science

Saxifraga oppositifolia

Saxifraga oppositifolia 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 Saxifraga oppositifolia rather than just read about it. In short: Saxifraga oppositifolia, the purple saxifrage or purple mountain saxifrage, is a species of plant that is very common in the high Arctic and also some high mountainous areas further south, including northern Britain, the Alps and the Rocky Mountains. Saxifraga oppositifolia grows at a latitude of 83°40'N on Kaffeklubben Island, making it one of the northernmost plants in the world.

Key takeaways

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

Reference excerpt

Saxifraga oppositifolia, the purple saxifrage or purple mountain saxifrage, is a species of plant that is very common in the high Arctic and also some high mountainous areas further south, including northern Britain, the Alps and the Rocky Mountains. Saxifraga oppositifolia grows at a latitude of 83°40'N on Kaffeklubben Island, making it one of the northernmost plants in the world.

Description Saxifraga oppositifolia is a low-growing, densely or loosely matted plant growing up to 5 cm (2 in) high, with somewhat woody branches of creeping or trailing habit close to the surface. The leaves are small, rounded, scale-like, opposite in four rows with ciliated margins. The flowers are solitary on short stalks, petals purple or lilac, much longer than the calyx lobes. It is one of the first spring flowers, continuing to flower during the whole summer in localities where the snow melts later. The flowers grow to about 1 cm (1⁄2 in) in diameter.

Ecology

Habitat Saxifraga oppositifolia grows in all kinds of cold temperate to Arctic habitats, usually found from sea level up to 1,000 m (3,300 ft), in many places colouring the landscape. Its native habitats include tundra, arctic coastal bluffs, alpine scree, and rock crevices. Swiss botanist Christian Körner found the plant growing at an elevation of 4,505 m (14,780 ft) in the Swiss alps, making it the highest elevation angiosperm in Europe. It is even known to grow on Kaffeklubben Island in north Greenland, at 83°N 40°E, the most northerly plant locality in the world.

Species interactions The flowers of Saxifraga oppositifolia may be consumed by certain animal species, such as the caterpillars of the cold-adapted Gynaephora groenlandica, the Arctic woolly-bear caterpillar.

Uses Saxifraga oppositifolia is a popular plant in alpine gardens, though difficult to grow in warm climates.

The edible flower petals are eaten, particularly in parts of Nunavut without abundant berries. They are bitter at first but then become sweet. They are also slightly sticky. It is known to the Inuit as aupilaktunnguat. The leaves and stems are brewed for herbal tea. According to many Nunavummiut, the tea is best later in the season once the flowers have died. Saxifraga oppositifolia serves as the territorial flower of Nunavut in Canada, a symbolic flower of Nordland county in Norway, and the county flower of County Londonderry in Northern Ireland.

Taxonomy There are a few subspecies of Saxifraga oppositifolia, including:

Saxifraga oppositifolia ssp. glandulisepala Hultén – native to Alaska Saxifraga oppositifolia ssp. oppositifolia L. – native to continental US Saxifraga oppositifolia ssp. smalliana (Engl. & Irmsch.) Hultén – native to Alaska

References

Illustrations

Worked examples

Example 1 — a first encounter with Saxifraga oppositifolia

Start with the simplest possible case. Write down what Saxifraga oppositifolia 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 Saxifraga oppositifolia 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 Saxifraga oppositifolia 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 Saxifraga oppositifolia

In research: Saxifraga oppositifolia 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 Saxifraga oppositifolia 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: Saxifraga oppositifolia is common in secondary-school and first-year university syllabi. It links to neighbouring topics Alpine flora, Botanical taxa named by Carl Linnaeus, Edible plants, so understanding it makes those chapters shorter.
In everyday life: Look for Saxifraga oppositifolia 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 Saxifraga oppositifolia in 20 minutes

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

Frequently asked questions

What is Saxifraga oppositifolia in simple terms?

Why does Saxifraga oppositifolia 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 Saxifraga oppositifolia?

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 Saxifraga oppositifolia.