science

Vinca major

Vinca major is a science 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 Vinca major rather than just read about it. In short: Vinca major, the greater periwinkle, also sometimes called bigleaf periwinkle, large periwinkle or blue periwinkle, is a species of flowering plant in the family Apocynaceae, native to the Mediterranean region. Growing to 25 cm (10 in) tall and spreading indefinitely, it is an evergreen perennial, frequently used in cultivation as a ground cover.

Key takeaways

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

Reference excerpt

Vinca major, the greater periwinkle, also sometimes called bigleaf periwinkle, large periwinkle or blue periwinkle, is a species of flowering plant in the family Apocynaceae, native to the Mediterranean region. Growing to 25 cm (10 in) tall and spreading indefinitely, it is an evergreen perennial, frequently used in cultivation as a ground cover.

Description Vinca major is a trailing vine, spreading along the ground and rooting along the stems to form dense masses of ground cover individually 2–5 metres (6+1⁄2–16+1⁄2 ft) across and up to 25 centimetres (10 in) high, perhaps even 50–70 cm (20–28 in). The leaves are opposite, nearly orbicular at the base of the stems and lanceolate at the apex, 3–9 cm (1–3+1⁄2 in) long and 2–6 cm broad, glossy dark green with a leathery texture and an entire but distinctly ciliate margin, and a hairy petiole 1–2 cm long. The flowers are hermaphrodite, axillary and solitary, violet-purple, 3–5 cm in diameter, with a five-lobed corolla. The calyx surrounding the base of the flower is 10–17 millimetres (1⁄2–3⁄4 in) long with hairy margins. The flowering period extends from early spring to autumn.

Similar species The closely related Vinca minor is similar but smaller, with narrower, hairless leaves.

Taxonomy

Subspecies Three subspecies are accepted, with geographically separate ranges:

Vinca major subsp. balcanica (Pénzes) Kozuharov & A.V.Petrova (northern Balkan Peninsula) Vinca major subsp. major - leaf petioles finely hairy, hairs short (southern Europe) Vinca major subsp. hirsuta (Boiss.) Stearn (syn. V. pubescens d'Urv.) - leaf petioles densely hairy, hairs longer; petals much narrower (Caucasus, northern Turkey)

Etymology The genus name probably derives from the Latin word vincire, meaning snip, as the long creeping vines were used to prepare garlands. The Latin specific epithet major means "larger", relative to the similar V. minor.

Distribution and habitat This species is found in southern Europe, from Spain and southern France east to the Balkans, and also in northeastern Turkey and the western Caucasus. It prefers moist undergrowth, woodlands, hedgerows and banks along the rivers at an altitude of 0–800 m (0–2,625 ft) above sea level. It grows well in full sun and in deep shade.

As an invasive plant Vinca major is an invasive species in temperate parts of the United States, South Africa Australia, and New Zealand. It is especially a common noxious weed 'smothering' native plants and diversity in riparian area and oak woodland habitats of coastal California. It forms dense strands that envelop other plant life and can prevent saplings and shrubs from growing by blocking out the light. Periwinkle moves from place to place, with unintentional human help, in dumped garden waste or as plant fragments carried along in water.

Cultivation Vinca major is a commonly grown ornamental plant in temperate gardens for its evergreen foliage, spring flowers, and groundcover or vine use. Many cultivars are available, with differences in flowers, such as white to dark violet flowers, and different patterns and colours of variegated foliage. The cultivar 'Variegata' has gained the Royal Horticultural Society's Award of Garden Merit. It contains the following compounds: vinblastine, vincristine, vindesine and vinorelbine.

Gallery

References

Bibliography Pignatti S. - Flora d'Italia – Edagricole – 1982, Vol. II, pag. 348 Flora Europaea: Vinca major distribution Blamey, M., & Grey-Wilson, C. (1989). Flora of Britain and Northern Europe. Hodder & Stoughton. Huxley, A., ed. (1992). New RHS Dictionary of Gardening 4: 664-665. Macmillan.

External links

Vinca major in the CalPhotos photo database, University of California, Berkeley "Vinca major". Calflora. Berkeley, California: The Calflora Database. "Vinca major". Plants for a Future.

Illustrations

Worked examples

Example 1 — a first encounter with Vinca major

Start with the simplest possible case. Write down what Vinca major claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Vinca major 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 Vinca major 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 Vinca major

In research: Vinca major appears in science 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 Vinca major 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: Vinca major is common in secondary-school and first-year university syllabi. It links to neighbouring topics Botanical taxa named by Carl Linnaeus, Flora of Europe, Garden plants of Europe, so understanding it makes those chapters shorter.
In everyday life: Look for Vinca major 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 Vinca major in 20 minutes

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

Frequently asked questions

What is Vinca major in simple terms?

Why does Vinca major matter?

Because it connects several science 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 Vinca major?

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 Vinca major.