Oenanthe (plant)

Last updated

Oenanthe
Koeh-228.jpg
Oenanthe aquatica
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Apiales
Family: Apiaceae
Subfamily: Apioideae
Tribe: Oenantheae
Genus: Oenanthe
L.
Synonyms [1]
List
    • DasylomaDC.
    • GlobocarpusCaruel
    • KarsthiaRaf.
    • OenosciadiumPomel
    • PhellandriumL.
    • StephanorossiaChiov.
    • VolkensiellaH.Wolff
    • CyssopetalumTurcz.
Contrast between hemlock water dropwort (Oenanthe crocata, right) and poison hemlock (Conium maculatum, spotted stems on left) Oenanthe April 2011-1.jpg
Contrast between hemlock water dropwort ( Oenanthe crocata , right) and poison hemlock ( Conium maculatum , spotted stems on left)

Oenanthe, known as water dropworts, oenanthes, [2] water parsleys, [3] and water celeries, [4] are a genus of plants in the family Apiaceae. Most of the species grow in damp ground, such as in marshes or in water.

Contents

Several of the species are extremely poisonous, the active poison being oenanthotoxin. The most notable of these is O. crocata, which lives in damp, marshy ground, and resembles celery with roots like a bunch of large white carrots. The leaves may be eaten safely by livestock, but the stems, and especially the carbohydrate-rich roots are much more poisonous. Animals familiar with eating the leaves may eat the roots when these are exposed during ditch clearance: one root is sufficient to kill a cow, and human fatalities are also known. It has been referred to as the most poisonous of all British plants, [5] and is considered particularly dangerous because of its similarity to several edible plants. [6]

The species O. javanica , commonly known as Chinese celery or Japanese parsley (seri; not to be confused with mitsuba or Japanese wild celery, Cryptotaenia japonica) is edible and grown in several countries of eastern Asia, as well as in Italy and India, where the spring growth is relished as a vegetable.

Taxonomy and naming

The name "Oenanthe" was used in ancient times to refer to several different plants, one of which was described by Pedanius Dioscorides [7] as having "white flowers... and many round heads." This was [mis]interpreted by medieval herbalists as dropwort or an umbellifer. [8] By the 18th century it was being widely used for water-dropworts. For example, in Hortus Cliffortianus hemlock water-dropwort was called Oenanthe foliis omnibus multifidis obtusis subaequalidus. Linnaeus formalised it as a generic name in Species Plantarum in 1753. [9]

Although the word is ultimately derived from the Ancient Greek οίνος, "wine" and άνθος, "flower", this has no meaning when applied to the water-dropworts other than as an arbitrary name for the genus. Subsequent speculation that it refers to the smell of the flowers [10] or intoxication caused by these plants [11] are probably mistaken.

The word "dropwort" refers to the tubers produced amongst the roots of certain species in the genus. [12]

Species

As of 2020, Kew's Plants of the World Online accepts 33 species of Oenanthe: [1]

Identification

Tubular water-dropwort inflorescence, showing the lack of bracts, the stalks (rays) of the umbels, and the narrow segments of the upper leaves Oenanthe fistulosa rays.jpg
Tubular water-dropwort inflorescence, showing the lack of bracts, the stalks (rays) of the umbels, and the narrow segments of the upper leaves

The following simplified key can be used to distinguish the six British water-dropworts, by eliminating them one by one. [13] To use the key, a few terms are needed: bracts are small, leaf-like appendages at the bottom of the primary umbels; rays are the branches of the primary umbels; petioles are leaf stalks. Refer to the notes on the species pages to confirm the identification.

1. Plants with bracts and ovate leaflets... O. crocata

2. Plants with bracts and narrow leaflets, rays thickening in fruit... O. pimpinelloides

3. Plants with bracts and narrow leaflets, rays not thickening in fruit... O. lachenalii

4. No bracts, upper leaves with ovate segments... O. aquatica

5. No bracts, upper leaves with narrow segments, petiole hollow... O. fistulosa

6. No bracts, upper leaves with narrow segments, petiole solid, rays thickening in fruit... O. silaifolia

7. No bracts, upper leaves with narrow segments, petiole solid, rays not thickening in fruit... O. lachenalii

Sardonic grin

Scientists at the University of Eastern Piedmont wrote that they had identified hemlock water dropwort (Oenanthe crocata) as the plant responsible for producing the sardonic grin. [14] [15] This plant is a possible candidate for the "sardonic herb", which was a neurotoxic plant referred to in ancient histories. It was purportedly used for the ritual killing of elderly people and criminals in Nuragic Sardinia, in which they were intoxicated with the herb and then dropped from a high rock or beaten to death. [11] [16]

Fossil record

Oenanthe aquatica fossil fruit halves have been recorded from Upper Miocene of Bulgaria, Pliocene of Thuringia and the Pliocene and Pleistocene of Poland. [17]

Related Research Articles

<span class="mw-page-title-main">Apiaceae</span> Family of flowering plants

Apiaceae or Umbelliferae is a family of mostly aromatic flowering plants named after the type genus Apium, and commonly known as the celery, carrot or parsley family, or simply as umbellifers. It is the 16th-largest family of flowering plants, with more than 3,800 species in about 446 genera, including such well-known, and economically important plants as ajwain, angelica, anise, asafoetida, caraway, carrot, celery, chervil, coriander, cumin, dill, fennel, lovage, cow parsley, parsley, parsnip and sea holly, as well as silphium, a plant whose exact identity is unclear and may be extinct.

<span class="mw-page-title-main">Cicutoxin</span> Chemical compound

Cicutoxin is a naturally-occurring poisonous chemical compound produced by several plants from the family Apiaceae including water hemlock (Cicuta species) and water dropwort (Oenanthe crocata). The compound contains polyene, polyyne, and alcohol functional groups and is a structural isomer of oenanthotoxin, also found in water dropwort. Both of these belong to the C17-polyacetylenes chemical class.

<i>Risus sardonicus</i> Sustained spasm of the facial muscles

Risus sardonicus or rictus grin is a highly characteristic, abnormal, sustained spasm of the facial muscles that appears to produce grinning. It may be caused by tetanus, strychnine poisoning, or Wilson's disease, and has been reported after execution by hanging.

<span class="mw-page-title-main">North Somerset Levels</span>

The North Somerset Levels is a coastal plain, an expanse of low-lying flat ground, which occupies an area between Weston-super-Mare and Bristol in North Somerset, England. The River Banwell, River Kenn, River Yeo and Land Yeo are the three principal rivers draining the area.

<span class="mw-page-title-main">Portencross</span> Human settlement in Scotland

Portencross is a hamlet near Farland Head in North Ayrshire, Scotland. Situated about three kilometres west of Seamill and about two kilometres south of Hunterston B nuclear power station, it is noted for Portencross Castle.

<span class="mw-page-title-main">Oenanthotoxin</span> Chemical compound

Oenanthotoxin is a toxin extracted from hemlock water-dropwort and other plants of the genus Oenanthe. It is a central nervous system poison, and acts as a noncompetitive antagonist of the neurotransmitter gamma-aminobutyric acid. A case has been made for the presence of this toxin in local Oenanthe species playing a causative role in euthanasia in ancient Sardinia. It was crystallized in 1949 by Clarke and co-workers. It is structurally closely related to the toxins cicutoxin and carotatoxin. Oenanthotoxin is a C17 polyacetylene isomer of cicutoxin.

<span class="mw-page-title-main">Sardonicism</span> Expressions of humor used during adversity: cynicism, derision, skepticism

To be sardonic is to be disdainfully or cynically humorous, or scornfully mocking. A form of wit or humour, being sardonic often involves expressing an uncomfortable truth in a clever and not necessarily malicious way, often with a degree of skepticism.

Falling is execution by throwing or dropping a person from a great height. It has been used since ancient times. People executed in this way die from injuries caused by hitting the ground at high speed.

<i>Oenanthe pimpinelloides</i> Species of flowering plant

Oenanthe pimpinelloides is a species of flowering plant in the family Apiaceae known by the common name corky-fruited water-dropwort. It is a plant of tall, lightly grazed or infrequently mown grassland and coastal meadows in Europe and neighbouring parts of Asia and North Africa.

<i>Oenanthe javanica</i> Species of plant

Oenanthe javanica, commonly Java waterdropwort, water celery, water dropwort, Chinese celery, Indian pennywort, minari and Japanese parsley, is a plant of the genus Oenanthe originating from East Asia. It has a widespread native distribution in temperate Asia and tropical Asia, and is also native to Queensland, Australia.

Railway Stell West is a Site of Special Scientific Interest in the Sedgefield district of County Durham, England. The site consists of a length of ditch alongside the East Coast Main Line railway, 3 km east of the town of Newton Aycliffe.

<i>Veronica anagallis-aquatica</i> Species of flowering plant in the family Plantaginaceae

Veronica anagallis-aquatica is a species of flowering plant in the family Plantaginaceae known by the common names water speedwell, blue water-speedwell,brook pimpernel.

<i>Epermenia chaerophyllella</i> Species of moth

Epermenia chaerophyllella, also known as the garden lance-wing, is a moth of the family Epermeniidae first described by Johann August Ephraim Goeze in 1783. It is found in all of Europe and Asia Minor.

Dropwort is a common name for several plants and may refer to:

<i>Oenanthe crocata</i> Species of flowering plant

Oenanthe crocata, hemlock water-dropwort is a flowering plant in the carrot family, native to Europe, North Africa and western Asia. It grows in damp grassland and wet woodland, often along river and stream banks. All parts of the plant are extremely toxic and it has been known to cause human and livestock poisoning.

<i>Oenanthe aquatica</i> Species of flowering plant

Oenanthe aquatica, fine-leaved water-dropwort, is an aquatic flowering plant in the carrot family. It is widely distributed from the Atlantic coast of Europe to central Asia.

<i>Oenanthe fistulosa</i> Species of flowering plant

Oenanthe fistulosa, tubular water-dropwort, is a flowering plant in the carrot family, native to Europe, North Africa and western parts of Asia. It is an uncommon plant of wetlands, growing around pools and along ditches, mainly in areas of high conservation value.

<i>Oenanthe fluviatilis</i> Species of flowering plant

Oenanthe fluviatilis, the river water-dropwort, is a flowering plant in the carrot family, Apiaceae, which is endemic to north-west Europe. It grows only in clear, unpolluted rivers and is declining throughout its range.

<i>Oenanthe lachenalii</i> Species of flowering plant

Oenanthe lachenalii, parsley water-dropwort, is a flowering plant in the carrot family, which is native to Europe and parts of North Africa. It is a declining plant of coastal wetlands.

<i>Oenanthe silaifolia</i> Species of flowering plant

Oenanthe silaifolia, narrow-leaved water-dropwort, is a flowering plant in the carrot family, which is native to Europe and adjacent parts of Asia and North Africa. It is an uncommon plant of water-meadows and wetlands.

References

  1. 1 2 "Oenanthe L." Plants of the World Online. Royal Botanic Gardens, Kew . Retrieved 21 August 2020.
  2. "Pacific Oenanthe, Oenanthe sarmentosa". calscape.org. Retrieved 21 August 2020.
  3. Brouillet L, Desmet P, Coursol F, Meades SJ, Favreau M, Anions M, Bélisle P, Gendreau C, Shorthouse D, et al. (2010). "Oenanthe sarmentosa C. Presl ex de Candolle". Database of Vascular Plants of Canada (VASCAN). Retrieved 21 August 2020.
  4. "Water Celery (Oenanthe javanica)". www.illinoiswildflowers.info. Retrieved 21 August 2020.
  5. "Information Sheet: 31 Hemlock Water Dropwort (Oenanthe crocata)" (PDF). Centre for Ecology and Hydrology. 2005. Archived from the original (PDF) on February 24, 2015. Retrieved September 28, 2011. Oenanthe crocata [...] is the most toxic plant in Britain to both humans and animals.
  6. Wright, John (2010), Hedgerow, Bloomsbury, p. 171, ISBN   978-1-4088-0185-7
  7. Dioscorides P. "De Materia Medica" (PDF).
  8. Pavord, Anna (2005). The Naming of Names. London: Bloomsbury. ISBN   0-7475-7952-0.
  9. "Oenanthe (Apiaceae) - Wikispecies". species.wikimedia.org. Retrieved 2023-07-30.
  10. Leighton, W.A. (1841). A Flora of Shropshire. London: John van Voorst.
  11. 1 2 Appendino, Giovanni; Pollastro, Federica; Verotta, Luisella; Ballero, Mauro; Romano, Adriana; Wyrembek, Paulina; Szczuraszek, Katarzyna; Mozrzymas, Jerzy W.; Taglialatela-Scafati, Orazio (2009-05-22). "Polyacetylenes from Sardinian Oenanthe fistulosa: A Molecular Clue to risus sardonicus". Journal of Natural Products. 72 (5): 962–965. doi:10.1021/np8007717. ISSN   0163-3864. PMC   2685611 . PMID   19245244.
  12. Wiktionary (18 August 2024). "dropwort".
  13. Tutin, T.G. (1980). Umbellifers of the British Isles. London: Botanical Society of the British Isles.
  14. News Scan Briefs: Killer Smile, Scientific American, August 2009
  15. G. Appendino; F. Pollastro; L. Verotta; M. Ballero; A. Romano; P. Wyrembek; K. Szczuraszek; J. W. Mozrzymas & O. Taglialatela-Scafati (2009). "Polyacetylenes from Sardinian Oenanthe fistulosa: A Molecular Clue to risus sardonicus". Journal of Natural Products . 72 (5): 962–965. doi:10.1021/np8007717. PMC   2685611 . PMID   19245244.
  16. Owen, James (2009-06-02). "Ancient Death-Smile Potion Decoded?". National Geographic News. Archived from the original on 2009-09-18. Retrieved 2009-10-18.
  17. The Pliocene flora of Kholmech, south-eastern Belarus and its correlation with other Pliocene floras of Europe by Felix Yu. VELICHKEVICH and Ewa ZASTAWNIAK - Acta Palaeobotanica 43(2): 137–259, 2003