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 Matricaria recutita
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| Matricaria recutita L. |
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Chamomilla chamomilla (L.) Rydb. |
Matricaria recutita or German chamomile, also spelled camomile, is an annual plant of the sunflower family Asteraceae. Synonyms are: Chamomilla chamomilla, Chamomilla recutita (accepted name according to the Flora Europaea), Matricaria chamomilla, and Matricaria suaveolens.
It usually grows near populated areas all over Europe and temperate Asia. It is widely introduced in temperate North America and Australia. As the seeds need open soil to survive, it often grows near roads, around landfills and in cultivated fields as a weed.
Other names include blue chamomile, wild chamomile, Hungarian chamomile, and scented mayweed.
The branched stem is erect and smooth and grows to a height of 15-60 cm. The long and narrow leaves are bipinnate or tripinnate.
The flowers are borne in paniculate capitula. The white ray florets are furnished with a ligule, while the disc florets are yellow. The hollow receptacle is swollen and lacks scales. This property distinguished German Chamomile from Corn Chamomile (Anthemis arvensis), which has a receptacle with scales. The flowers have a strong, aromatic smell, and bloom in early to mid summer.
The word chamomile comes from Greek χαμαίμηλον (chamaimēlon), "earth-apple"3, from χαμαί (chamai), "on the ground" + μήλον (mēlon), "apple", so called because of the applelike scent of the plant. (Note: The "ch-" spelling is used especially in science and pharmacology.)
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Uses
Herbalism
German Chamomile is used medicinally against sore stomach, irritable bowel syndrome, and as a gentle sleep aid. It can also aid in the assistance of defecation. It can be taken as an herbal tea, two teaspoons of dried flower per cup of tea. For a sore stomach, some recommend taking a cup every morning without food for two to three months. It is also used as a mouthwash against oral mucositis. It has acaricidal properties against certain mites, such as Psoroptes cuniculi. The primary known active ingredient of the essential oil from German Chamomile is bisabolol. 4 Other active ingredients include chamazulene, flavonoids and coumarin.
A 2006 review of the medical literature reported a number of beneficial effects of chamomile in in vitro and animal tests but added that more human clinical trials are needed before firm conclusions can be drawn. 5 Chamomile has sped healing time of wounds in animals.6 7 It also showed some benefit in an animal model of diabetes.8 Very preliminary in-vitro results show potential against cancer. 9 Potential risks include interference with warfarin and infant botulism in very young children.10 11
Chamomile is also used cosmetically, primarily to make a rinse for blonde hair.
Agriculture
Chamomile is sometimes known as "the plant doctor", because it is thought to help the growth and health of many other plants, especially ones that produce essential oils. It is thought to increase production of those oils, making certain herbs, like mints (spearmint, sage, oregano) and basil taste stronger in scent and flavor.
Chamomile tea is also thought to be useful to suppress fungal growth, for example, misting it over seedlings may prevent damping off.
Chamomile is frequently an invasive species in agricultural fields. Farmers often must control chamomile's spread to maintain productivity of their fields.
Possible side effects
Chamomile is a relative of ragweed and can cause allergy symptoms and can cross-react with ragweed pollen in individuals with ragweed allergies. It also contains coumarin and thus care should be taken to avoid potential drug interactions, e.g. with blood thinners.
While extremely rare, very large doses of Chamomile may cause nausea and vomiting. Even more rarely, rashes may occur.12
Conditions for growing and reproduction
Soil Type: German chamomile will tolerate many soils, but prefers a sandy, well-drained soil with a pH of 7.0-7.5 and lots of sun.
Cultivation: Space plants 15-30 cm apart. Chamomile does not require large amounts of fertilizer but depending on soil tests, small amounts of nitrogen, phosphorus, and potassium should be applied before planting.
The amounts of major nutrients that German chamomile needs for growing and reproduction are:
- C = Carbon 430,000 ppm
- H = Hydrogen 60,000 ppm
- O = Oxygen 430,000 ppm
- P = Phosphorus 2,000 ppm
- K = Potassium 10,000 ppm
- N = Nitrogen 8,500 ppm
- S = Sulfur 1,000 ppm
- Ca = Calcium 5,000 ppm
- Mg = Magnesium 2000 ppm13
References
Footnotes
- ^ Natural Resources Conservation Service (NRCS). "PLANTS Profile, Matricaria recutita" (HTML). The PLANTS Database. United States Department of Agriculture. Retrieved on 2008-06-15.
- ^ Matricaria recutita (TSN 38079). Integrated Taxonomic Information System. Retrieved on 15 June 2008.
- ^ Chamaimelon, Henry George Liddell, Robert Scott, A Greek-English Lexicon, at Perseus
- ^ The People's Pharmacy Guide to Home and Herbal Remedies
- ^ "A review of the bioactivity and potential health benefits of chamomile tea (Matricaria recutita L.)". Phytother Res. 20 (7): 519–30. July 2006. doi:. PMID : 16628544.
- ^ "An experimental study of the effects of Matricaria chamomilla extract on cutaneous burn wound healing in albino rats". Nat Prod Res. 22 (5): 423–8. 2008-03-20. doi:. PMID : 18404562.
- ^ "Wound healing activity of Matricaria recutita L. extract". J Wound Care. 16 (7): 298–302. July 2007. PMID : 17708380.
- ^ "Antihyperglycemic and antioxidative potential of Matricaria chamomilla L. in streptozotocin-induced diabetic rats". Nat Med (Tokyo).. 2008-02-13. PMID : 18404309.
- ^ "Antiproliferative and apoptotic effects of chamomile extract in various human cancer cells". J Agric Food Chem. 55 (23): 9470–8. 2007-11-14. doi:. PMID : 17939735.
- ^ "Warfarin interaction with Matricaria chamomilla". Cmaj.;(): 174 (9): 1281–2. 2006-04-25. PMID : 16636327.
- ^ "Presence of Clostridium botulinum spores in Matricaria chamomilla (chamomile) and its relationship with infant botulism". Int J Food Microbiol. 121 (3): 357–60. 2008-02-10. doi:. PMID : 18068252.
- ^ Readers' Digest Association
- ^ http://www.omafra.gov.on.ca/english/crops/hort/herbs/chamom.htm
General references
- Graedon, Joe; Theresa Graedon (2001). The People's Pharmacy Guide to Home and Herbal Remedies. St. Martin's Griffin. pp. 283. ISBN 978-0312267643.
- Reader's Digest Association (1999). The Healing Power of Vitamins, Minerals, and Herbs. Reader's Digest. pp. 259. ISBN 978-0762101320.
Gallery
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External links
- Chamomile herbal actions, recipes, properties
- Chamomile medical uses, side effects, dosage and general information
- Chamomile for IBS
- Herbal Supplements in Pregnancy - Lists active chemical components of chamomile
- Wild Chamomile in wildflowers of Israel
- Chamomile tea 'may ease diabetes - BBC
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Wikipedia content modification information:
- This page was last modified on 7 January 2009, at 18:49.
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