biology

Narcissus pseudonarcissus

Narcissus pseudonarcissus is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Narcissus pseudonarcissus rather than just read about it. In short: Narcissus pseudonarcissus, commonly named the wild daffodil or Lent lily (Welsh: Cennin Pedr), is a perennial flowering plant. This species has pale yellow tepals, with a darker central trumpet.

Key takeaways

Narcissus pseudonarcissus belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Narcissus pseudonarcissus to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Narcissus pseudonarcissus from memory before moving on to harder problems.

Reference excerpt

Narcissus pseudonarcissus, commonly named the wild daffodil or Lent lily (Welsh: Cennin Pedr), is a perennial flowering plant. This species has pale yellow tepals, with a darker central trumpet. The long, narrow leaves are slightly greyish green in colour and rise from the base of the stem. The plant grows from a bulb. The flowers produce seeds which, when germinated, take five to seven years to produce a flowering plant. (Sexual seed reproduction mixes the traits of both parent flowers, so if garden hybrid cultivars are planted close to wild populations of Narcissus pseudonarcissus, there is a danger that the new seedlings, having hybrid vigour, could out-compete the wild plants.)

Distribution

The species is native to Western Europe from Spain and Portugal east to Germany and north to England and Wales. It is commonly grown in gardens and populations have become established in the Balkans, Australia, New Zealand, the Caucasus, Madeira, British Columbia, Ontario, Newfoundland, Nova Scotia, Oregon, Washington state, much of the eastern United States, and the Falkland Islands. Wild plants grow in woods, grassland and on rocky ground. In Britain native populations have decreased substantially since the 19th century due to intensification of agriculture, clearance of woodland and uprooting of the bulbs for use in gardens. In Germany it was a subject of a national awareness campaign for the protection of wildflowers in 1981. In England, the Farndale valley in the North York Moors National Park hosts a large population of the species, along the banks of the River Dove. There are several nature reserves in Gloucestershire supporting large populations of the species near Dymock Woods SSSI. There is a Daffodil Walk Trail around several reserves in the spring. In addition, various cultivars of N. pseudonarcissus have escaped and become naturalised across the United Kingdom, and can often be found growing on roadsides, in parks, along streams and in areas where bulbs have been deposited alongside other organic material removed from gardens.

Taxonomy

Synonyms The history of N. pseudonarcissus has generated a large number of synonyms, including:

Subspecies There are a number of subspecies of the wild daffodil but the exact number varies according to different authors. The large number of cultivars adds to the difficulty of classification. Among the subspecies is the Tenby daffodil (N. pseudonarcissus ssp. obvallaris, sometimes classed as a separate species), which probably originated in cultivation but now grows wild in southwest Wales. Many of the subspecies listed below are currently considered as species by the Royal Horticultural Society, the International Cultivar Registration Authority for daffodils. Those marked agm are recipients of the RHS Award of Garden Merit.

ssp. pseudonarcissus agm Narcissus pseudonarcissus subsp. pseudonarcissus – Lent lily, wild daffodil – England and Wales ssp. bicolor (syn. N. bicolor L.) ssp. calcicarpetanus Fernández Casas ssp. eugeniae – Central Spain (syn. N. eugeniae Fernández Casas) ssp. major – Spanish daffodil, great daffodil – Iberia (syn. N. hispanicus Gouan.) ssp. moschatus (L.) Baker agm – swan's-neck daffodil (syn. ssp. candidissimus Desf.; syn. N. moschatus L., N. alpestris Pugsley.) ssp. munozii-garmendiae Fernández Casas ssp. nevadensis – Iberia (syn. N. nevadensis Pugsley) ssp. nobilis – (syn. N. nobilis (Haw.) Schult. & Schult.f.) large flower daffodil – Iberia. The largest floral diameter of Narcissus, at over 12.5 cm ssp. obvallaris agm – Tenby daffodil – southern Wales (syn. N. obvallaris, Salisb., sometimes considered to be derived from relict cultivation of ssp. major [1]) ssp. pallidiflorus – pale flower daffodil – Spain and France ssp. portensis – Iberia (syn. N. portensis Pugsley) ssp. pugsleyanus Barra & López – Spain ssp. radinganorum (syn. N. radinganorum Fernández Casas) – southeast Spain

Varieties Narcissus pseudonarcissus ssp. pseudonarcissus itself has many varieties (described by H.W. Pugsley in an article in the Journal of the Royal Horticultural Society of 1933), including var. festinus, var. humilis, var. insignis, var. minoriformis, var. montinus, var. platylobus and var. porrigens. The eighth variety described by Pugsley, var. pisanus, was further defined by A. Fernandes in the Daffodil and Tulip Year Book of 1968.

Double-flowered cultivars Recent research in Wales, southwest England and northern France by keen horticulturists has discovered a small number of remarkably distinct, double-flowered specimens of N. pseudonarcissus growing among wild or naturalised populations of normal N. pseudonarcissus. Such rare forms were known to exist as long ago as the late 16th and early 17th century by botanists and herbalists such as John Gerard and John Parkinson, who variously described them as "Pseudonarcissus Anglicus flore pleno", "Gerrards double Daffodill" and later "The English Double Daffodil". Bulbs have been collected with the landowners' permission and it is hoped that some of these unusual cultivars may become commercially available in the future.

Emblem The daffodil is the national flower of Wales, it is called Cennin Pedr (Peter's Leek) in Welsh. The daffodil is also the county flower of Gloucestershire.

Health risks Like all Narcissus species, daffodils contain the alkaloid poison lycorine, mostly in the bulb, but also in the leaves. Because of this, daffodil bulbs and leaves should never be eaten.

See also List of Award of Garden Merit narcissus List of Narcissus species List of plants known as lily

References

Further reading Newton, Rosemary; Hay, Fiona; Ellis, Richard (February 2015). "Ecophysiology of seed dormancy and the control of germination in early spring-flowering Galanthus nivalis and Narcissus pseudonarcissus (Amaryllidaceae)". Botanical Journal of the Linnean Society. 177 (2): 246–262. doi:10.1111/boj.12240.

External links Media related to Narcissus pseudonarcissus at Wikimedia Commons

Narcissus pseudonarcissus - Plants For A Future database report photo of herbarium specimen, at Missouri Botanical Garden, Narcissus pseudonarcissus, collected in Missouri

Illustrations

Worked examples

Example 1 — a first encounter with Narcissus pseudonarcissus

Start with the simplest possible case. Write down what Narcissus pseudonarcissus claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Narcissus pseudonarcissus before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Narcissus pseudonarcissus ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Narcissus pseudonarcissus

In research: Narcissus pseudonarcissus appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Narcissus pseudonarcissus in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Narcissus pseudonarcissus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Botanical taxa named by Carl Linnaeus, Flora of Albania, Flora of Bulgaria, so understanding it makes those chapters shorter.
In everyday life: Look for Narcissus pseudonarcissus outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Narcissus pseudonarcissus in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Narcissus pseudonarcissus means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Narcissus pseudonarcissus out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Narcissus pseudonarcissus in simple terms?

Narcissus pseudonarcissus, commonly named the wild daffodil or Lent lily (Welsh: Cennin Pedr), is a perennial flowering plant. This species has pale yellow tepals, with a darker central trumpet.

Why does Narcissus pseudonarcissus matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Narcissus pseudonarcissus?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Narcissus pseudonarcissus.