Allium siculum explained

Allium siculum (syn. Nectaroscordum siculum), known as honey garlic, Sicilian honey lily, Sicilian honey garlic, or Mediterranean bells, is a European and Turkish species of plant in the genus Allium. It is native to the regions around the Mediterranean and Black Seas, and grown in other regions as an ornamental and as a culinary herb.[1]

Description

It has showy clusters of gracefully drooping bell-shaped blossoms produced in May to early June sitting atop a tall green stem, to 1.2 m in height. The florets (blossoms), suspended on long drooping pedicels, are cream colored with a maroon streak down each petal, have white flared tips, and are tinted green at the base. The blossoms are followed by decorative, erect seed pods in late summer. The blue-gray foliage is triangular in cross-section and strongly twisting along the length of the ascending leaves.[2] [3] A penetrating, skunky odor is released when the plant is cut.

Distribution and habitat

Allium siculum is native to Turkey, iran, Crimea, Greece, Bulgaria, Romania, southern France including Corsica, and Italy (Basilicata, Abruzzo, Umbria, Toscana, Sicily, Sardinia),[4] growing in damp, shady woods.

Taxonomy

Allium siculum is a member of a small subgenus Nectaroscordum of Allium, which consists of only this species and Allium tripedale.[5]

A. siculum comprises two subspecies:

Uses

Ornamental

Allium siculum is grown as an ornamental in flower gardens.[8] It has showy, drooping blossoms, with each umbel (clusters of flowers on stalks originating in the same place)[9] having up to 30 individual flowers, which are white, pink, and green in colour.[10] Although the flowers initially face downwards, they turn to face upwards just before forming seedheads.[11] It also has unusual twisted foliage.[12] Unlike the majority of other Allium species, A. siculum grows well in shade.[13]

Culinary

In Bulgaria, the leaves of Allium siculum subsp. dioscoridis, which is known by the vernacular names 'samardala' and 'Bulgarian honey garlic', are used in the preparation of spice mixes and salts, and as a seasoning.[14] [15] [16]

Properties

Lachrymatory agents

Similarly to onions when chopped, if Allium siculum is crushed it gives off chemicals that make the eyes water, which are termed 'lachrymatory agents'.[17] [18] The lachrymatory agent (Z)-butanethial S-oxide, along with several 1-butenyl thiosulfinates are detected by mass spectrometry using a DART ion source. (Z)-Butanethial S-oxide (the higher homolog of syn-propanethial-S-oxide, the onion lachrymatory agent) isolated from the plant was shown to be identical to a synthetic sample. The precursor to the lachrymatory compound, (RS,RC)-(E)-S-(1-butenyl) cysteine S-oxide (homoisoalliin), was isolated from homogenates of A. siculum, and a closely related species, Allium tripedale, and fully characterized.[19] [20]

A. siculum is not eaten by grazing animals, such as deer; this is thought to be because of its garlic-like smell.

Toxicity

A. siculum may be toxic to cats and dogs. In other Allium species, this toxicity has been attributed to the presence of organosulphur compounds which induce haemolysis, resulting in haemolytic anaemia.[21]

Notes and References

  1. Web site: World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew. 2021-03-21. wcsp.science.kew.org.
  2. Web site: Allium Species Four . Pacific Bulb Society .
  3. Web site: Nectaroscordum siculum . Royal Horticultural Society . 2012-03-10 . https://web.archive.org/web/20140329184523/http://apps.rhs.org.uk/plantselector/plant?plantid=1320 . 2014-03-29 . dead .
  4. http://luirig.altervista.org/flora/taxa/index1.php?scientific-name=allium+siculum Altervista Flora Italiana, Aglio della Sicilia, Allium siculum
  5. Friesen, N. . Fritsch, R. M. . Blattner, F. R. . Phylogeny and new intrageneric classification of Allium (Alliaceae) based on nuclear ribosomal DNA ITS sequences . Aliso . 2006 . 22 . 372–395 . 10.5642/aliso.20062201.31 . free .
  6. Web site: Allium siculum subsp. dioscoridis (Sm.) K.Richt.. 2021-03-20. Plants of the World Online. Kew Science.
  7. Web site: Allium siculum subsp. siculum. 2021-03-20. Plants of the World Online. Kew Science.
  8. Web site: Allium siculum Ucria. live. 2021-03-20. Plants of the World Online. Kew Science. https://web.archive.org/web/20170906014829/http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:528868-1 . 2017-09-06 .
  9. Web site: 2020. Definition of umbel. dead. 2021-03-20. Lexico.com. Oxford University Press. https://web.archive.org/web/20211102075622/https://www.lexico.com/definition/umbel . 2021-11-02 .
  10. Web site: Nectaroscordum siculum. 2021-03-20. BBC Gardeners' World Magazine. en.
  11. Web site: Leendertz. Lia. 2011-09-16. Plant of the week: Nectaroscordum siculum. live. 2021-03-21. The Guardian. https://web.archive.org/web/20160521075833/http://www.theguardian.com:80/lifeandstyle/2011/sep/16/plant-of-week-nectaroscordum-siculum . 2016-05-21 .
  12. Mashayekhi. Saeideh. Columbus. J. Travis. 2014. Evolution of leaf blade anatomy in Allium (Amaryllidaceae) subgenus Amerallium with a focus on the North American species. American Journal of Botany. en. 101. 1. 63–85. 10.3732/ajb.1300053. 24384305. 1537-2197.
  13. Web site: Planting for Pollinators. live. 2021-03-21. royalparks.org.uk. The Royal Parks. https://web.archive.org/web/20200722105011/https://www.royalparks.org.uk/__data/assets/pdf_file/0006/116574/Pollinator-Plants-shade.pdf . 2020-07-22 .
  14. Ivanova. Teodora. Chervenkov. Mihail. Stoeva. Tatyana. Chervenkov. Stoyan. Bosseva. Yulia. Georgieva. Almira. Tsvetanova. Elina. Alexandrova. Albena. Dimitrova. Dessislava. 2018-06-01. Samardala: specificities and changes in the ethnobotanical knowledge about Allium siculum subsp. dioscoridis (Sm.) K. Richt. in Bulgaria. Genetic Resources and Crop Evolution. en. 65. 5. 1349–1357. 10.1007/s10722-018-0618-5. 3748750. 1573-5109.
  15. Vrancheva. R.. Stoyanova. M.. Mihaylova. D.. Aneva. I.. Deseva. I.. Petkova. N.. Ivanov. I.. Pavlov. A.. October 2019. Polyphenol profile and antioxidant activity of wild growing populations of Nectaroscordum siculum ssp. bulgaricum (Janka) Stearn in Bulgaria. International Food Research Journal. 26. 5. 1635–1640.
  16. Alexieva, Iordanka; Mihaylova, Dasha; and Popova, Aneta (2013). Evaluation of the antioxidant capacity of aqueous extracts of fresh samardala (Allium bulgaricum L.) leaves.
  17. Web site: 2020. Definition of lachrymatory. 2021-03-21. Lexico.com. Oxford University Press.
  18. Web site: Lachrymatory agent. 2021-03-21. TheFreeDictionary.com.
  19. Book: Block, E. . Garlic and Other Alliums: The Lore and the Science . Royal Society of Chemistry . 2010 . 978-0854041909 .
  20. Kubec, R. . Cody, R. B. . Dane, A. J. . Musah, R. A. . Schraml, J. . Vattekkatte, A. . Block, E. . 2010 . Applications of DART Mass Spectrometry in Allium Chemistry. (Z)-Butanethial S-Oxide and 1-Butenyl Thiosulfinates and their S-(E)-1-Butenylcysteine S-Oxide Precursor from Allium siculum . Journal of Agricultural and Food Chemistry . 58 . 2 . 1121–1128 . 10.1021/jf903733e . 20047275 .
  21. Salgado. BS. Monteiro. LN. Rocha. NS. 2011. Allium species poisoning in dogs and cats. The Journal of Venomous Animals and Toxins Including Tropical Diseases. 17. 1. 4–11. 10.1590/S1678-91992011000100002. 1678-9199. free.

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