biology

Narcissus cyclamineus

Narcissus cyclamineus 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 cyclamineus rather than just read about it. In short: Narcissus cyclamineus, the cyclamen-flowered daffodil, is a species of flowering plant in the family Amaryllidaceae, native to North West Portugal and North West Spain. Description It is a vigorous bulbous perennial, growing to 15–20 cm (6–8 in) tall, with grass-like leaves, and yellow flowers in early Spring.

Key takeaways

Narcissus cyclamineus 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 cyclamineus to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Narcissus cyclamineus from memory before moving on to harder problems.

Reference excerpt

Narcissus cyclamineus, the cyclamen-flowered daffodil, is a species of flowering plant in the family Amaryllidaceae, native to North West Portugal and North West Spain.

Description It is a vigorous bulbous perennial, growing to 15–20 cm (6–8 in) tall, with grass-like leaves, and yellow flowers in early Spring. The 4.5 cm long, pendent flowers are unusual in that the central trumpet (corona) is long and narrow, while the outer section (perianth) is fully reflexed (folded back on itself). This reflexion superficially resembles that of the distantly related cyclamen.

Cultivation Narcissus cyclamineus is widely planted in gardens, and can be naturalised in a woodland garden or in thin grass, where it will spread by self-seeding. It prefers well-drained, lime-free soil that does not dry out in summer. It is valuable for its bright yellow flowers that appear in early spring with other bulbs such as snowdrops and Cyclamen coum. Due to its small size it is very suitable for growing in a shady rockery or trough. It is a parent of the Cyclamineus Group of hybrid daffodil cultivars, which includes popular varieties such as 'February Gold', 'Jetfire', 'Jack Snipe' and 'Tête à Tête'. Most of these hybrids are significantly larger than the species and whilst the petals may be reflexed to some extent, none so far has the fully reflexed appearance of the parent. Narcissus cyclamineus has gained the Royal Horticultural Society's Award of Garden Merit.

References

Illustrations

Worked examples

Example 1 — a first encounter with Narcissus cyclamineus

Start with the simplest possible case. Write down what Narcissus cyclamineus 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 cyclamineus 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 cyclamineus 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 cyclamineus

In research: Narcissus cyclamineus 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 cyclamineus 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 cyclamineus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Habitats Directive species, Narcissus (plant), so understanding it makes those chapters shorter.
In everyday life: Look for Narcissus cyclamineus 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 cyclamineus in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Narcissus cyclamineus 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 cyclamineus out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Narcissus cyclamineus in simple terms?

Narcissus cyclamineus, the cyclamen-flowered daffodil, is a species of flowering plant in the family Amaryllidaceae, native to North West Portugal and North West Spain. Description It is a vigorous bulbous perennial, growing to 15–20 cm (6–8 in) tall, with grass-like leaves, and yellow flowers in e…

Why does Narcissus cyclamineus 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 cyclamineus?

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 cyclamineus.