Chamaemelum nobile

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Chamomile
Chamaemelum nobile.jpg
Chamaemelum nobile[1]
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Chamaemelum
Species:
C. nobile
Binomial name
Chamaemelum nobile
Synonyms

Anthemis nobilis L.

Chamaemelum nobile
Roman chamomile
Roman chamomile (Chamaemelum nobile) essential oil

Chamaemelum nobile, commonly known as chamomile (also spelled camomile), is a low perennial plant found in dry fields and around gardens and cultivated grounds in Europe, North America, and South America. Its synonym is Anthemis nobilis, with various common names, such as Roman chamomile, English chamomile, garden chamomile, ground apple, low chamomile, mother's daisy or whig plant.[2] C. nobile is a source of the herbal product known as chamomile using dried flowers for flavoring teas or as a fragrance used in aromatherapy.[3][4] Chamomile has no established medicinal properties.[3][4]

Description[edit]

Chamaemelum nobile has daisy-like white flowers and procumbent stems; the leaves are alternate, bipinnate, finely dissected, and downy to glabrous. The solitary, terminal flowerheads, rising 20–30 cm (8–12 in) above the ground, consist of prominent yellow disk flowers and silver-white ray flowers. The flowering time in the Northern Hemisphere is June and July, and its fragrance is sweet, crisp, fruity and herbaceous.[5] Although the plant is often confused with German chamomile (Matricaria chamomilla), its morphology, properties and chemical composition are markedly different.[6]

Etymology[edit]

The word chamomile and the genus name Chamaemelum derive from the Greek χαμαίμηλον (chamaimēlon), "earth-apple",[7] from χαμαί (chamai), "on the ground" + μήλον (mēlon), "apple", so-called because of the apple-like scent of the plant.

The plant obtained the name "nobile" (Latin, noble) because of its putative therapeutic properties, which were believed to be better than those of the German chamomile (Matricaria chamomilla L.).[8][9]

History[edit]

Roman chamomile (C. nobile L.) has a history of use in traditional medicine since the Middle Ages.[9] The European cultivation of the plant started in England in the 16th century.[8] The plant was listed first in the pharmacopoeia of Würtenberg as a carminative, painkiller, diuretic and digestive aid.[9] Joachim Camerarius was the first to discover and name chamaemelum nobile in 1598 in Rome.[9] In Egypt, chamaemelum nobile was used as a symbol of dedication to their gods.[10]

Conservation[edit]

Chamaemelum nobile is listed as least concern on the Red List but the plant population trend in the UK is decreasing at a significant rate. This decline in the Chamaemelum nobile population was caused by the drainage of wet grasslands, decrease in grazing, and the reduction of pasture that was used as arable fields.[11] There is speculation that wild plant collecting could also be a cause of this species population decline.[11]

Although the species population is declining there are a few plants placed in at least one land and water protected area. There are no educational awareness programs, international legislations, or international management for this species.[11]

Uses[edit]

Extracts or dried flowers of Chamaemelum nobile are used in hair care and skincare products.[3][4][12] The plant may be used to flavor foods, in herbal teas, perfumes, and cosmetics.[3][4][5] It is used in aromatherapy in the belief it is a calming agent to reduce stress and promote sleep.[3][4][12] Chamomile essential oil contains sesquiterpenes, terpene lactones (including the blue compound, chamazulene), acetylene derivatives, and polyphenols, which contribute to the fragrance and may be extracted individually.[4]

It can be used to create a fragrant chamomile lawn. A chamomile lawn needs light soil, adequate moisture, and sun in order to thrive. Each square meter contains 83-100 plants. The lawn is only suitable to light foot traffic or in places where mower access is difficult.[13]

Folk medicine and adverse effects[edit]

Although used in folk medicine, there is no scientific evidence it has any medicinal uses.[3] Alternative medicine practices approved in Germany include use of chamomile as a topical medication or inhalant for mouth and respiratory tract irritations.[4]

Chamomile is likely unsafe for use during pregnancy, and its topical use for skin disorders may cause contact dermatitis.[3][4] There are no known interactions with prescription drugs.[3] Consuming chamomile tea may adversely affect anticoagulant drugs.[4]

Other names[edit]

The plant has diverse common names, among which Roman chamomile or sweet chamomile are used during the 21st century.[3]

References[edit]

  1. ^ 1897 illustration from Franz Eugen Köhler, Köhler's Medizinal-Pflanzen
  2. ^ T. K. Lim Edible Medicinal And Non-Medicinal Plants: Volume 7, Flowers at Google Books
  3. ^ a b c d e f g h i "Roman chamomile". National Library of Medicine, US National Institutes of Health. 21 June 2019. Retrieved 5 February 2021.Public Domain This article incorporates text from this source, which is in the public domain.
  4. ^ a b c d e f g h i "Chamomile". Drugs.com. 10 December 2020. Retrieved 7 February 2021.
  5. ^ a b Gualtiero Simonetti (1990). Stanley Schuler (ed.). Simon & Schuster's Guide to Herbs and Spices. Simon & Schuster, Inc. ISBN 0-671-73489-X.
  6. ^ Moumita., Das (2014). Chamomile : medicinal, biochemical, and agricultural aspects. Boca Raton: CRC Press. ISBN 9781466577602. OCLC 881886704.
  7. ^ Chamaimelon, Henry George Liddell, Robert Scott, A Greek-English Lexicon at Perseus
  8. ^ a b Hiller, Karl; Melgiz, Matthias F. (1999). Lexikon der Arzneipflanzen und Drogen. Heidelberg: Spektrum Akademischer Verlag GmbH.
  9. ^ a b c d "Assessment report on Chamaemelum nobile (L.)" (PDF). Committee on Herbal Medicinal Products, European Medicines Agency. 22 November 2011. Retrieved 7 February 2021.
  10. ^ "Roman Chamomile: a forgotten treasure | Mecklenburgh Square Garden". Retrieved 2020-12-10.
  11. ^ a b c Group), Sonia Khela (Cave Invertebrate Specialist (2013-03-26). "IUCN Red List of Threatened Species: Chamaemelum nobile". IUCN Red List of Threatened Species. Retrieved 2020-12-11.
  12. ^ a b "Chamomile - Chamaemelum nobile | Plants | Kew". www.kew.org. Retrieved 2020-12-11.
  13. ^ "Camomile lawn". rhs.org. Retrieved 21 July 2015.

Public Domain This article incorporates public domain material from the U.S. National Cancer Institute document: "Dictionary of Cancer Terms".