fbpx
Wikipedia

Taraxacum

Taraxacum (/təˈræksəkəm/)[3] is a large genus of flowering plants in the family Asteraceae, which consists of species commonly known as dandelions. The scientific and hobby study of the genus is known as taraxacology.[4] The genus is native to Eurasia and North America, but the two most commonplace species worldwide, T. officinale (the common dandelion) and T. erythrospermum (the red-seeded dandelion), were introduced from Europe into North America, where they now propagate as wildflowers.[5] The plant thrives in temperate regions and can be found in yards, gardens, sides of roads, among crops, and in many other habitats.[6] Both species are edible in their entirety.[7] The common name dandelion (/ˈdændəl.ən/ DAN-də-ly-ən; from French dent-de-lion 'lion's tooth') is also given to specific members of the genus.

Taraxacum
Temporal range: Miocene–recent[1]
A dandelion flower head composed of numerous small florets (top). The seedhead is shown below it.
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Cichorioideae
Tribe: Cichorieae
Subtribe: Crepidinae
Genus: Taraxacum
F. H. Wigg.
Type species
Taraxacum officinale[2]
Dandelion bilobed stigma bearing pollen

Like other members of the family Asteraceae, they have very small flowers collected together into a composite flower head. Each single flower in a head is called a floret. In part due to their abundance, along with being a generalist species, dandelions are one of the most vital early spring nectar sources for a wide host of pollinators.[8] Many Taraxacum species produce seeds asexually by apomixis, where the seeds are produced without pollination, resulting in offspring that are genetically identical to the parent plant.[9]

In general, the leaves are 50–250 mm (2–10 in) long or longer, simple, lobed-to-pinnatisect, and form a basal rosette above the central taproot. The flower heads are yellow to orange coloured, and are open in the daytime, but closed at night. The heads are borne singly on a hollow stem (scape) that is usually leafless and rises 10–100 mm (383+78 in) or more[5] above the leaves. Stems and leaves exude a white, milky latex when broken. A rosette may produce several flowering stems at a time. The flower heads are 20–50 mm (34–2 in) in diameter and consist entirely of ray florets. The flower heads mature into spherical seed heads sometimes called blowballs[10] or clocks (in both British and American English)[11][12][13][14] containing many single-seeded fruits called achenes. Each achene is attached to a pappus of fine hair-like material which enables wind-aided dispersal over long distances.[citation needed]

The flower head is surrounded by bracts (sometimes mistakenly called sepals) in two series. The inner bracts are erect until the seeds mature, then flex downward to allow the seeds to disperse. The outer bracts are often reflexed downward, but remain appressed in plants of the sections Palustria and Spectabilia. Between the pappus and the achene is a stalk called a beak, which elongates as the fruit matures. The beak breaks off from the achene quite easily, separating the seed from the parachute.[citation needed]


Description edit

 
These are individual pollen grains of the dandelion - Taraxacum officinale.
 
Segment of pappus fiber showing barbs

The species of Taraxacum are tap-rooted, perennial, herbaceous plants, native to temperate areas of the Northern Hemisphere. The genus contains many species, which usually (or in the case of triploids, obligately) reproduce by apomixis, resulting in many local populations and endemism. In the British Isles alone, 234 microspecies (i.e. morphologically distinct clonal populations) are recognised in nine loosely defined sections, of which 40 are "probably endemic".[15] A number of species of Taraxacum are seed-dispersed ruderals that rapidly colonize disturbed soil, especially the common dandelion (T. officinale), which has been introduced over much of the temperate world. After flowering is finished, the dandelion flower head dries out for a day or two. The dried petals and stamens drop off, the bracts reflex (curve backwards), and the parachute ball opens into a full sphere. When development is complete, the mature seeds are attached to white, fluffy "parachutes" which easily detach from the seedhead and glide by wind, dispersing.

The seeds are able to cover large distances when dispersed due to the unique morphology of the pappus which works to create a unique type of vortex ring[16][17] that stays attached to the seed rather than being sent downstream. In addition to the creation of this vortex ring, the pappus can adjust its morphology depending on the moisture in the air. This allows the plume of seeds to close up and reduce the chance to separate from the stem, waiting for optimal conditions that will maximize dispersal and germination.[18][19]

 
The pappus of a dandelion seed, which aids in wind-driven dispersal
 
Field with flowering dandelions, Tatarstan, Russia

Similar plants edit

 
Hawksbeard flower heads and ripe seeds are sometimes confused with dandelions.
 
A Taraxacum officinale seedhead with only one seed still attached

Many similar plants in the family Asteraceae with yellow flowers are sometimes known as false dandelions. Dandelion flowers are very similar to those of cat's ears (Hypochaeris). Both plants carry similar flowers, which form into windborne seeds. However, dandelion flowers are borne singly on unbranched, hairless and leafless, hollow stems, while cat's ear flowering stems are branched, solid, and carry bracts. Both plants have a basal rosette of leaves and a central taproot. However, the leaves of dandelions are smooth or glabrous, whereas those of cat's ears are coarsely hairy.[citation needed]

Early-flowering dandelions may be distinguished from coltsfoot (Tussilago farfara) by their basal rosette of leaves, their lack of disc florets, and the absence of scales on the flowering stem.[20]

Other plants with superficially similar flowers include hawkweeds (Hieracium) and hawksbeards (Crepis). These are readily distinguished by branched flowering stems, which are usually hairy and bear leaves.[citation needed]

Classification edit

The genus is taxonomically complex due to the presence of apomixis: any morphologically distinct clonal population would deserve its own microspecies. Phylogenetic approaches are also complicated by the accelerated mutation in apomixic lines and repeated ancient hybridization events in the genus.[21]

As of 1970, the group is divided into about 34 macrospecies or sections, and about 2000 microspecies;[22] some botanists take a much narrower view and only accept a total of about 60 (macro)species.[22] By 2015, the number has been revised to include 60 sections and about 2800 microspecies. 30 of these sections are known to reproduce sexually.[21]

About 235 apomictic and polyploid microspecies have been recorded in Great Britain and Ireland alone.[23]

Botanists specialising in the genus Taraxacum are sometimes called taraxacologists,[24] for example Gunnar Marklund, Johannes Leendert van Soest or A.J. Richards.[25]

Selected species edit

 
T. albidum
 
T. californicum
 
T. japonicum
 
T. laevigatum
 
T. officinale
 
T. platycarpum

Cultivars edit

  • 'Amélioré à Coeur Plein' yields an abundant crop without taking up much ground, and tends to blanch itself naturally, due to its clumping growth habit.
  • 'Broad-leaved' - The leaves are thick and tender and easily blanched. In rich soils, they can be up to 60 cm (2') wide. Plants do not go to seed as quickly as French types.
  • 'Vert de Montmagny' is a large-leaved, vigorous grower, which matures early.[30]

History edit

 
Hand-coloured print, plate 1 of Dens Leonis in A Curious Herbal, 1737, by Elizabeth Blackwell
 
1679 hand-coloured print by Maria Sibylla Merian of a dandelion serving as a plant host to the pale tussock moth

Dandelions are thought to have evolved about 30 million years ago in Eurasia.[31] Fossil seeds of Taraxacum tanaiticum have been recorded from the Pliocene of southern Belarus.[32] Dandelions have been used by humans for food and as an herb for much of recorded history. They were well known to ancient Egyptians, Greeks and Romans, and are recorded to have been used in traditional Chinese medicine for over a thousand years. The plant was used as food and medicine by Native Americans.[33] Dandelions were probably brought to North America on the Mayflower for their supposed medicinal benefits.[34]

Etymology edit

 
Leaf resemblance to the teeth of a lion (French: dent-de-lion)

The Latin name Taraxacum originates in medieval Arabic writings on pharmacy. The scientist Al-Razi around 900 CE wrote "the tarashaquq is like chicory".[citation needed] The scientist and philosopher Ibn Sīnā around 1000 CE wrote a book chapter on Taraxacum.[citation needed] Gerard of Cremona, in translating Arabic to Latin around 1170, spelled it tarasacon.[35]

Common names edit

The English name, dandelion, is a corruption of the French dent de lion[36] meaning "lion's tooth", referring to the coarsely toothed leaves. The plant is also known as blowball, cankerwort, doon-head-clock, witch's gowan, milk witch, lion's-tooth, yellow-gowan, Irish daisy, monks-head, priest's-crown, and puff-ball;[37] other common names include faceclock, pee-a-bed, wet-a-bed,[38]swine's snout,[39] white endive, and wild endive.[40]

The English folk name "piss-a-bed" (and indeed the equivalent contemporary French pissenlit) refers to the strong diuretic effect of the plant's roots.[41] In various northeastern Italian dialects, the plant is known as pisacan ("dog pisses"), because they are found at the side of pavements.[42][unreliable source?] In Swedish, it is called maskros (worm rose) after the nymphs of small insects (thrips larvae) usually present in the flowers.[43]

Nutrition edit

 
Plate of sauteed dandelion greens, with Wehani rice

Raw dandelion greens contain high amounts of vitamins A, C, and K, and are moderate sources of calcium, potassium, iron, and manganese.[44] Raw dandelion greens are 86% water, 9% carbohydrates, 3% protein, and 1% fat.[44] A 100 gram (3+12oz) reference amount supplies 45 Calories.[44]

Phytochemicals edit

The raw flowers contain diverse phytochemicals, including polyphenols, such as flavonoids apigenin, isoquercitrin (a quercetin-like compound), and caffeic acid, as well as terpenoids, triterpenes, and sesquiterpenes.[45] The roots contain a substantial amount of the prebiotic fiber inulin. Dandelion greens contain lutein.[46]

Taraxalisin, a serine proteinase, is found in the latex of dandelion roots.[47][48] Maximal activity of the proteinase in the roots is attained in April, at the beginning of plant development after the winter period.[48] Each dandelion seed has a mass(weight) of 500 micrograms or 0.0005g (1/125 of a grain).[citation needed]

Properties edit

Edibility edit

 
Bunches of organic dandelion greens for sale at Whole Foods

The entire plant, including the leaves, stems, flowers, and roots, is edible and nutritious, with nutrients such as vitamins A and K as well as calcium and iron. [49] Dandelions are found on six continents and have been gathered for food since prehistory, but the varieties commercially cultivated for consumption are mainly native to Eurasia and North America. A perennial plant, its leaves grow back if the taproot is left intact. To make leaves more palatable, they are often blanched to remove bitterness,[50] or sauteed in the same way as spinach.[51] Dandelion greens have been a part of traditional Kashmiri cuisine, Spanish cuisine, Italian cuisine, Albanian cuisine, Slovenian, Sephardic Jewish, Chinese, Greek cuisine (χόρτα) and Korean cuisines. In Crete, the leaves of a variety called 'Mari' (Μαρί), 'Mariaki' (Μαριάκι), or 'Koproradiko' (Κοπροράδικο) are eaten by locals, either raw or boiled, in salads. T. megalorhizon, a species endemic to Crete, is eaten in the same way; it is found only at high altitudes (1,000–1,600 metres (3,300–5,200 ft)) and in fallow sites, and is called pentaramia (πενταράμια) or agrioradiko (αγριοράδικο).[52]

The flower petals, along with other ingredients, usually including citrus, are used to make dandelion wine. Its ground, roasted roots can be used as a caffeine-free coffee alternative.[53] Dandelion was also traditionally used to make the traditional British soft drink dandelion and burdock, and is one of the ingredients of root beer. Dandelions were once considered delicacies by the Victorian gentry, who used them mostly in salads and sandwiches.[citation needed]

Dye edit

The yellow flowers can be dried and ground into a yellow-pigmented powder and used as a dye.[54]

Allergies edit

Dandelion pollen may cause allergic reactions when eaten, or adverse skin reactions in sensitive individuals. Contact dermatitis after handling has also been reported, probably from the latex in the stems and leaves.[55][unreliable source?][medical citation needed][56]

Herbalism edit

Dandelion has been used in traditional medicine in Europe, North America, and China.[45] It's possible that Dandelion has physiological effects in Type 2 Diabetes [57][58]

Food for wildlife edit

Dandelions do not depend on wildlife for distribution or pollination; however much of wildlife benefits from the abundance of the plant. Rabbits, wild turkeys, white-tailed deer, eastern chipmunks, bobwhite quail, and many species of birds will consume the seeds and foliage. Additionally, many insects will collect nectar from the flower, especially in early spring when there are very few other flowers in bloom.[59]

 
Dandelion specimen 85 cm (33 in) in height

Seeds edit

Taraxacum seeds are an important food source for certain birds (linnets, Linaria spp.).[60]

Nectar edit

Szabo studied nectar secretion in a dandelion patch over two years (59.2 and 8.9 flowers per square metre (5.50 and 0.83/sq ft) in 1981 and 1982). He measured average nectar volume at 7.4 μl/flower in 1981 and 3.7 μl/flower in 1982. The flowers tended to open in the morning and close in the afternoon with the concentrations significantly higher on the second day.[61][62]

Dandelions are also important plants for Northern Hemisphere bees, providing an important source of nectar and pollen early in the season.[63] They are also used as a source of nectar by the pearl-bordered fritillary (Boloria euphrosyne), one of the earliest emerging butterflies in the spring.[citation needed]

Leaves edit

Dandelions are used as food plants by the larvae of some species of Lepidoptera (butterflies and moths).

Invasive species edit

 
Dandelion roots

Dandelions can cause significant economic damage as an invasive species and infestation of other crops worldwide;[64] in some jurisdictions, the species T. officinale is listed as a noxious weed.[64][65] It can also be considered invasive in protected areas such as national parks. For example, Denali National Park and Preserve in Alaska lists Taraxacum officinale as the most common invasive species in the park [66] and hosts an annual "Dandelion Demolition" event where volunteers are trained to remove the plant from the park's roadsides.[67]

Benefits to gardeners edit

With a wide range of uses, the dandelion is cultivated in small gardens to massive farms. It is kept as a companion plant; its taproot brings up nutrients for shallow-rooting plants. It is also known to attract pollinating insects and release ethylene gas, which helps fruit to ripen.[68]

Cultural importance edit

It has been a Western tradition for someone to blow out a dandelion seedhead and think of a wish they want to come true.[69]

Five dandelion flowers are the emblem of White Sulphur Springs, West Virginia.[70] The citizens celebrate spring with an annual Dandelion Festival.[citation needed]

The dandelion is the official flower of the University of Rochester in New York State, and "Dandelion Yellow" is one of the school's official colors. "The Dandelion Yellow" is an official University of Rochester song.[71]

Inspiration for engineering edit

The ability of dandelion seeds to travel as far as a kilometer in dry, windy and warm conditions, has been an inspiration for designing light-weight passive drones.

In 2018, researchers discovered that dandelion seeds have a separated vortex ring.[72] This work provided evidence that dandelion seeds have fluid behavior around fluid-immersed bodies that may help understand locomotion, weight reduction and particle retention in biological and man-made structures.

In 2022, researchers at the University of Washington demonstrated battery-free wireless sensors and computers that mimic dandelion seeds and can float in the wind and disperse across a large area.[73]

As a source of natural rubber edit

Dandelions secrete latex when the tissues are cut or broken, yet in the wild type, the latex content is low and varies greatly. Taraxacum kok-saghyz, the Russian dandelion, is a species that produced industrially useful amounts during WW2. Using modern cultivation methods and optimization techniques, scientists in the Fraunhofer Institute for Molecular Biology and Applied Ecology (IME) in Germany developed a cultivar of the Russian dandelion that is suitable for current commercial production of natural rubber. The latex produced exhibits the same quality as the natural rubber from rubber trees.[74] In collaboration with Continental AG, IME is building a pilot facility. As of May 2014, the first prototype test tires made with blends from dandelion-rubber are scheduled for testing on public roads over the next few years.[75] In December 2017, Linglong Group Co. Ltd., a Chinese company, invested $450 million into making commercially viable rubber from dandelions.[76]

References edit

  1. ^ Rubar Hussein M. Salih; Ľuboš Majeský; Trude Schwarzacher; R. Gornall; Pat Heslop-Harrison (9 February 2017). "Complete chloroplast genomes from apomictic Taraxacum (Asteraceae): Identity and variation between three microspecies". PLOS ONE. 12 (2). e0168008. Bibcode:2017PLoSO..1268008M. doi:10.1371/journal.pone.0168008. PMC 5300115. PMID 28182646.
  2. ^ Adrian John Richards (1985). "Sectional nomenclature in Taraxacum (Asteraceae)". Taxon. 34 (4): 633–644. doi:10.2307/1222201. JSTOR 1222201.
  3. ^ "Taraxacum". Merriam-Webster.com Dictionary.
  4. ^ Greenwood, Barbara (2015). "Don't Dismiss the Dandelion".
  5. ^ a b Brouillet, Luc. "Taraxacum F. H. Wiggers, Prim. Fl. Holsat. 56. 1780". Flora of North America.
  6. ^ Boguś, Mieczysława Irena; Wrońska, Anna Katarzyna; Kaczmarek, Agata; Drozdowski, Mikołaj; Laskowski, Zdzisław; Myczka, Anna; Cybulska, Aleksandra; Gołębiowski, Marek; Chwir-Gołębiowska, Adrianna; Siecińska, Lena; Mokijewska, Ewelina (20 January 2023). "A comprehensive analysis of chemical and biological pollutants (natural and anthropogenic origin) of soil and dandelion (Taraxacum officinale) samples". PLOS ONE. 18 (1): e0280810. Bibcode:2023PLoSO..1880810B. doi:10.1371/journal.pone.0280810. ISSN 1932-6203. PMC 9858760. PMID 36662824.
  7. ^ "Wild About Dandelions". Mother Earth News. 1 April 2008.
  8. ^ "Let dandelions grow. Bees, beetles and birds need them". The Guardian. 12 May 2015.
  9. ^ Doll, J. & Trower, T. . WeedScience. University of Wisconsin. Archived from the original on 22 October 2008.
  10. ^ "blowball". McGraw-Hill Dictionary of Scientific & Technical Terms (6th ed.). McGraw-Hill Companies. 2003. Retrieved 26 January 2013.
  11. ^ "blowball". CollinsDictionary.com. HarperCollins.
  12. ^ "blowball". InfoPlease Dictionary.
  13. ^ "dandelion clock". Longman English Dictionary Online. Pearson. Retrieved 2 June 2019.
  14. ^ "clock". The American Heritage Dictionary of the English Language (5th ed.). HarperCollins.
  15. ^ Stace, C. A. (2010). New Flora of the British Isles (Third ed.). Cambridge, U.K.: Cambridge University Press. p. 712. ISBN 9780521707725.
  16. ^ Cummins, Cathal; Seale, Madeleine; Macente, Alice; Certini, Daniele; Mastropaolo, Enrico; Viola, Ignazio Maria; Nakayama, Naomi (2018). "A separated vortex ring underlies the flight of the dandelion" (PDF). Nature. 562 (7727): 414–418. Bibcode:2018Natur.562..414C. doi:10.1038/s41586-018-0604-2. ISSN 0028-0836. PMID 30333579. S2CID 52988814.
  17. ^ Ledda, P. G.; Siconolfi, L.; Viola, F.; Camarri, S.; Gallaire, F. (2 July 2019). "Flow dynamics of a dandelion pappus: A linear stability approach". Physical Review Fluids. 4 (7): 071901. Bibcode:2019PhRvF...4g1901L. doi:10.1103/physrevfluids.4.071901. hdl:11568/998044. ISSN 2469-990X. S2CID 198429309.
  18. ^ Seale, Madeleine; Zhdanov, Oleksandr; Cummins, Cathal; Kroll, Erika; Blatt, Michael R; Zare-Behtash, Hossein; Busse, Angela; Mastropaolo, Enrico; Viola, Ignazio Maria (7 February 2019). "Moisture-dependent morphing tunes the dispersal of dandelion diaspores". doi:10.1101/542696. hdl:10044/1/102018. {{cite journal}}: Cite journal requires |journal= (help)
  19. ^ Loebach, Christopher A. (2015). Investigating seed dispersal distances and long distance dispersal mechanisms of the invasive plant, Alliaria Petiolata. Illinois State University. ISBN 9781321782141. OCLC 988948576.
  20. ^ Blamey, M.; Fitter, R.; Fitter, A (2003). Wild flowers of Britain and Ireland: The Complete Guide to the British and Irish Flora. London: A & C Black. p. 274. ISBN 978-1408179505.
  21. ^ a b Kirschner, Jan; Záveská Drábková, Lenka; Štěpánek, Jan; Uhlemann, Ingo (April 2015). "Towards a better understanding of the Taraxacum evolution (Compositae–Cichorieae) on the basis of nrDNA of sexually reproducing species". Plant Systematics and Evolution. 301 (4): 1135–1156. doi:10.1007/s00606-014-1139-0. S2CID 17903814.
  22. ^ a b A. J. Richards (1970). "Eutriploid facultative agamospermy in Taraxacum". New Phytologist. 69 (3): 761–774. doi:10.1111/j.1469-8137.1970.tb02461.x. JSTOR 2430530.
  23. ^ Richards, A.J. (1997). Dandelions of Great Britain and Ireland (Handbooks for Field Identification). Botanical Society of the British Isles Publications. p. 330. ISBN 978-0-901158-25-3.
  24. ^ "Overlooked dandelion diversity in BC (and everywhere in North America?)". iNaturalist Community Forum. 17 January 2020. Retrieved 31 October 2023.
  25. ^ Dudman, A. A.; Richards, A. J.; Stewart, Olga (2000). Dandelions of Great Britain and Ireland. B.S.B.I. handbook (Reprinted with minor alterations 2000 ed.). London: Botanical Society of the British Isles. ISBN 978-0-901158-25-3.
  26. ^ a b Nowicki, Marcin; Zhao, Yichen; Boggess, Sarah L.; Fluess, Helge; Payá-Milans, Miriam; Staton, Margaret E.; Houston, Logan C.; Hadziabdic, Denita; Trigiano, Robert N. (13 February 2019). "Taraxacum kok-saghyz (rubber dandelion) genomic microsatellite loci reveal modest genetic diversity and cross-amplify broadly to related species". Scientific Reports. 9 (1): 1915. Bibcode:2019NatSR...9.1915N. doi:10.1038/s41598-019-38532-8. ISSN 2045-2322. PMC 6374447. PMID 30760810.
  27. ^ . Archived from the original on 8 July 2014. Retrieved 29 August 2013.
  28. ^ "Flora of North America". Efloras.org. Retrieved 29 August 2012.
  29. ^ "Plants for a Future Search Error". www.ibiblio.org. Retrieved 17 April 2017.
  30. ^ "Dandelion". Fondation Louis Bonduelle. 5 October 2016.
  31. ^ . Gardening.wsu.edu. 4 May 2003. Archived from the original on 26 June 2012. Retrieved 29 August 2012.
  32. ^ The Pliocene flora of Kholmech, southeastern Belarus and its correlation with other Pliocene floras of Europe by Felix Yu. VELICHKEVICH and Ewa ZASTAWNIAK - Acta Palaeobot. 43(2): 137–259, 2003
  33. ^ Clarke, Charlotte Bringle (1977). Edible and useful plants of California. Berkeley: University of California Press. p. 191. ISBN 978-0-520-03261-3.
  34. ^ . Maine Organic Farmers and Gardeners Association. Archived from the original on 20 February 2017. Retrieved 17 April 2017.
  35. ^ Reported in An Etymological Dictionary of the English Language, by Walter W. Skeat (1888) (Downloadable at Archive.org). In An Etymology Dictionary of Modern English by Ernest Weekley (1921) it is reported that Arabic طرشقون‎ tarashaqun is derivable in turn from Persian تلخ چکوک talkh chakok, bitter herb (Downloadable at Archive.org).
  36. ^ S. Potter & L. Sargent (1973) Pedigree: essays on the etymology of words from nature. Collins New Naturalist series Volume 56
  37. ^ Britton, N. F.; Brown, Addison (1970). An illustrated flora of the northern United States and Canada: from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. New York: Dover Publications. p. 315. ISBN 978-0-486-22644-6.
  38. ^ "Common Dandelion_Family: Asteraceae" (PDF).
  39. ^ Loewer, Peter (2001). Solving weed problems. Guilford, Conn.: Lyons Press. p. 210. ISBN 978-1-58574-274-5. Swine's Snout.
  40. ^ "Dandelion clock". TheFreeDictionary.com.
  41. ^ Taylor, Joseph (1819). Antiquitates curiosae: the etymology of many remarkable old sayings, proverbs and singular customs explained by Joseph Taylor (2nd ed.). T&J Allman. p. 97.
  42. ^ Anon. (PDF). Frapez.com. Frapez soothie spa. Archived from the original (PDF) on 11 July 2011. Retrieved 30 May 2010.
  43. ^ "Den virtuella floran: Taraxacum F. H. Wigg. - Maskrosor" (in Swedish). Linnaeus.nrm.se. Retrieved 3 July 2010.
  44. ^ a b c "Dandelion greens, raw". Nutritiondata.com, Conde Nast Inc. Retrieved 7 March 2011.
  45. ^ a b Katrin Schütz, Reinhold Carle & Andreas Schieber (2006). "Taraxacum—a review on its phytochemical and pharmacological profile". Journal of Ethnopharmacology. 107 (3): 313–323. doi:10.1016/j.jep.2006.07.021. PMID 16950583.
  46. ^ "Carotenoids". Micronutrient Information Center, Linus Pauling Institute, Oregon State University. 1 July 2016. Retrieved 27 June 2019.
  47. ^ Bogacheva, A. M.; Rudenskaya, G. N.; Preusser, A; Tchikileva, I. O.; Dunaevsky, Y. E.; Golovkin, B. N.; Stepanov, V. M. (1999). "A new subtilisin-like proteinase from roots of the dandelion Taraxacum officinale Webb S. L". Biochemistry. Biokhimiia. 64 (9): 1030–7. PMID 10521720.
  48. ^ a b Rudenskaya, G. N.; Bogacheva, A. M.; Preusser, A.; Kuznetsova, A. V.; Dunaevsky YaE, null; Golovkin, B. N.; Stepanov, V. M. (23 October 1998). "Taraxalisin -- a serine proteinase from dandelion Taraxacum officinale Webb s.l". FEBS Letters. 437 (3): 237–240. doi:10.1016/s0014-5793(98)01243-5. ISSN 0014-5793. PMID 9824298. S2CID 43872064.
  49. ^ Osborne, Tegan (11 May 2016). "Edible weeds that are safe to eat and how you can use them". ABC News (Australia). Retrieved 24 May 2021.
  50. ^ McGee, Harold (2004). "A survey of common vegetables". On Food and Cooking: the science and lore of the kitchen. New York: Scribner. p. 320. ISBN 978-0-684-80001-1.
  51. ^ sautéed Dandelion Greens, ItalianFoodForever.com
  52. ^ Kleonikos G. Stavridakis; Κλεόνικος Γ. Σταυριδάκης (2006). Wild edible plants of Crete - Η Άγρια βρώσιμη χλωρίδα της Κρήτης. Rethymnon Crete. ISBN 978-960-631-179-6.
  53. ^ Castronovo Fusco, MA (15 April 2008). "Dandelion as underrated as underfoot". New Jersey On-Line. Retrieved 7 March 2011.
  54. ^ Dyer, Anne. (1981). Dyes from natural sources. Bell & Hyman. ISBN 0713519371. OCLC 219915765.
  55. ^ Bill Church (2006). Medicinal Plants, Trees, & Shrubs of Appalachia – A Field Guide. Lulu.com. p. 28. ISBN 978-1-4116-4486-1.
  56. ^ Lovell CR, Rowan M. Dandelion dermatitis. Contact Dermatitis. 1991 Sep;25(3):185-8. doi: 10.1111/j.1600-0536.1991.tb01826.x. PMID: 1838315.
  57. ^ Wirngo FE, Lambert MN, Jeppesen PB. The Physiological Effects of Dandelion (Taraxacum Officinale) in Type 2 Diabetes. Rev Diabet Stud. 2016 Summer-Fall;13(2-3):113-131. doi: 10.1900/RDS.2016.13.113. Epub 2016 Aug 10. PMID: 28012278; PMCID: PMC5553762.
  58. ^ Mohanta YK, Mishra AK, Nongbet A, Chakrabartty I, Mahanta S, Sarma B, Panda J, Panda SK. Potential use of the Asteraceae family as a cure for diabetes: A review of ethnopharmacology to modern day drug and nutraceuticals developments. Front Pharmacol. 2023 Aug 3;14:1153600. doi: 10.3389/fphar.2023.1153600. PMID: 37608892; PMCID: PMC10441548.
  59. ^ "Out My Backdoor: In Defense of Dandelions | Department Of Natural Resources Division". georgiawildlife.com. Retrieved 16 October 2023.
  60. ^ D. L. Buckingham & W. J. Peach (2005). "The influence of livestock management on habitat quality for farmland birds". Animal Science. 81 (2): 199–203. doi:10.1079/ASC50700199.
  61. ^ Stewart-Wade, S. M.; Neumann, S.; Collins, L. L.; Boland, G. J. (1 October 2002). "The biology of Canadian weeds. 117. Taraxacum officinale G. H. Weber ex Wiggers". Canadian Journal of Plant Science. Canadian Science Publishing. 82 (4): 825–853. doi:10.4141/p01-010. ISSN 0008-4220. S2CID 85676502.
  62. ^ Tibor I. Szabo, Nectar Secretion in Dandelion, Journal of Apicultural Research, Volume 23, 1984 - Issue 4
  63. ^ Pellett, Frank Chapman (1920). American Honey Plants; Together With Those Which Are of Special Value to the Beekeeper as Sources of Pollen. American Bee Journal Publication. p. 178. ISBN 978-1-152-86271-5.
  64. ^ a b Stewart-Wade, S. M.; Newmann, S.; Collins, L. L.; Boland, G. J. (2002). "The biology of Canadian weeds. 117. Taraxacum officinale G.H. Weber ex Wiggers". Canadian Journal of Plant Science. 82 (4): 825–853. doi:10.4141/P01-010.
  65. ^ J., Richardson (1 January 1985). "In praise of the archenemy". Audubon: 37–39. ISSN 0097-7136.
  66. ^ Non native species National Park Service
  67. ^ Love, Colleen Coulon Denali’s Dandelion Demolition returns after 2020 hiatus KTNA, June 17, 2021
  68. ^ Anon. "Companion Planting for Vegetables & Plants". Country living and farm lifestyles. countryfarm-lifestyles.com. Retrieved 7 March 2011.
  69. ^ Thong, Roseanne (September 2008). Wish: wishing traditions around the world. Chronicle Books. ISBN 9780811857161 – via Google Books.
  70. ^ . Wssmainstreet.org. Archived from the original on 4 June 2010. Retrieved 3 July 2010.
  71. ^ "Songs of the University of Rochester". Lib.rochester.edu. 14 January 2010. Retrieved 3 July 2010.
  72. ^ Cummins, Cathal; Seale, Madeleine; Macente, Alice; Certini, Daniele; Mastropaolo, Enrico; Viola, Ignazio Maria; Nakayama, Naomi (October 2018). "A separated vortex ring underlies the flight of the dandelion". Nature. 562 (7727): 414–418. Bibcode:2018Natur.562..414C. doi:10.1038/s41586-018-0604-2. hdl:10044/1/76641. ISSN 0028-0836. PMID 30333579. S2CID 52988814.
  73. ^ Iyer, Vikram; Gaensbauer, Hans; Daniel, Thomas L.; Gollakota, Shyamnath (17 March 2022). "Wind dispersal of battery-free wireless devices". Nature. 603 (7901): 427–433. Bibcode:2022Natur.603..427I. doi:10.1038/s41586-021-04363-9. ISSN 0028-0836. PMID 35296847. S2CID 247499662.
  74. ^ "Making Rubber from Dandelion Juice". Science Daily. 28 October 2013. Retrieved 22 November 2013.
  75. ^ "Fraunhofer and Continental come together when the dandelion rubber meets the road". 14 October 2013. Retrieved 14 December 2016.
  76. ^ "Linglong to fund research into dandelion rubber | Rubber and Plastics News". 20 December 2017.

External links edit

  •   Media related to Taraxacum at Wikimedia Commons

taraxacum, dandelion, redirects, here, refer, species, genus, specifically, officinale, similar, plants, false, dandelion, other, uses, dandelion, disambiguation, large, genus, flowering, plants, family, asteraceae, which, consists, species, commonly, known, d. Dandelion redirects here It may refer to any species of the genus Taraxacum or specifically to Taraxacum officinale For similar plants see False dandelion For other uses see Dandelion disambiguation Taraxacum t e ˈ r ae k s e k e m 3 is a large genus of flowering plants in the family Asteraceae which consists of species commonly known as dandelions The scientific and hobby study of the genus is known as taraxacology 4 The genus is native to Eurasia and North America but the two most commonplace species worldwide T officinale the common dandelion and T erythrospermum the red seeded dandelion were introduced from Europe into North America where they now propagate as wildflowers 5 The plant thrives in temperate regions and can be found in yards gardens sides of roads among crops and in many other habitats 6 Both species are edible in their entirety 7 The common name dandelion ˈ d ae n d e l aɪ en DAN de ly en from French dent de lion lion s tooth is also given to specific members of the genus TaraxacumTemporal range Miocene recent 1 A dandelion flower head composed of numerous small florets top The seedhead is shown below it Scientific classificationKingdom PlantaeClade TracheophytesClade AngiospermsClade EudicotsClade AsteridsOrder AsteralesFamily AsteraceaeSubfamily CichorioideaeTribe CichorieaeSubtribe CrepidinaeGenus TaraxacumF H Wigg Type speciesTaraxacum officinale 2 F H Wigg Dandelion bilobed stigma bearing pollenLike other members of the family Asteraceae they have very small flowers collected together into a composite flower head Each single flower in a head is called a floret In part due to their abundance along with being a generalist species dandelions are one of the most vital early spring nectar sources for a wide host of pollinators 8 Many Taraxacum species produce seeds asexually by apomixis where the seeds are produced without pollination resulting in offspring that are genetically identical to the parent plant 9 In general the leaves are 50 250 mm 2 10 in long or longer simple lobed to pinnatisect and form a basal rosette above the central taproot The flower heads are yellow to orange coloured and are open in the daytime but closed at night The heads are borne singly on a hollow stem scape that is usually leafless and rises 10 100 mm 3 8 3 7 8 in or more 5 above the leaves Stems and leaves exude a white milky latex when broken A rosette may produce several flowering stems at a time The flower heads are 20 50 mm 3 4 2 in in diameter and consist entirely of ray florets The flower heads mature into spherical seed heads sometimes called blowballs 10 or clocks in both British and American English 11 12 13 14 containing many single seeded fruits called achenes Each achene is attached to a pappus of fine hair like material which enables wind aided dispersal over long distances citation needed The flower head is surrounded by bracts sometimes mistakenly called sepals in two series The inner bracts are erect until the seeds mature then flex downward to allow the seeds to disperse The outer bracts are often reflexed downward but remain appressed in plants of the sections Palustria and Spectabilia Between the pappus and the achene is a stalk called a beak which elongates as the fruit matures The beak breaks off from the achene quite easily separating the seed from the parachute citation needed Contents 1 Description 2 Similar plants 3 Classification 3 1 Selected species 3 2 Cultivars 4 History 5 Etymology 5 1 Common names 6 Nutrition 7 Phytochemicals 8 Properties 8 1 Edibility 8 2 Dye 8 3 Allergies 8 4 Herbalism 8 5 Food for wildlife 8 5 1 Seeds 8 5 2 Nectar 8 5 3 Leaves 8 6 Invasive species 8 7 Benefits to gardeners 8 8 Cultural importance 8 9 Inspiration for engineering 8 10 As a source of natural rubber 9 References 10 External linksDescription edit nbsp These are individual pollen grains of the dandelion Taraxacum officinale nbsp Segment of pappus fiber showing barbsThe species of Taraxacum are tap rooted perennial herbaceous plants native to temperate areas of the Northern Hemisphere The genus contains many species which usually or in the case of triploids obligately reproduce by apomixis resulting in many local populations and endemism In the British Isles alone 234 microspecies i e morphologically distinct clonal populations are recognised in nine loosely defined sections of which 40 are probably endemic 15 A number of species of Taraxacum are seed dispersed ruderals that rapidly colonize disturbed soil especially the common dandelion T officinale which has been introduced over much of the temperate world After flowering is finished the dandelion flower head dries out for a day or two The dried petals and stamens drop off the bracts reflex curve backwards and the parachute ball opens into a full sphere When development is complete the mature seeds are attached to white fluffy parachutes which easily detach from the seedhead and glide by wind dispersing The seeds are able to cover large distances when dispersed due to the unique morphology of the pappus which works to create a unique type of vortex ring 16 17 that stays attached to the seed rather than being sent downstream In addition to the creation of this vortex ring the pappus can adjust its morphology depending on the moisture in the air This allows the plume of seeds to close up and reduce the chance to separate from the stem waiting for optimal conditions that will maximize dispersal and germination 18 19 nbsp The pappus of a dandelion seed which aids in wind driven dispersal nbsp Field with flowering dandelions Tatarstan RussiaSimilar plants edit nbsp Hawksbeard flower heads and ripe seeds are sometimes confused with dandelions nbsp A Taraxacum officinale seedhead with only one seed still attachedMany similar plants in the family Asteraceae with yellow flowers are sometimes known as false dandelions Dandelion flowers are very similar to those of cat s ears Hypochaeris Both plants carry similar flowers which form into windborne seeds However dandelion flowers are borne singly on unbranched hairless and leafless hollow stems while cat s ear flowering stems are branched solid and carry bracts Both plants have a basal rosette of leaves and a central taproot However the leaves of dandelions are smooth or glabrous whereas those of cat s ears are coarsely hairy citation needed Early flowering dandelions may be distinguished from coltsfoot Tussilago farfara by their basal rosette of leaves their lack of disc florets and the absence of scales on the flowering stem 20 Other plants with superficially similar flowers include hawkweeds Hieracium and hawksbeards Crepis These are readily distinguished by branched flowering stems which are usually hairy and bear leaves citation needed Classification editThe genus is taxonomically complex due to the presence of apomixis any morphologically distinct clonal population would deserve its own microspecies Phylogenetic approaches are also complicated by the accelerated mutation in apomixic lines and repeated ancient hybridization events in the genus 21 As of 1970 the group is divided into about 34 macrospecies or sections and about 2000 microspecies 22 some botanists take a much narrower view and only accept a total of about 60 macro species 22 By 2015 the number has been revised to include 60 sections and about 2800 microspecies 30 of these sections are known to reproduce sexually 21 About 235 apomictic and polyploid microspecies have been recorded in Great Britain and Ireland alone 23 Botanists specialising in the genus Taraxacum are sometimes called taraxacologists 24 for example Gunnar Marklund Johannes Leendert van Soest or A J Richards 25 Selected species edit Taraxacum albidum the white flowered Japanese dandelion a hybrid between T coreanum and T japonicum Taraxacum algarbiense Taraxacum aphrogenes the Paphos dandelion Taraxacum arcticum Taraxacum balticum Taraxacum brachyceras Taraxacum brevicorniculatum frequently misidentified as T kok saghyz and a poor rubber producer 26 Taraxacum californicum the California dandelion an endangered species Taraxacum centrasiaticum the Xinjiang dandelion Taraxacum ceratophorum the horned dandelion considered by some sources to be a North American subspecies of T officinale T officinale subsp ceratophorum 27 Taraxacum coreanum Taraxacum desertorum Taraxacum erythrospermum the red seeded dandelion often considered a variety of T laevigatum i e T laevigatum var erythrospermum 28 Taraxacum farinosum the Turkish dandelion Taraxacum holmboei the Troodos dandelion Taraxacum hybernum Taraxacum japonicum the Japanese dandelion no ring of smallish downward turned leaves under the flower head Taraxacum kok saghyz the Kazakh dandelion which produces rubber 29 26 Taraxacum laevigatum the rock dandelion achenes reddish brown and leaves deeply cut throughout the length inner bracts tips are hooded Taraxacum lissocarpum Taraxacum minimum Taraxacum mirabile Taraxacum officinale syn T officinale subsp vulgare the common dandelion found in many forms Taraxacum pankhurstianum the St Kilda dandelion Taraxacum platycarpum the Korean dandelion Taraxacum pseudoroseum Taraxacum suecicum nbsp T albidum nbsp T californicum nbsp T japonicum nbsp T laevigatum nbsp T officinale nbsp T platycarpumCultivars edit Ameliore a Coeur Plein yields an abundant crop without taking up much ground and tends to blanch itself naturally due to its clumping growth habit Broad leaved The leaves are thick and tender and easily blanched In rich soils they can be up to 60 cm 2 wide Plants do not go to seed as quickly as French types Vert de Montmagny is a large leaved vigorous grower which matures early 30 History edit nbsp Hand coloured print plate 1 of Dens Leonis in A Curious Herbal 1737 by Elizabeth Blackwell nbsp 1679 hand coloured print by Maria Sibylla Merian of a dandelion serving as a plant host to the pale tussock mothDandelions are thought to have evolved about 30 million years ago in Eurasia 31 Fossil seeds of Taraxacum tanaiticum have been recorded from the Pliocene of southern Belarus 32 Dandelions have been used by humans for food and as an herb for much of recorded history They were well known to ancient Egyptians Greeks and Romans and are recorded to have been used in traditional Chinese medicine for over a thousand years The plant was used as food and medicine by Native Americans 33 Dandelions were probably brought to North America on the Mayflower for their supposed medicinal benefits 34 Etymology edit nbsp Leaf resemblance to the teeth of a lion French dent de lion The Latin name Taraxacum originates in medieval Arabic writings on pharmacy The scientist Al Razi around 900 CE wrote the tarashaquq is like chicory citation needed The scientist and philosopher Ibn Sina around 1000 CE wrote a book chapter on Taraxacum citation needed Gerard of Cremona in translating Arabic to Latin around 1170 spelled it tarasacon 35 Common names edit The English name dandelion is a corruption of the French dent de lion 36 meaning lion s tooth referring to the coarsely toothed leaves The plant is also known as blowball cankerwort doon head clock witch s gowan milk witch lion s tooth yellow gowan Irish daisy monks head priest s crown and puff ball 37 other common names include faceclock pee a bed wet a bed 38 swine s snout 39 white endive and wild endive 40 The English folk name piss a bed and indeed the equivalent contemporary French pissenlit refers to the strong diuretic effect of the plant s roots 41 In various northeastern Italian dialects the plant is known as pisacan dog pisses because they are found at the side of pavements 42 unreliable source In Swedish it is called maskros worm rose after the nymphs of small insects thrips larvae usually present in the flowers 43 Nutrition edit nbsp Plate of sauteed dandelion greens with Wehani riceRaw dandelion greens contain high amounts of vitamins A C and K and are moderate sources of calcium potassium iron and manganese 44 Raw dandelion greens are 86 water 9 carbohydrates 3 protein and 1 fat 44 A 100 gram 3 1 2 oz reference amount supplies 45 Calories 44 Phytochemicals editThe raw flowers contain diverse phytochemicals including polyphenols such as flavonoids apigenin isoquercitrin a quercetin like compound and caffeic acid as well as terpenoids triterpenes and sesquiterpenes 45 The roots contain a substantial amount of the prebiotic fiber inulin Dandelion greens contain lutein 46 Taraxalisin a serine proteinase is found in the latex of dandelion roots 47 48 Maximal activity of the proteinase in the roots is attained in April at the beginning of plant development after the winter period 48 Each dandelion seed has a mass weight of 500 micrograms or 0 0005g 1 125 of a grain citation needed Properties editEdibility edit nbsp Bunches of organic dandelion greens for sale at Whole FoodsThe entire plant including the leaves stems flowers and roots is edible and nutritious with nutrients such as vitamins A and K as well as calcium and iron 49 Dandelions are found on six continents and have been gathered for food since prehistory but the varieties commercially cultivated for consumption are mainly native to Eurasia and North America A perennial plant its leaves grow back if the taproot is left intact To make leaves more palatable they are often blanched to remove bitterness 50 or sauteed in the same way as spinach 51 Dandelion greens have been a part of traditional Kashmiri cuisine Spanish cuisine Italian cuisine Albanian cuisine Slovenian Sephardic Jewish Chinese Greek cuisine xorta and Korean cuisines In Crete the leaves of a variety called Mari Mari Mariaki Mariaki or Koproradiko Koproradiko are eaten by locals either raw or boiled in salads T megalorhizon a species endemic to Crete is eaten in the same way it is found only at high altitudes 1 000 1 600 metres 3 300 5 200 ft and in fallow sites and is called pentaramia pentaramia or agrioradiko agrioradiko 52 The flower petals along with other ingredients usually including citrus are used to make dandelion wine Its ground roasted roots can be used as a caffeine free coffee alternative 53 Dandelion was also traditionally used to make the traditional British soft drink dandelion and burdock and is one of the ingredients of root beer Dandelions were once considered delicacies by the Victorian gentry who used them mostly in salads and sandwiches citation needed Dye edit The yellow flowers can be dried and ground into a yellow pigmented powder and used as a dye 54 Allergies edit Dandelion pollen may cause allergic reactions when eaten or adverse skin reactions in sensitive individuals Contact dermatitis after handling has also been reported probably from the latex in the stems and leaves 55 unreliable source medical citation needed 56 Herbalism edit Dandelion has been used in traditional medicine in Europe North America and China 45 It s possible that Dandelion has physiological effects in Type 2 Diabetes 57 58 Food for wildlife editDandelions do not depend on wildlife for distribution or pollination however much of wildlife benefits from the abundance of the plant Rabbits wild turkeys white tailed deer eastern chipmunks bobwhite quail and many species of birds will consume the seeds and foliage Additionally many insects will collect nectar from the flower especially in early spring when there are very few other flowers in bloom 59 nbsp Dandelion specimen 85 cm 33 in in heightSeeds edit Taraxacum seeds are an important food source for certain birds linnets Linaria spp 60 Nectar edit Main article Nectar Szabo studied nectar secretion in a dandelion patch over two years 59 2 and 8 9 flowers per square metre 5 50 and 0 83 sq ft in 1981 and 1982 He measured average nectar volume at 7 4 ml flower in 1981 and 3 7 ml flower in 1982 The flowers tended to open in the morning and close in the afternoon with the concentrations significantly higher on the second day 61 62 Dandelions are also important plants for Northern Hemisphere bees providing an important source of nectar and pollen early in the season 63 They are also used as a source of nectar by the pearl bordered fritillary Boloria euphrosyne one of the earliest emerging butterflies in the spring citation needed Leaves edit Dandelions are used as food plants by the larvae of some species of Lepidoptera butterflies and moths Invasive species edit nbsp Dandelion rootsDandelions can cause significant economic damage as an invasive species and infestation of other crops worldwide 64 in some jurisdictions the species T officinale is listed as a noxious weed 64 65 It can also be considered invasive in protected areas such as national parks For example Denali National Park and Preserve in Alaska lists Taraxacum officinale as the most common invasive species in the park 66 and hosts an annual Dandelion Demolition event where volunteers are trained to remove the plant from the park s roadsides 67 Benefits to gardeners edit Main article Beneficial weed With a wide range of uses the dandelion is cultivated in small gardens to massive farms It is kept as a companion plant its taproot brings up nutrients for shallow rooting plants It is also known to attract pollinating insects and release ethylene gas which helps fruit to ripen 68 Cultural importance edit It has been a Western tradition for someone to blow out a dandelion seedhead and think of a wish they want to come true 69 Five dandelion flowers are the emblem of White Sulphur Springs West Virginia 70 The citizens celebrate spring with an annual Dandelion Festival citation needed The dandelion is the official flower of the University of Rochester in New York State and Dandelion Yellow is one of the school s official colors The Dandelion Yellow is an official University of Rochester song 71 Inspiration for engineering edit The ability of dandelion seeds to travel as far as a kilometer in dry windy and warm conditions has been an inspiration for designing light weight passive drones In 2018 researchers discovered that dandelion seeds have a separated vortex ring 72 This work provided evidence that dandelion seeds have fluid behavior around fluid immersed bodies that may help understand locomotion weight reduction and particle retention in biological and man made structures In 2022 researchers at the University of Washington demonstrated battery free wireless sensors and computers that mimic dandelion seeds and can float in the wind and disperse across a large area 73 As a source of natural rubber edit See also Taraxacum kok saghyz Rubber Dandelions secrete latex when the tissues are cut or broken yet in the wild type the latex content is low and varies greatly Taraxacum kok saghyz the Russian dandelion is a species that produced industrially useful amounts during WW2 Using modern cultivation methods and optimization techniques scientists in the Fraunhofer Institute for Molecular Biology and Applied Ecology IME in Germany developed a cultivar of the Russian dandelion that is suitable for current commercial production of natural rubber The latex produced exhibits the same quality as the natural rubber from rubber trees 74 In collaboration with Continental AG IME is building a pilot facility As of May 2014 update the first prototype test tires made with blends from dandelion rubber are scheduled for testing on public roads over the next few years 75 In December 2017 Linglong Group Co Ltd a Chinese company invested 450 million into making commercially viable rubber from dandelions 76 References edit Rubar Hussein M Salih Ľubos Majesky Trude Schwarzacher R Gornall Pat Heslop Harrison 9 February 2017 Complete chloroplast genomes from apomictic Taraxacum Asteraceae Identity and variation between three microspecies PLOS ONE 12 2 e0168008 Bibcode 2017PLoSO 1268008M doi 10 1371 journal pone 0168008 PMC 5300115 PMID 28182646 Adrian John Richards 1985 Sectional nomenclature in Taraxacum Asteraceae Taxon 34 4 633 644 doi 10 2307 1222201 JSTOR 1222201 Taraxacum Merriam Webster com Dictionary Greenwood Barbara 2015 Don t Dismiss the Dandelion a b Brouillet Luc Taraxacum F H Wiggers Prim Fl Holsat 56 1780 Flora of North America Bogus Mieczyslawa Irena Wronska Anna Katarzyna Kaczmarek Agata Drozdowski Mikolaj Laskowski Zdzislaw Myczka Anna Cybulska Aleksandra Golebiowski Marek Chwir Golebiowska Adrianna Siecinska Lena Mokijewska Ewelina 20 January 2023 A comprehensive analysis of chemical and biological pollutants natural and anthropogenic origin of soil and dandelion Taraxacum officinale samples PLOS ONE 18 1 e0280810 Bibcode 2023PLoSO 1880810B doi 10 1371 journal pone 0280810 ISSN 1932 6203 PMC 9858760 PMID 36662824 Wild About Dandelions Mother Earth News 1 April 2008 Let dandelions grow Bees beetles and birds need them The Guardian 12 May 2015 Doll J amp Trower T Dandelion WeedScience University of Wisconsin Archived from the original on 22 October 2008 blowball McGraw Hill Dictionary of Scientific amp Technical Terms 6th ed McGraw Hill Companies 2003 Retrieved 26 January 2013 blowball CollinsDictionary com HarperCollins blowball InfoPlease Dictionary dandelion clock Longman English Dictionary Online Pearson Retrieved 2 June 2019 clock The American Heritage Dictionary of the English Language 5th ed HarperCollins Stace C A 2010 New Flora of the British Isles Third ed Cambridge U K Cambridge University Press p 712 ISBN 9780521707725 Cummins Cathal Seale Madeleine Macente Alice Certini Daniele Mastropaolo Enrico Viola Ignazio Maria Nakayama Naomi 2018 A separated vortex ring underlies the flight of the dandelion PDF Nature 562 7727 414 418 Bibcode 2018Natur 562 414C doi 10 1038 s41586 018 0604 2 ISSN 0028 0836 PMID 30333579 S2CID 52988814 Ledda P G Siconolfi L Viola F Camarri S Gallaire F 2 July 2019 Flow dynamics of a dandelion pappus A linear stability approach Physical Review Fluids 4 7 071901 Bibcode 2019PhRvF 4g1901L doi 10 1103 physrevfluids 4 071901 hdl 11568 998044 ISSN 2469 990X S2CID 198429309 Seale Madeleine Zhdanov Oleksandr Cummins Cathal Kroll Erika Blatt Michael R Zare Behtash Hossein Busse Angela Mastropaolo Enrico Viola Ignazio Maria 7 February 2019 Moisture dependent morphing tunes the dispersal of dandelion diaspores doi 10 1101 542696 hdl 10044 1 102018 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help Loebach Christopher A 2015 Investigating seed dispersal distances and long distance dispersal mechanisms of the invasive plant Alliaria Petiolata Illinois State University ISBN 9781321782141 OCLC 988948576 Blamey M Fitter R Fitter A 2003 Wild flowers of Britain and Ireland The Complete Guide to the British and Irish Flora London A amp C Black p 274 ISBN 978 1408179505 a b Kirschner Jan Zaveska Drabkova Lenka Stepanek Jan Uhlemann Ingo April 2015 Towards a better understanding of the Taraxacum evolution Compositae Cichorieae on the basis of nrDNA of sexually reproducing species Plant Systematics and Evolution 301 4 1135 1156 doi 10 1007 s00606 014 1139 0 S2CID 17903814 a b A J Richards 1970 Eutriploid facultative agamospermy in Taraxacum New Phytologist 69 3 761 774 doi 10 1111 j 1469 8137 1970 tb02461 x JSTOR 2430530 Richards A J 1997 Dandelions of Great Britain and Ireland Handbooks for Field Identification Botanical Society of the British Isles Publications p 330 ISBN 978 0 901158 25 3 Overlooked dandelion diversity in BC and everywhere in North America iNaturalist Community Forum 17 January 2020 Retrieved 31 October 2023 Dudman A A Richards A J Stewart Olga 2000 Dandelions of Great Britain and Ireland B S B I handbook Reprinted with minor alterations 2000 ed London Botanical Society of the British Isles ISBN 978 0 901158 25 3 a b Nowicki Marcin Zhao Yichen Boggess Sarah L Fluess Helge Paya Milans Miriam Staton Margaret E Houston Logan C Hadziabdic Denita Trigiano Robert N 13 February 2019 Taraxacum kok saghyz rubber dandelion genomic microsatellite loci reveal modest genetic diversity and cross amplify broadly to related species Scientific Reports 9 1 1915 Bibcode 2019NatSR 9 1915N doi 10 1038 s41598 019 38532 8 ISSN 2045 2322 PMC 6374447 PMID 30760810 Alberta Biodiversity Monitoring Institute Taraxacum ceratophorum Archived from the original on 8 July 2014 Retrieved 29 August 2013 Flora of North America Efloras org Retrieved 29 August 2012 Plants for a Future Search Error www ibiblio org Retrieved 17 April 2017 Dandelion Fondation Louis Bonduelle 5 October 2016 Gardening in Western Washington Dandelions Gardening wsu edu 4 May 2003 Archived from the original on 26 June 2012 Retrieved 29 August 2012 The Pliocene flora of Kholmech southeastern Belarus and its correlation with other Pliocene floras of Europe by Felix Yu VELICHKEVICH and Ewa ZASTAWNIAK Acta Palaeobot 43 2 137 259 2003 Clarke Charlotte Bringle 1977 Edible and useful plants of California Berkeley University of California Press p 191 ISBN 978 0 520 03261 3 Dandelions Maine Organic Farmers and Gardeners Association Archived from the original on 20 February 2017 Retrieved 17 April 2017 Reported in An Etymological Dictionary of the English Language by Walter W Skeat 1888 Downloadable at Archive org In An Etymology Dictionary of Modern English by Ernest Weekley 1921 it is reported that Arabic طرشقون tarashaqun is derivable in turn from Persian تلخ چکوک talkh chakok bitter herb Downloadable at Archive org S Potter amp L Sargent 1973 Pedigree essays on the etymology of words from nature Collins New Naturalist series Volume 56 Britton N F Brown Addison 1970 An illustrated flora of the northern United States and Canada from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102d meridian New York Dover Publications p 315 ISBN 978 0 486 22644 6 Common Dandelion Family Asteraceae PDF Loewer Peter 2001 Solving weed problems Guilford Conn Lyons Press p 210 ISBN 978 1 58574 274 5 Swine s Snout Dandelion clock TheFreeDictionary com Taylor Joseph 1819 Antiquitates curiosae the etymology of many remarkable old sayings proverbs and singular customs explained by Joseph Taylor 2nd ed T amp J Allman p 97 Anon Dandelion far more than a weed PDF Frapez com Frapez soothie spa Archived from the original PDF on 11 July 2011 Retrieved 30 May 2010 Den virtuella floran Taraxacum F H Wigg Maskrosor in Swedish Linnaeus nrm se Retrieved 3 July 2010 a b c Dandelion greens raw Nutritiondata com Conde Nast Inc Retrieved 7 March 2011 a b Katrin Schutz Reinhold Carle amp Andreas Schieber 2006 Taraxacum a review on its phytochemical and pharmacological profile Journal of Ethnopharmacology 107 3 313 323 doi 10 1016 j jep 2006 07 021 PMID 16950583 Carotenoids Micronutrient Information Center Linus Pauling Institute Oregon State University 1 July 2016 Retrieved 27 June 2019 Bogacheva A M Rudenskaya G N Preusser A Tchikileva I O Dunaevsky Y E Golovkin B N Stepanov V M 1999 A new subtilisin like proteinase from roots of the dandelion Taraxacum officinale Webb S L Biochemistry Biokhimiia 64 9 1030 7 PMID 10521720 a b Rudenskaya G N Bogacheva A M Preusser A Kuznetsova A V Dunaevsky YaE null Golovkin B N Stepanov V M 23 October 1998 Taraxalisin a serine proteinase from dandelion Taraxacum officinale Webb s l FEBS Letters 437 3 237 240 doi 10 1016 s0014 5793 98 01243 5 ISSN 0014 5793 PMID 9824298 S2CID 43872064 Osborne Tegan 11 May 2016 Edible weeds that are safe to eat and how you can use them ABC News Australia Retrieved 24 May 2021 McGee Harold 2004 A survey of common vegetables On Food and Cooking the science and lore of the kitchen New York Scribner p 320 ISBN 978 0 684 80001 1 sauteed Dandelion Greens ItalianFoodForever com Kleonikos G Stavridakis Kleonikos G Stayridakhs 2006 Wild edible plants of Crete H Agria brwsimh xlwrida ths Krhths Rethymnon Crete ISBN 978 960 631 179 6 Castronovo Fusco MA 15 April 2008 Dandelion as underrated as underfoot New Jersey On Line Retrieved 7 March 2011 Dyer Anne 1981 Dyes from natural sources Bell amp Hyman ISBN 0713519371 OCLC 219915765 Bill Church 2006 Medicinal Plants Trees amp Shrubs of Appalachia A Field Guide Lulu com p 28 ISBN 978 1 4116 4486 1 Lovell CR Rowan M Dandelion dermatitis Contact Dermatitis 1991 Sep 25 3 185 8 doi 10 1111 j 1600 0536 1991 tb01826 x PMID 1838315 Wirngo FE Lambert MN Jeppesen PB The Physiological Effects of Dandelion Taraxacum Officinale in Type 2 Diabetes Rev Diabet Stud 2016 Summer Fall 13 2 3 113 131 doi 10 1900 RDS 2016 13 113 Epub 2016 Aug 10 PMID 28012278 PMCID PMC5553762 Mohanta YK Mishra AK Nongbet A Chakrabartty I Mahanta S Sarma B Panda J Panda SK Potential use of the Asteraceae family as a cure for diabetes A review of ethnopharmacology to modern day drug and nutraceuticals developments Front Pharmacol 2023 Aug 3 14 1153600 doi 10 3389 fphar 2023 1153600 PMID 37608892 PMCID PMC10441548 Out My Backdoor In Defense of Dandelions Department Of Natural Resources Division georgiawildlife com Retrieved 16 October 2023 D L Buckingham amp W J Peach 2005 The influence of livestock management on habitat quality for farmland birds Animal Science 81 2 199 203 doi 10 1079 ASC50700199 Stewart Wade S M Neumann S Collins L L Boland G J 1 October 2002 The biology of Canadian weeds 117 Taraxacum officinale G H Weber ex Wiggers Canadian Journal of Plant Science Canadian Science Publishing 82 4 825 853 doi 10 4141 p01 010 ISSN 0008 4220 S2CID 85676502 Tibor I Szabo Nectar Secretion in Dandelion Journal of Apicultural Research Volume 23 1984 Issue 4 Pellett Frank Chapman 1920 American Honey Plants Together With Those Which Are of Special Value to the Beekeeper as Sources of Pollen American Bee Journal Publication p 178 ISBN 978 1 152 86271 5 a b Stewart Wade S M Newmann S Collins L L Boland G J 2002 The biology of Canadian weeds 117 Taraxacum officinale G H Weber ex Wiggers Canadian Journal of Plant Science 82 4 825 853 doi 10 4141 P01 010 J Richardson 1 January 1985 In praise of the archenemy Audubon 37 39 ISSN 0097 7136 Non native species National Park Service Love Colleen Coulon Denali s Dandelion Demolition returns after 2020 hiatus KTNA June 17 2021 Anon Companion Planting for Vegetables amp Plants Country living and farm lifestyles countryfarm lifestyles com Retrieved 7 March 2011 Thong Roseanne September 2008 Wish wishing traditions around the world Chronicle Books ISBN 9780811857161 via Google Books Welcome to Main Street White Sulphur Springs Make it home Wssmainstreet org Archived from the original on 4 June 2010 Retrieved 3 July 2010 Songs of the University of Rochester Lib rochester edu 14 January 2010 Retrieved 3 July 2010 Cummins Cathal Seale Madeleine Macente Alice Certini Daniele Mastropaolo Enrico Viola Ignazio Maria Nakayama Naomi October 2018 A separated vortex ring underlies the flight of the dandelion Nature 562 7727 414 418 Bibcode 2018Natur 562 414C doi 10 1038 s41586 018 0604 2 hdl 10044 1 76641 ISSN 0028 0836 PMID 30333579 S2CID 52988814 Iyer Vikram Gaensbauer Hans Daniel Thomas L Gollakota Shyamnath 17 March 2022 Wind dispersal of battery free wireless devices Nature 603 7901 427 433 Bibcode 2022Natur 603 427I doi 10 1038 s41586 021 04363 9 ISSN 0028 0836 PMID 35296847 S2CID 247499662 Making Rubber from Dandelion Juice Science Daily 28 October 2013 Retrieved 22 November 2013 Fraunhofer and Continental come together when the dandelion rubber meets the road 14 October 2013 Retrieved 14 December 2016 Linglong to fund research into dandelion rubber Rubber and Plastics News 20 December 2017 External links edit nbsp Media related to Taraxacum at Wikimedia Commons Retrieved from https en wikipedia org w index php title Taraxacum amp oldid 1206263047, wikipedia, wiki, book, books, library,

article

, read, download, free, free download, mp3, video, mp4, 3gp, jpg, jpeg, gif, png, picture, music, song, movie, book, game, games.