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Hakea laurina

Hakea laurina 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 Hakea laurina rather than just read about it. In short: Hakea laurina is a shrub or small tree commonly known as kodjet or pin-cushion hakea and is endemic to Western Australia. The Noongar name for the plant is kodjet or kojet.

Hakea laurina — main illustration
Hakea laurina — illustration

Key takeaways

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

Reference excerpt

Hakea laurina is a shrub or small tree commonly known as kodjet or pin-cushion hakea and is endemic to Western Australia. The Noongar name for the plant is kodjet or kojet. It has red and cream conspicuous globular flowers and lance shaped leaves.

Description Hakea laurina is an upright shrub or small tree with smooth grey bark, 2.5–6.0 m (8 ft 2 in – 19 ft 8 in) high, 3–5 m (9.8–16.4 ft) wide and does not form a lignotuber. The inflorescence consists of 120-190 conspicuous white, deep pink or red pin cushion shaped flowers in the leaf axils. The pedicels are 5.5–9.5 mm (0.22–0.37 in) long and smooth. The perianth is dark pink to red, the pistil 14–19.5 mm (0.55–0.77 in) long, cream-white or occasionally red or dark pink. The flower buds are enclosed in scale-like bracts. Flowering occurs from April to July. The leaves are simple, slightly blue green, flat, smooth, margins entire, lance or egg-shaped and taper to a blunt point at the tip. The leaves are arranged alternately along the branches, 7–21 cm (2.8–8.3 in) long, 6–29 mm (0.24–1.14 in) wide on a stem 1–2 cm (0.39–0.79 in) long and narrowing at the base. The fruit are in clusters of 1–10 per axil, 2.2–3.8 cm (0.87–1.50 in) long, 1.6–2.3 cm (0.63–0.91 in) wide, egg-shaped, smooth, occasionally with rough pitting and ending in a short beak.

Taxonomy and naming Hakea laurina was first formally described in 1830 by Robert Brown and the description was published in Supplementum primum prodromi florae Novae Hollandiae. The specific epithet is derived from the Latin laurus with reference to the resemblance of the leaves to laurel.

Distribution Pincushion hakea is endemic to the coastal southwest of Western Australia, the northernmost range being Narrogin and extending east to Esperance. The habitat is often sandplains, sometimes occurring on sandy clay; most recorded specimens are in the southern districts of its botanical province. Introduced populations are known to exist on Kangaroo Island and in the Mount Lofty Ranges in South Australia.

Cultivation The plant, which is propagated from seeds, is used in cultivation in the eastern states of Australia, and as a hedging or street plant in America and Italy. Adaptable to a number of soil types, the plant is also tolerant of frost. The uses of this species include ornament and shading in public streets, wildlife habitat, windbreaks, and control of soil erosion.

Conservation status Hakea laurina is listed as Vulnerable on the IUCN Red List of Threatened Species due to a suspected decline of at least 30% over the past three generations of the species, mainly due to land clearing for agriculture. The remnant subpopulations along road verges are threatened by further clearance for road maintenance, as well as weed invasion, pollution from phosphate fertilizers used in farming and altered fire regimes resulting in insufficient fire frequency. The species is found within the protected areas of Cape Arid National Park, Fitzgerald River National Park, Stirling Range National Park and Lake Magenta Nature Reserve. Additional conservation actions required for the species include maintaining and managing threats of the populations along road verges, as well as regular monitoring of populations.

References

External links Media related to Hakea laurina at Wikimedia Commons

Illustrations

Hakea laurina illustration
Hakea laurina illustration
Hakea laurina illustration
Hakea laurina: Detail showing crimson flower head
Detail showing crimson flower head

Worked examples

Example 1 — a first encounter with Hakea laurina

Start with the simplest possible case. Write down what Hakea laurina 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 Hakea laurina 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 Hakea laurina 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 Hakea laurina

In research
Hakea laurina 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 Hakea laurina 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
Hakea laurina is common in secondary-school and first-year university syllabi. It links to neighbouring topics Drought-tolerant trees, Eudicots of Western Australia, Hakea, so understanding it makes those chapters shorter.
In everyday life
Look for Hakea laurina 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 Hakea laurina in 20 minutes

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

Frequently asked questions

What is Hakea laurina in simple terms?

Hakea laurina is a shrub or small tree commonly known as kodjet or pin-cushion hakea and is endemic to Western Australia. The Noongar name for the plant is kodjet or kojet.

Why does Hakea laurina 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 Hakea laurina?

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 Hakea laurina.

Tags

  • Drought-tolerant trees
  • Eudicots of Western Australia
  • Hakea
  • IUCN Red List vulnerable species
  • Ornamental trees
  • Trees of Australia
  • Trees of Mediterranean climate

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