biology

Melaleuca preissiana

Melaleuca preissiana 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 Melaleuca preissiana rather than just read about it. In short: Melaleuca preissiana, commonly known as stout paperbark, modong or moonah, is a plant in the myrtle family, Myrtaceae and is endemic to coastal areas of southwest Australia. It is a shrub or small tree with papery bark, small leaves and spikes of usually white flowers.

Key takeaways

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

Reference excerpt

Melaleuca preissiana, commonly known as stout paperbark, modong or moonah, is a plant in the myrtle family, Myrtaceae and is endemic to coastal areas of southwest Australia. It is a shrub or small tree with papery bark, small leaves and spikes of usually white flowers. It occurs chiefly in areas that are seasonally wet.

Description Melaleuca preissiana is a shrub or small tree sometimes growing to 10–15 m (30–50 ft) tall with papery bark or sometimes pale-coloured, hard bark. Its leaves are arranged alternately and are 6–14 mm (0.2–0.6 in) long, 0.7–2.1 mm (0.03–0.08 in) wide, flat, narrow elliptic to narrow egg-shaped with the end tapering to a point. The flowers are usually white, but sometimes a shade of cream or yellow. They are arranged in spikes on the ends of branches which continue to grow after flowering and sometimes in the upper leaf axils. The spikes are up to 20 mm (0.8 in) in diameter with 7 to 21 groups of flowers in threes. The petals are 2.0–2.5 mm (0.079–0.098 in) long and fall off as the flower ages. The stamens are arranged in five bundles around the flower and there are 27 to 36 stamens per bundle. Flowering occurs from August to March and is followed by fruit which are woody capsules, 2.5–3 mm (0.098–0.12 in) long.

Taxonomy and naming Melaleuca preissiana was first formally described by Johannes Conrad Schauer in Johann Georg Christian Lehmann's 1844 Plantae Preissianae from a specimen collected by James Drummond. The specific epithet (preissianna) honours Ludwig Preiss, a prolific collector of Western Australian plants and animals.

Distribution and habitat This melaleuca occurs in coastal regions between Jurien Bay, Western Australia and Albany in the Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain and Warren biogeographic regions. It is one of three typical trees occurring in the peat of mound springs of the Swan Coastal Plain, ecological communities surrounding aquifer discharges of the Gnangara Mound.

Conservation Melaleuca preissiana is classified as not threatened by the Government of Western Australia Department of Parks and Wildlife.

References

Illustrations

Worked examples

Example 1 — a first encounter with Melaleuca preissiana

Start with the simplest possible case. Write down what Melaleuca preissiana 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 Melaleuca preissiana 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 Melaleuca preissiana 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 Melaleuca preissiana

In research: Melaleuca preissiana 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 Melaleuca preissiana 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: Melaleuca preissiana is common in secondary-school and first-year university syllabi. It links to neighbouring topics Endemic flora of Western Australia, IUCN Red List least concern species, Least concern flora of Australia, so understanding it makes those chapters shorter.
In everyday life: Look for Melaleuca preissiana 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 Melaleuca preissiana in 20 minutes

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

Frequently asked questions

What is Melaleuca preissiana in simple terms?

Why does Melaleuca preissiana 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 Melaleuca preissiana?

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 Melaleuca preissiana.