It has become naturalised in many temperate areas, including the Americas and Australasia as an escape from cultivation.

Due to its beauty, it is used as an ornamental plant. Red clover's flowers and leaves are edible, and can be added as garnishes to any dish.[12] They can be ground into a flour.

The flowers often are used to make jelly and tisanes, and are used in essiac recipes. Their essential oil may be extracted and its unique scent used in aromatherapy.

Trifolium pratense's perennial nature affords sustained, reliable growth. Furthermore, the species' ability to fix nitrogen promotes protein rich growth, enables it to support a wide range of wildlife including deer, turkeys, and rabbits. These characteristics make Trifolium pratense useful for hunters interested in attracting game.[citation needed] The pink flowers afford high visibility levels and facilitate such attraction and may be used by wildlife remediation teams and conservationists seeking to build wildlife bridges to connect fragmented habitats.[13]

Alternative and traditional medicine

In the traditional medicine of India, Trifolium pratense is believed to be a deobstruent, antispasmodic, expectorant, sedative, anti-inflammatory and antidermatosis agent.[14]

In alternative medicine, red clover is promoted as a treatment for a variety of human maladies, including symptoms of menopause, coughs, disorders of the lymphatic system and a variety of cancers. There is some evidence it may reduce the frequency of hot flushes in menopausal women.[15] There is no good evidence it is of any benefit in preventing or treating cancer or any other diseases.[16]

Due to its coumarin derivatives, T. pratense should be used with caution in individuals with coagulation disorders or currently undergoing anticoagulation therapy.[17] It is metabolised by CYP3A4 and therefore caution should be used when taking it with other drugs using this metabolic pathway.[18]

Diseases

Main page: Biology:List of red clover diseases

Red clover is subject to bacterial as well as fungal diseases, including clover rot,[19] and red clover rust, Uromyces trifolii-repentis var. fallens. Other problems include parasitic nematodes (roundworms) and viruses.[citation needed]

Symbolism

Trifolium pratense is the national flower of Denmark [20] and the state flower of Vermont.[21]

See also

References

  1. Lopez Poveda, L. (2012). "Trifolium pratense". IUCN Red List of Threatened Species 2012: e.T174713A20156449. doi:10.2305/IUCN.UK.2012.RLTS.T174713A20156449.en. https://www.iucnredlist.org/species/174713/20156449. Retrieved 25 January 2024. 
  2. (xls) BSBI List 2007, Botanical Society of Britain and Ireland, https://bsbi.org/download/3542/, retrieved 2014-10-17 
  3. "Trifolium pratense". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=TRPR2. 
  4. "Trifolium pratense L.". https://www.worldfloraonline.org/taxon/wfo-0000213053. 
  5. "Red Clover" (in en). https://extension.psu.edu/red-clover. 
  6. Van Der Kooi, C. J.; Pen, I.; Staal, M.; Stavenga, D. G.; Elzenga, J. T. M. (2015). "Competition for pollinators and intra-communal spectral dissimilarity of flowers". Plant Biology 18 (1): 56–62. doi:10.1111/plb.12328. PMID 25754608. https://www.researchgate.net/publication/273158762. 
  7. Rosso, B. S.; Pagano, E. M. (2005-08-01). "Evaluation of Introduced and Naturalised Populations of Red Clover(Trifolium pratense L.) at Pergamino EEA-INTA, Argentina". Genetic Resources and Crop Evolution 52 (5): 507–511. doi:10.1007/s10722-005-0777-z. ISSN 0925-9864. 
  8. Arretz, P. V.; Macfarlane, R. P. (1986-01-01). "The Introduction of Bombus Ruderatus to Chile for Red Clover Pollination". Bee World 67 (1): 15–22. doi:10.1080/0005772X.1986.11098855. ISSN 0005-772X. 
  9. Morales, Carolina L; Arbetman, Marina P; Cameron, Sydney A; Aizen, Marcelo A (2013-07-15). "Rapid ecological replacement of a native bumble bee by invasive species". Frontiers in Ecology and the Environment 11 (10): 529–534. doi:10.1890/120321. ISSN 1540-9295. 
  10. "Director Agriculture Kashmir Choudhary Mohammad Iqbal visited Aru, Pahalgam". 2022-02-20. https://kashmirmirror.com/director-agriculture-kashmir-choudhary-mohammad-iqbal-visited-aru-pahalgam-2/. 
  11. Mirror, Kashmir (October 17, 2021). "Director Agriculture Kashmir Inaugurates 41 varieties of high yielding Fodder Crops at Fodder Seed Production Farm Aru". https://kashmirmirror.com/2021/10/17/director-agriculture-kashmir-inaugurates-41-varieties-of-high-yielding-fodder-crops-at-fodder-seed-production-farm-aru/. 
  12. "Red Clover: Pictures, Flowers, Leaves and Identification | Trifolium pratense". https://www.ediblewildfood.com/red-clover.aspx. 
  13. "Wildlife Crossings" (in en). 2019-07-16. http://www.nationalgeographic.org/article/wildlife-crossings/. 
  14. Indian medicinal plants : an illustrated dictionary. Khare, C. P., 1932–. Berlin: Springer. 2007. ISBN 9780387706375. OCLC 316267725. 
  15. "Red clover for treatment of hot flashes and menopausal symptoms: A systematic review and meta-analysis". J Obstet Gynaecol 36 (3): 301–11. 2016. doi:10.3109/01443615.2015.1049249. PMID 26471215. 
  16. "Red Clover". American Cancer Society. November 2008. http://www.cancer.org/treatment/treatmentsandsideeffects/complementaryandalternativemedicine/herbsvitaminsandminerals/red-clover. 
  17. W. Abebe (2002). "Herbal medication: potential for adverse interactions with analgesic drugs". Journal of Clinical Pharmacy and Therapeutics 27 (6): 391–401. doi:10.1046/j.1365-2710.2002.00444.x. PMID 12472978. 
  18. "Red clover (Trifolium pratense) Cautions – Epocrates Online". Online.epocrates.com. https://online.epocrates.com/noFrame/showPage.do?method=altmeds&MonographId=3098&ActiveSectionId=2. 
  19. Öhberg, H.; Bång, U. (2010). "Biological control of clover rot on red clover by Coniothyrium minitans under natural and controlled climatic conditions.". Biocontrol Science and Technology 20: 25–36. doi:10.1080/09583150903337805. 
  20. "Other National Symbols". Embassy of Denmark, Washington DC. http://www.ambwashington.um.dk/en/menu/InformationaboutDenmark/Culture/DanishNationalSymbols/Other+National+Symbols/. 
  21. "Red Clover". Vermont Historical Society. https://vermonthistory.org/explorer/discover-vermont/facts-figures/state-symbols/vermont-state-flower. 

Further reading

  • Vleugels, Tim; Roldan-Ruiz, Isabel; Cnops, Gerda (April 8, 2014). "Influence of flower and flowering characteristics on seed yield in diploid and tetraploid red clover". Plant Breeding 134 (1): 56–61. doi:10.1111/pbr.12224. 

External links

| mode = cs1 | title = Trifolium pratense | work = Germplasm Resources Information Network (GRIN) | url = | publisher = [[Organization:Agricultural Research ServAgricultural Research Service (ARS), United States Department of Agriculture (USDA) | access-date = }}

Wikidata ☰ Q156635 entry

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