Ammi majus

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Ammi majus
Ammi majus Sturm8.jpg

Least Concern (IUCN 3.1)[1]
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Apiales
Family: Apiaceae
Genus: Ammi
Species:
A. majus
Binomial name
Ammi majus
Synonyms[2]
Synonyms list
    • Aethusa ammi Spreng.
    • Ammi boeberi Hell. ex Hoffm.
    • Ammi broussonetii DC.
    • Ammi cicutifolium Willd. ex Schult.
    • Ammi elatum Salisb.
    • Ammi glaucifolium L.
    • Ammi intermedium DC.
    • Ammi pauciradiatum Hochst. ex A.Rich.
    • Ammi pumilum (Brot.) DC.
    • Anethum pinnatum Ruiz & Pav. ex Urban
    • Apium ammi Crantz nom. illeg.
    • Apium ammi-maius Crantz
    • Apium candollei M.Hiroe
    • Apium petraeum Crantz
    • Apium pumilum (Brot.) Calest. nom. illeg.
    • Carum majus (L.) Koso-Pol.
    • Cuminum aethiopicum Royle
    • Cuminum regium Royle
    • Daucus glaber Parsa nom. illeg.
    • Daucus parsae M.Hiroe
    • Selinum ammoides E.H.L. Krause
    • Sison pumilum Brot.

Ammi majus, commonly called bishop's weed,[3] false bishop's weed,[3] bullwort,[3] greater ammi,[3] lady's lace,[3] false Queen Anne's lace,[4] or laceflower, is a member of the carrot family Apiaceae. The plant, which has white lace-like flower clusters, has a large distribution through Southern Europe, North Africa and West and Central Asia, though it is hypothesized to be native to the Nile River Valley.

Uses[]

In Egypt around 2000 BC, the juice of Ammi majus was rubbed on patches of vitiligo[5] after which patients were encouraged to lie in the sun.[6] In the 13th century, vitiligo was treated with a tincture of honey and the powdered seeds of a plant called "aatrillal," which was abundant in the Nile River Valley. The plant has since been identified as A. majus,[7] but the trade name Aatrillal is still used today to refer to the yellowish-brown powder made from its seeds.

Ammi majus contains significant amounts of both bergapten and xanthotoxin (also known as methoxsalen), two psoralen derivatives well known for their photosensitizing effects. Indeed, A. majus may well be the world's major source of methoxsalen.[6]

The practice of using Ammi majus to treat vitiligo implicitly acknowledges the hyperpigmentation effects caused by exposure to a photosensitizing agent (such as methoxsalen) followed by ultraviolet radiation. An excess of either the photosensitizing agent or subsequent UV exposure can lead to phytophotodermatitis,[6][8] a serious skin inflammation. Despite this danger, A. majus is cultivated for its furanocoumarins, which are still used for the treatment of skin disease.[9]

Cultivation[]

Like its close relative Ammi visnaga, A. majus and its cultivars are frequently seen in gardens where they are grown from seed annually. The species[10] and the cultivar 'Graceland'[11] have both gained the Royal Horticultural Society's Award of Garden Merit.

  • Ammi majus flowerhead1 NWS (15367278999).jpg
  • Ammi majus leaf1 NWS (14933146884).jpg
  • Neuchâtel Herbarium - Ammi majus - NEU000005508.jpg

References[]

  1. ^ Schweizer, F. (2014). "Thymus capitellatus". IUCN Red List of Threatened Species. 2014: e.T202922A2758033. Retrieved 31 March 2021.
  2. ^ The Plant List: A Working List of All Plant Species, retrieved 20 December 2015
  3. ^ a b c d e "Ammi majus". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 8 January 2018.
  4. ^ "Flowers in Israel".
  5. ^ Marshall, Scott R (2006). "Technology Insight: ECP for the treatment of GvHD—can we offer selective immune control without generalized immunosuppression?". Nature Clinical Practice Oncology. Nature Publishing. 3 (6): 302–314. doi:10.1038/ncponc0511. ISSN 1743-4254.
  6. ^ a b c McGovern, Thomas W; Barkley, Theodore M (2000). "Botanical Dermatology". The Electronic Textbook of Dermatology. Internet Dermatology Society. 37 (5). Section Phytophotodermatitis. doi:10.1046/j.1365-4362.1998.00385.x. PMID 9620476. S2CID 221810453. Retrieved October 7, 2018.
  7. ^ Wyss, P. (2000). "History of Photomedicine". In Wyss, P.; Tadir, Y.; Tromberg, B. J.; Haller, U. (eds.). Photomedicine in Gynecology and Reproduction. Basel: Karger. pp. 4–11. doi:10.1159/000062800. ISBN 3-8055-6905-X.
  8. ^ Alouani, I.; Fihmi, N.; Zizi, N.; Dikhaye, S. (2018). "Phytophotodermatitis following the use of Ammi Majus Linn (Bishop's weed) for vitiligo" (PDF). Our Dermatol. Online. 9 (1): 93–94. doi:10.7241/ourd.20181.29.
  9. ^ "Plants For A Future: Ammi majus".
  10. ^ "RHS Plantfinder – Ammi majus". Royal Horticultural Society. 2017. Retrieved 12 January 2018.
  11. ^ "RHS Plantfinder – Ammi majus 'Graceland'". Royal Horticultural Society. 2017. Retrieved 5 January 2018.

External links[]


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