Overview

Brief Summary

There are around 100 species of daffodil, or narcissus. Daffodil flowers have six leaves, including three petals and three sepals. The inner part of the flowers is bowl-shaped. Daffodils are often yellow, but other colors can be found. Daffodil bulbs and leaves are poisonous. The wild daffodil is often found in gardens in Europe and North America.

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Ecology

Associations

Foodplant / pathogen
Aphelenchoides blastophthorus infects and damages flower bud of Narcissus

Foodplant / pathogen
Armillaria mellea s.l. infects and damages Narcissus
Other: unusual host/prey

Foodplant / pathogen
colony of Botrytis dematiaceous anamorph of Botryotinia narcissicola infects and damages brown leaf of Narcissus
Remarks: season: Spring

In Great Britain and/or Ireland:
Foodplant / pathogen
sclerotium of Botrytis dematiaceous anamorph of Botryotinia polyblastis infects and damages dead debris of Narcissus

Foodplant / pathogen
Cucumber Mosaic virus infects and damages Narcissus

Foodplant / pathogen
Ditylenchus dipsaci infects and damages live, soft or necrotic bulb of Narcissus

Foodplant / internal feeder
larva of Eumerus strigatus feeds within decaying bulb of Narcissus
Other: major host/prey

Foodplant / internal feeder
larva of Eumerus tuberculatus feeds within decaying bulb of Narcissus
Other: major host/prey

Foodplant / pathogen
colony of Fusarium hyphomycetous anamorph of Fusarium oxysporum f.sp. narcissi infects and damages rich brown to red-violet rotten bulb scale of Narcissus
Other: major host/prey

Foodplant / internal feeder
larva of Merodon equestris feeds within bulb of Narcissus
Other: major host/prey

Foodplant / pathogen
Narcissus Mosaic virus infects and damages Narcissus

Foodplant / feeds on
Cylindrocarpon anamorph of Nectria radicicola feeds on rotten root of Narcissus

Foodplant / pathogen
Pratylenchus infects and damages root of Narcissus
Other: major host/prey

Foodplant / spot causer
amphigenous colony of Ramularia anamorph of Ramularia vallisumbrosae causes spots on live stem of Narcissus

Foodplant / pathogen
Rhizoctonia tuliparum infects and damages bulb of Narcissus
Other: minor host/prey

Foodplant / feeds on
Rhizoglyphus feeds on live, damaged bulb of Narcissus

Foodplant / pathogen
Rosellinia necatrix infects and damages brown rotting, blackening bulb of Narcissus

Foodplant / saprobe
pycnidium of Stagonospora coelomycetous anamorph of Stagonosporopsis curtisii is saprobic on dead Narcissus

Foodplant / feeds on
Steneotarsonemus laticeps feeds on live bulb scale of Narcissus
Other: major host/prey

Foodplant / saprobe
larva of Syritta pipiens is saprobic on decaying bulb of Narcissus

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Evolution and Systematics

Functional Adaptations

Functional adaptation

Flexibility reduces drag: daffodil
 

The flowers of daffodils twist in the wind, reducing drag because of their torsional flexibility due to stem noncircularity.

   
  "And daffodil flowers, borne off to one side of their stems, swing around similarly, reducing their drag by about 30 percent in the process (Etnier and Vogel 2000). Twisting in the wind isn't just a slogan left over from the Nixon presidency. Daffodils appear to 'dance' in the wind, as noted by the poet William Wordsworth, because down near ground level, winds are especially puffy." (Vogel 2003:382)

"Daffodil flowers extend laterally from the long axes of their stems; as a result, wind on a flower exerts torsional as well as flexural stress on the stem. Stems respond by twisting, and thus flowers reorient to face downwind in moderate winds, in the process reducing their drag by ∼30%. This repositioning is facilitated by the stems' relatively low torsional stiffness. Daffodil stems have a ratio of flexural to torsional stiffness of 13.27 ± 0.96 (SD), compared with 8.33 ± 3.20 (SD) for tulip stems, which bear flowers as symmetrical extensions of their long axes, and compared with 1.5 for isotropic, incompressible, circular cylinders." (Etnier and Vogel 2000:29)

  Learn more about this functional adaptation.
  • Steven Vogel. 2003. Comparative Biomechanics: Life's Physical World. Princeton: Princeton University Press. 580 p.
  • Etnier SA; Vogel S. 2000. Reorientation of Daffodil (Narcissus: Amaryllidaceae) Flowers in Wind: Drag Reduction and Torsional Flexibility. American Journal of Botany. 87(1): 29-32.
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:39Public Records:29
Specimens with Sequences:33Public Species:13
Specimens with Barcodes:33Public BINs:0
Species:16         
Species With Barcodes:14         
          
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Barcode data

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Narcissus

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Wikipedia

Narcissus (plant)

Narcissus

Narcissus (play /nɑrˈsɪsəs/)[1] is a genus of mainly hardy, mostly spring-flowering, bulbs in the Amaryllis family, subfamily Amaryllidoideae,[2] native to Europe, North Africa, and Asia. There are also several Narcissus species that bloom in the autumn. Though Hortus Third [3] cites 26 wild species, Daffodils for North American Gardens[4] cites between 50 and 100 including species variants and wild hybrids. Through taxonomic and genetic research, it is speculated that over time this number will probably continue to be refined.[5] Daffodil is a common English name, sometimes used now for all varieties, and is the chief common name of horticultural prevalence used by the American Daffodil Society.[6] The range of forms in cultivation has been heavily modified and extended, with new variations available from specialists almost every year.

Contents

Names

There are two derivations of the name. One is that of the youth of Greek mythology called Narcissus, who, in at least one of many variations of the tale, became so obsessed with his own reflection as he kneeled and gazed into a pool of water that he fell into the water and drowned. In some variations, he died of starvation and thirst from just sitting by the edge of the pool until he gave out, gazing at his reflection until he died. In both versions, the Narcissus plant first sprang from where he died.

The other derivation is that the plant is named after its narcotic properties (ναρκάω narkao, "I grow numb" in Greek).[7] There are several plurals in common use: "Narcissuses", "Narcissi", and "Narcissus". This last is common in American English but is very rare in British usage. The American Webster's Third New International Dictionary gives plurals in the order "Narcissus", "Narcissuses", and "Narcissi", but the British Compact Oxford English Dictionary[clarification needed] lists just "Narcissi" and "Narcissuses".

The name Daffodil is derived from an earlier "Affodell", a variant of Asphodel. The reason for the introduction of the initial "d" is not known, although a probable source is an etymological merging from the Dutch article "de," as in "De affodil." From at least the 16th century, "Daffadown Dilly", "daffadown dilly", and "daffydowndilly" have appeared as playful synonyms of the name.

The name jonquil is sometimes used in North America, particularly in the South,[clarification needed], but strictly speaking that name belongs to only the rush-leaved Narcissus jonquilla and cultivars derived from it.[citation needed]

Flowers of the tazetta-group species Narcissus papyraceus are commonly called paperwhites.

Description

A daffodil closeup showing the various parts of the flower in detail

All Narcissus species have a central bell-, bowl-, or disc-shaped corona surrounded by a ring of six floral leaves called the perianth which is united into a tube at the forward edge of the 3-locular ovary. The seeds are black, round and swollen with a hard coat. The three outer segments are sepals, and the three inner segments are petals. Though the traditional daffodil of folklore, poetry, and field may have a yellow to golden-yellow color all over, both in the wild species and due to breeding, the perianth and corona may be variously colored. Breeders have developed some daffodils with double, triple, or ambiguously multiple rows and layers of segments, and several wild species also have known double variants.

Toxicity

All Narcissus varieties contain the alkaloid poison lycorine, mostly in the bulb but also in the leaves.[8][9]

On 1 May 2009 a number of school children fell ill at Gorseland Primary School in Martlesham Heath, Suffolk, England, after a daffodil bulb was added to soup during a cookery class. The bulbs could often be confused with onions, thereby leading to incidents of accidental poisoning.[9]

One of the most common dermatitis problems for florists, "daffodil itch" involves dryness, fissures, scaling, and erythema in the hands, often accompanied by subungual hyperkeratosis (thickening of the skin beneath the nails). It is blamed on exposure to calcium oxalate in the sap.[10][11] It has long been recognised that some cultivars provoke dermatitis more readily than others. The cultivars 'Actaea', 'Camparelle', 'Gloriosa', 'Grande Monarque', 'Ornatus', 'Princeps' and 'Scilly White' are particularly troublesome.[12]

Medicine

In the traditional Japanese medicine of kampo, wounds were treated with narcissus root and wheat flour paste;[13] the plant, however, does not appear in the modern kampo herb list. The Roman physician Aulus Cornelius Celsus listed narcissus root in De Medicina among medical herbs, described as emollient, erodent, and "powerful to disperse whatever has collected in any part of the body". In one scientific study, the ethanol extract of the bulbs was found effective in one mouse model of nociception, para-benzoquinone induced abdominal constriction, but not in another, the hot plate test.[14]

Daffodils are grown commercially near Brecon in Powys, Wales, to produce galantamine, a drug used to combat Alzheimer's disease.[15]

Species

Cultural importance

A field of daffodils in Cornwall, UK

The ancient Greeks believed the narcissus plant originated from the vain youth, Narcissus. He died after becoming so obsessed with his reflection in a pool he could not leave. The Greeks say that the gods turned his remains into the Narcissus flower. This also led to the daffodil's being a symbol of unrequited love.[citation needed]

The Narcissus flower is perceived in the West as a symbol of vanity, in the East as a symbol of wealth and good fortune.[citation needed]

The Narcissus is a national flower symbolising the new year or Newroz in the Kurdish culture

In ancient China, a legend about a poor but good man holds he was brought many cups of gold and wealth by this flower. Since the flower blooms in early spring, it has also become a symbol of Chinese New Year. Narcissus bulb carving and cultivation is even an art akin to Japanese bonsai. If the Narcissus blooms on Chinese New Years, it is said to bring extra wealth and good fortune throughout the year. Its sweet fragrances are highly revered in Chinese culture.

In classical Persian literature, the narcissus is a symbol of beautiful eyes, together with other flowers that equal a beautiful face with a spring garden, like roses for cheeks and violets for shining dark hair.

The daffodil is the national flower of Wales, where it is traditional to wear a daffodil or a leek on Saint David's Day (March 1).

In some countries the yellow variation is associated with Easter. The German for daffodil is Osterglocke, that is "Easter bell."

William Wordsworth's short poem I Wandered Lonely as a Cloud has become linked in the popular mind with the daffodils that form its main image.[citation needed]

Various cancer charities around the world, including the American Cancer Society,[16] New Zealand Cancer Society,[17] Cancer Council Australia,[18] and the Irish Cancer Society,[19] use the daffodil as a fundraising symbol. "Daffodil Days", first instituted in Toronto in 1957 by the Canadian Cancer Society,[20] are organized to raise funds by offering the flowers in return for a donation.

Horticultural divisions

Close-up photo of a daffodil's trumpet

The American Daffodil Society - ADS[21] divides all Narcissus into 13 horticultural divisions, based partly upon flower form and partly upon genetic background. Since the ADS Web site is written for general consumption, the text of the descriptions contained there is relatively broad.[6] Horticulturist Robert F. Gabella of GardenOpus[22] has further clarified herein these definitions by replacement of the words "cup" with "corona", "petals" with "perianth segments", and clarified corona length and corona radius for cases where the corona does not protrude outward. Gabella has further emphasized the prevalence of species phenotype comparable to the genetic lineage of ADS Divisions 5 through 10, and has also called out garden and/or wild origin.[5]

The divisions are:

  • Division 1: Trumpet Daffodils. Plants are of garden origin. Corona length is equal to or exceeds the length of the perianth segments, flowers are borne one to a stem.
  • Division 2: Large-cupped Daffodils. Plants are of garden origin. Corona length, or corona radius if flattened, is more than 1/3 but less than equal to the length of the perianth segments; flowers are borne one to a stem.
  • Division 3: Small-cupped Daffodils. Corona length, or corona radius if flattened, is no more than 1/3 the length of the perianth segments; flowers are borne one to a stem.
  • Division 4: Double Daffodils. Any daffodil in which more than one layer of perianth segments and/or more than one layer of corona segments are present. The combination of doubled perianth and corona segments can vary widely between cultivars, and there may be one or more flowers per stem, also varying by cultivar.
  • Division 5: Triandrus Daffodils. Characteristics of Narcissus triandrus and its allies clearly evident; flowers hang more or less downward, perianth segments are often reflexed, and plants most often bear two or more flowers per stem.
  • Division 6: Cyclamineus Daffodils. Characteristics of Narcissus cyclamineus and its allies clearly evident; perianth segments are often reflexed or wind-swept in appearance, corona length varies but can sometimes exceed the perianth segment length, and flowers are borne one to a stem.
  • Division 7: Jonquilla Daffodils. Characteristics of Narcissus jonquilla and its allies clearly evident; flowers are small to medium sized, perianth segments are flat, corona length varies but is usually short and semi-spherical, foliage may be rush-like and dark green as in the species but phenotypic distillation through crossbreeding between divisions has produced a range of foliage types. Fragrance is usually prominent. Flowers may be borne one to several to a stem, depending upon cultivar.
  • Division 8: Tazetta (Poetaz or Bunch-flowered) Daffodils. Characteristics may be intermediate between Narcissus tazetta and its allies and/or N. tazetta in combination with Narcissus poeticus is ambiguously evident. Perianth segments are flat, corona length is usually short and semi-spherical. Fragrance is usually prominent. Flowers may be borne in clusters of a few to over a dozen per stem, depending upon cultivar.
  • Division 9: Poeticus (Poet's) Daffodils. Characteristics of Narcissus poeticus and its allies clearly evident; flowers are medium sized, perianth segments are flat and nearly always white, corona is small, flat, and wrinkled—usually green eyed and orange-to-red banded—often with intermediate shades of yellow. Fragrance is usually prominent. Flowers are usually borne one, but very occasionally two, to a stem.
  • Division 10: Bulbocodium Daffodils. Characteristics of Narcissus bulbocodium and its allies clearly evident; flowers are small, perianth segments are small, linear to awl-shaped, corona is very large in proportion to the perianth and "hoop petticoat" or bowl shaped, foliage is usually rush-like and dark green as in the species. Flowers are borne one to a stem.
  • Division 11: Split-corona Daffodils. Plants are of garden origin and can represent any potential genetic background. The corona, which can be any length or orientation, is radially split from the outer rim inward at more than half its natural length. The splitting can occur triradially or hexiradially, and in some cases the segments may be broad enough to underlap and overlap alternating perianth segments. Though flowers are most often borne one to a stem, there are cultivars with multiple flowers per stem. Division 11 is subdivided as follows:
    • a) Collar Daffodils. Corona segments lie opposite the perianth segments and are usually in two whorls of three.
    • b) Papillon Daffodils. Corona segments lie alternate to the perianth segments and are usually in a single whorl of six.
  • Division 12: Miscellaneous Daffodils. Any daffodils of garden origin not classifiable by the first 11 Divisions. They may be inter-division hybrids, or of such ambiguous heritage or phenotype that they do not easily fit into any of the above divisions. This includes the dwarf daffodil "Tete-a-Tete".
  • Division 13: Species, Wild Variants and Wild Hybrids. All Daffodils occurring naturally in the wild. Plants of the preceding 12 divisions are all of garden origin.
  • Miniature Daffodils - Miniature Daffodils are not an official ADS Division; miniatures can occur in each of the other 13 Divisions and possess the same descriptive characteristics. However, the flowers are 1.5 in (38 mm) or less in diameter, and ideally are borne on proportionally smaller plants.

Color range and classification

Narcissus 'Geranium'

Daffodils may be self-colored—i.e., both perianth and corona identical in color and shade—or the colors between the perianth and corona may differ widely. Some perianths and some coronas also may contain more than one color or shade. Prevalent colors are all shades and tones of yellow, white, orange, pink, red and green. Pinks vary from apricot to rose in shades from pale to deep, and some more recent cultivars have hints of lavender or lilac. Reds vary from orange-red to salmon red to near scarlet. Pink, red, orange and green tones are mainly confined to the corona. However, breeders are currently working against the genera's natural pigmentation and genetic barriers to create cultivars in which pink, rose, red, orange and green tones suffuse or "bleed" from the more highly colored coronas onto the perianth segments of white or yellow. There are an increasing number of commercially available varieties which display this enhanced coloration.

  • ADS Color Classification:[6]
    • W = White or whitish
    • G = Green
    • Y = Yellow
    • P = Pink
    • O = Orange
    • R = Red

The flower's two regions are assigned color somewhat differently. The perianth colors are assigned from (in the case of multiple colors) the outer edge of the segment inward to the base of the corona. The corona colors are assigned from the base of the corona outward to the rim. Thus, Actaea, a Poeticus (Division 9) Daffodil, is officially classified as 9 W-GYR, while Accent, a Large Cup (Division 2) Daffodil possessing a white perianth and a pink corona, is officially classified as 2 W-P.

Gallery

Daffodill in the neighborhood called Capitol Hill  
A daffodil/narcissus bulb, after division  
Narcissus 'Tahiti' (yellow)  
Paperwhite flowers  
Daffodil Narcissus on Vancouver Island  
Wild daffodil  

References

  1. ^ Sunset Western Garden Book, 1995:606–607
  2. ^ Stevens, P.F. (2001 onwards), Angiosperm Phylogeny Website: Asparagales: Amaryllidoideae, http://www.mobot.org/mobot/research/apweb/orders/asparagalesweb.htm#AllAma 
  3. ^ Hortus Third, Staff of The L. H. Bailey Hortorium, Cornell University, 1976, pp. 754-756. (Macmillan Publishing Company, NY, NY; ISBN 0-02-505470-8)
  4. ^ Daffodils For North American Gardens, Brent and Becky Heath, 2001, (Bright Sky Press, Albany, TX; NY, NY; ISBN 0-9704729-7-8)
  5. ^ a b GardenOpus
  6. ^ a b c American Daffodil Society - ADS
  7. ^ Mrs. M. Grieve. "Narcissus Family: N.O. Amaryllidaceae". Botanical.com. http://www.botanical.com/botanical/mgmh/n/narcis01.html. Retrieved 2011-02-25. 
  8. ^ Food and nutrition Daffodil dinner David Trinklein, Department of Horticulture, University of Missouri, Accessed March 2008
  9. ^ a b "Pupils ill after bulb put in soup". BBC News. 2009-05-03. http://news.bbc.co.uk/1/hi/england/suffolk/8031344.stm. Retrieved 2010-03-27. 
  10. ^ Floridata: Narcissus spp
  11. ^ Electronic Textbook of Dermatology-Botanical Dermatology , Occupational Plant Dermatoses
  12. ^ Narcissus in BoDD – Botanical Dermatology Database
  13. ^ Carmen Altomonte. "Kampo — The Japanese Art of Herbal Healing". http://www.ittendojo.org/articles/general-8.htm. 
  14. ^ PMID 9379365
  15. ^ "Daffodil drug's major investment" at news.bbc.co.uk
  16. ^ Daffodil Day American Cancer Society
  17. ^ Daffodil Day New Zealand Cancer Society,
  18. ^ Daffodil Day Cancer Council Australia,
  19. ^ Daffodil Day Irish Cancer Society
  20. ^ Canadian Cancer Society Daffodil Days
  21. ^ "The United States Center for Daffodil Information". American Daffodil Society. http://daffodilusa.org. Retrieved 2011-02-25. 
  22. ^ GardenOpus
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