science

Parnassia palustris

Parnassia palustris 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 Parnassia palustris rather than just read about it. In short: Parnassia palustris, the marsh grass of Parnassus, northern grass-of-Parnassus, or just grass-of-Parnassus, and bog star, is a flowering plant in the staff-vine family Celastraceae. It is the county flower of Cumberland in England, and appears on its flag.

Key takeaways

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

Reference excerpt

Parnassia palustris, the marsh grass of Parnassus, northern grass-of-Parnassus, or just grass-of-Parnassus, and bog star, is a flowering plant in the staff-vine family Celastraceae. It is the county flower of Cumberland in England, and appears on its flag. The name comes from ancient Greece: evidently the cattle on Mount Parnassus appreciated the plant; hence it was an "honorary grass". The specific epithet palustris is Latin for "of the marsh" and indicates its common habitat. It was described by the Greek physician Dioscorides, growing up a mountain in 1st century AD.

Description This perennial plant is not a grass, nor does it look like one, but grows from a short underground stem. It has long stemmed heart-shaped leaves, which are 4–12 in (10–30 cm) long. In the centre of the leaf, is the flowering stem. The stem holds a solitary white flower, blooming between July and October. The flower has 5 stamens around the centre. The flower produces a honey-like scent to attract pollinators.

Range and distribution Parnassia palustris is native to northern temperate parts of Eurasia where it is found in wet moorlands and marshes. It is now extinct in Algeria.

Varieties Three varieties are accepted.

Parnassia palustris var. izuinsularis H.Ohba – Izu Islands Parnassia palustris var. palustris – northern temperate and montane Eurasia and North America Parnassia palustris var. yakusimensis (Masam.) H.Ohba – Yakushima Island

Uses

It was once used in herbal medicines, to treat disorders of the liver. An infusion of the leaves, (similar to a tea) was also used to treat indigestion. When added to wine or water, the leaves are claimed to dissolve kidney stones. It is also seen in the Cumberland flag, which is a historic English county and is within County Cumbria.

History While finishing his schooling in the School of Mines at Freiberg from June 14, 1791, to February 26, 1792, Alexander von Humboldt published three articles on plants in the Annalen der Botanik. These were his first of what the world famous explorer would produce. Notably, one was concerning "On the Motion of the Filaments of the Parnassia Palustris."

References

External links Media related to Parnassia palustris at Wikimedia Commons

Illustrations

Worked examples

Example 1 — a first encounter with Parnassia palustris

Start with the simplest possible case. Write down what Parnassia palustris 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 Parnassia palustris 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 Parnassia palustris 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 Parnassia palustris

In research: Parnassia palustris 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 Parnassia palustris 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: Parnassia palustris is common in secondary-school and first-year university syllabi. It links to neighbouring topics Botanical taxa named by Carl Linnaeus, Flora of Afghanistan, Flora of Alaska, so understanding it makes those chapters shorter.
In everyday life: Look for Parnassia palustris 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 Parnassia palustris in 20 minutes

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

Frequently asked questions

What is Parnassia palustris in simple terms?

Why does Parnassia palustris 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 Parnassia palustris?

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 Parnassia palustris.