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Heracleum (plant)

Genus of flowering plants in the celery family

Summary

Genus of flowering plants in the celery family

|Barysoma |Bunge |Sphondylium |Adans. |Wendia |Hoffm. }}

Heracleum, known colloquially as hogweed, is a genus of biennial and perennial herbs in the carrot family Apiaceae. They are found throughout the temperate northern hemisphere and in high mountains as far south as Ethiopia. Common names for the genus or its species include cow parsnip, cogweed and keck.

The genus name Heracleum was described by Carl Linnaeus in 1753. It derives from the Ancient Greek () "of Heracles", referring to the mythological hero.

Species

Many species of the genus Heracleum are similar in appearance. An outlier is H. mantegazzianum, the large size of which is exceptional. Common species include:

  • Heracleum mantegazzianum, giant hogweed, native to the western Caucasus region of Eurasia, a serious invasive species in many areas of Europe and North America
  • Heracleum sosnowskyi, Sosnowsky's hogweed, native to the eastern Caucasus, a common weed throughout Europe and Asia
  • Heracleum persicum, Persian hogweed, native to Iran, Iraq, and Turkey
  • Heracleum sphondylium, common hogweed, native to Europe and Asia
  • Heracleum maximum, cow parsnip, native and common in North America

, Plants of the World Online accepts the following 91 species:, it had previously in 2019, up to 148.

  • Heracleum abyssinicum (Boiss.) C.Norman
  • Heracleum aconitifolium Woronow
  • Heracleum akasimontanum Koidz.
  • Heracleum albovii Manden.
  • Heracleum amanum Boiss. & Kotschy
  • Heracleum angustisectum (Stoj. & Acht.) Peev
  • Heracleum anisactis Boiss. & Hohen.
  • Heracleum antasiaticum Manden.
  • Heracleum apiifolium Boiss.
  • Heracleum argaeum Boiss. & Balansa
  • Heracleum asperum (Hoffm.) M.Bieb.
  • Heracleum austriacum L.
  • Heracleum bhutanicum M.F.Watson
  • Heracleum biternatum W.W.Sm.
  • Heracleum candicans Wall. ex DC.
  • Heracleum × carbonnieri Reduron, Michaud & J.Molina
  • Heracleum carpaticum Porcius
  • Heracleum chorodanum (Hoffm.) DC.
  • Heracleum crenatifolium Boiss.
  • Heracleum cyclocarpum K.Koch
  • Heracleum dalgadianum S.M.Almeida
  • Heracleum dissectifolium K.T.Fu
  • Heracleum dissectum Ledeb.
  • Heracleum egrissicum Gagnidze
  • Heracleum elgonense (H.Wolff) Bullock
  • Heracleum fargesii H.Boissieu
  • Heracleum forrestii H.Wolff
  • Heracleum franchetii M.Hiroe
  • Heracleum freynianum Sommier & Levier
  • Heracleum gorganicum Rech.f.
  • Heracleum grandiflorum Steven ex M.Bieb.
  • Heracleum hemsleyanum Diels
  • Heracleum henryi H.Wolff
  • Heracleum humile Sm.
  • Heracleum incanum Boiss. & A.Huet
  • Heracleum jacquemontii C.B.Clarke
  • Heracleum kansuense Diels
  • Heracleum kingdonii H.Wolff
  • Heracleum lehmannianum Bunge
  • Heracleum leskovii Grossh.
  • Heracleum ligusticifolium M.Bieb.
  • Heracleum likiangense H.Wolff
  • Heracleum mantegazzianum Sommier & Levier
  • Heracleum maximum W.Bartram
  • Heracleum moellendorffii Hance
  • Heracleum nyalamense R.H.Shan & T.S.Wang
  • Heracleum oncosepalum (Hand.-Mazz.) Pimenov & Kljuykov
  • Heracleum oreocharis H.Wolff
  • Heracleum orphanidis Boiss.
  • Heracleum ossethicum Manden.
  • Heracleum paphlagonicum Czeczott
  • Heracleum pastinaca Fenzl
  • Heracleum pastinacifolium K.Koch
  • Heracleum persicum Desf. ex Fisch., C.A.Mey. & Avé-Lall.
  • Heracleum peshmeniana Ekim
  • Heracleum pinnatum C.B.Clarke
  • Heracleum platytaenium Boiss.
  • Heracleum ponticum (Lipsky) Schischk. ex Grossh.
  • Heracleum pubescens (Hoffm.) M.Bieb.
  • Heracleum pumilum Vill.
  • Heracleum rapula Franch.
  • Heracleum rawianum C.C.Towns.
  • Heracleum rechingeri Manden.
  • Heracleum × rodnense Nyár. & Todor
  • Heracleum roseum Steven
  • Heracleum scabridum Franch.
  • Heracleum scabrum Albov
  • Heracleum schansianum Fedde ex H.Wolff
  • Heracleum schelkovnikowii Woronow
  • Heracleum sibiricum L.
  • Heracleum sommieri Manden.
  • Heracleum sosnowskyi Manden.
  • Heracleum souliei H.Boissieu
  • Heracleum sphondylium L.
  • Heracleum stenopteroides Fedde ex H.Wolff
  • Heracleum stenopterum Diels
  • Heracleum subglabrum Kitam.
  • Heracleum subtomentellum C.Y.Wu & M.L.Sheh
  • Heracleum sumatranum Buwalda ex Steenis
  • Heracleum taylorii C.Norman
  • Heracleum tiliifolium H.Wolff
  • Heracleum trachyloma Fisch. & C.A.Mey.
  • Heracleum vicinum H.Boissieu
  • Heracleum villosum (Hoffm.) Fisch. ex Spreng.
  • Heracleum wenchuanense F.T.Pu & X.J.He
  • Heracleum wilhelmsii Fisch. & C.A.Mey.
  • Heracleum wolongense F.T.Pu & X.J.He
  • Heracleum woodii M.F.Watson
  • Heracleum xiaojinense F.T.Pu & X.J.He
  • Heracleum yungningense Hand.-Mazz. |Heracleum mantegazzianum lapinniemi.jpg| Giant hogweed, Heracleum mantegazzianum |HeracleumSosnowskyi 001.jpg| Sosnowsky's hogweed, Heracleum sosnowskyi |Heracleum-lanatum01.jpg| Cow parsnip, Heracleum maximum |Illustration Heracleum sphondylium0.jpg| Common hogweed, Heracleum sphondylium |Heracleum austriacum ssp. siifolium PID1404-1.jpg|Heracleum austriacum

Classification and naming

Other than size, the related species H. mantegazzianum, H. sosnowskyi, and H. persicum have very similar characteristics. The common name giant hogweed usually refers to H. mantegazzianum alone but in some locales that common name refers to all three species as a group. Both H. maximum and H. sphondylium are often referred to as cow parsnip. To avoid confusion, these species are sometimes referred to as American cow parsnip and European cow parsnip, respectively.

The morphological similarity of species within the genus Heracleum and the difficulty of botanical identification has led to numerous synonyms and naming issues. For example, the classification of the species now widely known as H. maximum has been inconsistent. In the literature, the scientific names H. lanatum, H. maximum, and others are used interchangeably. Prior to 2000, the former name was most popular, but today the latter name is in vogue.

Phototoxic effects

Most species of the genus Heracleum are known to cause phytophotodermatitis. In particular, the public health risks of giant hogweed (H. mantegazzianum) are well known.

At least 36 species of the genus Heracleum have been reported to contain furanocoumarin, a chemical compound that sensitizes human skin to sunlight. Of those, at least 25 species contained a psoralen derivative, either bergapten (5-methoxypsoralen) or methoxsalen (8-methoxypsoralen). Three of those species (H. mantegazzianum, H. sosnowskyi, and H. sphondylium) were found to contain both psoralen derivatives.

References

Bibliography

References

  1. Bailey, L.H.. (1976). "Hortus third: A concise dictionary of plants cultivated in the United States and Canada". Macmillan.
  2. "Heracleum L.". Missouri Botanical Garden.
  3. (May 2012). "Giant Hogweed (Heracleum mantegazzianum): Best Management Practices in Ontario". Ontario Invasive Plant Council, Peterborough, ON.
  4. "''Heracleum'' L. {{!}} Plants of the World Online {{!}} Kew Science".
  5. (2024). "Heracleum kurdicum sp. nov. (Apiaceae), a new species from Hakkari (Turkey)". Adansonia.
  6. (2005). "The giant hogweed best practice manual: guidelines for the management and control of invasive weeds in Europe". Hørsholm: Center for Skov, Landskab og Planlægning/Københavns Universitet.
  7. "Heracleum sphondylium common names".
  8. "German-English Dictionary: cow parsnip".
  9. (1998). "Botanical Dermatology". Internet Dermatology Society.
  10. (June 18, 2018). "Giant Hogweed Warning: Plant That Can Cause Blindness, Burn Skin, Spreads Into New State". Newsweek.
  11. (2017). "Giant Hogweed And Photodermatitis". Military Medical Science Letters.
  12. (1976). "Phytophotodermatitis from Heracleum mantegazzianum". Contact Dermatitis.
  13. (1979). "Botanical Dermatology: Plants and Plant Products Injurious to the Skin". Greengrass.
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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