biology

Nymphaea mexicana

Nymphaea mexicana 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 Nymphaea mexicana rather than just read about it. In short: Nymphaea mexicana is a species of aquatic plant that is native to the Southern United States and Mexico as far south as Michoacán. Common names include yellow water lily, Mexican water lily and banana water lily.

Key takeaways

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

Reference excerpt

Nymphaea mexicana is a species of aquatic plant that is native to the Southern United States and Mexico as far south as Michoacán. Common names include yellow water lily, Mexican water lily and banana water lily.

Description

Vegetative characteristics Nymphaea mexicana is a rhizomatous, aquatic, perennial herb with stoloniferous, up to 30 cm long, and 4 cm wide rhizomes. The rhizomes bear leaf and root scars. The stolons are 15–100 cm long, and 0.5–1 cm wide. The ovate, suborbicular, or elliptic lamina is 7–18(–27) cm long, and 7–14(–18) cm wide. The long, cylindrical petiole is glabrous.

Generative characteristics The floating or emersed, yellow, 6–13 cm wide flowers have peduncles with four primary air canals. The flowers have four sepals and 12–30 yellow petals. The androecium consists of 50 stamens. The gynoecium consists of seven to ten carpels. The spheroid or ovoid fruit bears 3–5 mm long, and 3–5 mm wide seeds with hairlike papillae. Tuberiferous flowers or proliferating pseudanthia can be present.

Cytology The chromosome count is n = 28. The genome size is 586.80 Mb. The chloroplast genome is 159962 bp long.

Taxonomy It was published by Joseph Gerhard Zuccarini in 1832. Within the subgenus Nymphaea subg. Nymphaea it is placed in the section Nymphaea sect. Xanthantha.

Etymology The specific epithet mexicana refers to Mexico.

Hybridisation Together with Nymphaea odorata, it forms the natural hybrid Nymphaea × thiona.

Reproduction

Vegetative reproduction Nymphaea mexicana reproduces vegetatively through stolons. Their structure, resembling bananas, consists of leaf buds and thick, starchy roots. Additionally, tuberiferous flowers or proliferating pseudanthia can be present.

Conservation The NatureServe conservation status is Vulnerable (G3).

Ecology

Habitat It occurs in up to 4 m deep water in lagoons, canals swamps, and rivers. It can occur in brackish water.

Herbivory The canvasback duck, Aythya valisineria, feeds on the banana-like roots of the plant.

As an invasive species Together with its hybrids, it has become an invasive species outside of its natural range. For instance, it has been recorded in Australia, South Africa, New Zealand, and the Iberian Peninsula.

References

External links Media related to Nymphaea mexicana at Wikimedia Commons

USDA Plants Profile Lady Bird Johnson Wildflower Center California Department of Food and Agriculture

Illustrations

Worked examples

Example 1 — a first encounter with Nymphaea mexicana

Start with the simplest possible case. Write down what Nymphaea mexicana 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 Nymphaea mexicana 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 Nymphaea mexicana 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 Nymphaea mexicana

In research: Nymphaea mexicana 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 Nymphaea mexicana 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: Nymphaea mexicana is common in secondary-school and first-year university syllabi. It links to neighbouring topics Flora of Mexico, Flora of the Southern United States, Flora of the Southwestern United States, so understanding it makes those chapters shorter.
In everyday life: Look for Nymphaea mexicana 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 Nymphaea mexicana in 20 minutes

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

Frequently asked questions

What is Nymphaea mexicana in simple terms?

Why does Nymphaea mexicana 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 Nymphaea mexicana?

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 Nymphaea mexicana.