biology

Lycopodium annotinum

Lycopodium annotinum 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 Lycopodium annotinum rather than just read about it. In short: Spinulum annotinum, synonym Lycopodium annotinum, known as interrupted club-moss, or stiff clubmoss, is a species of clubmoss native to forests of the colder parts of North America (Greenland, Saint Pierre and Miquelon, all 10 provinces and all 3 territories of Canada, Alaska, and mountains of the contiguous United States), as well as Asia (China, Russia, Japan, Korea, Nepal, Assam), and most of Europe. It is an eve…

Key takeaways

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

Reference excerpt

Spinulum annotinum, synonym Lycopodium annotinum, known as interrupted club-moss, or stiff clubmoss, is a species of clubmoss native to forests of the colder parts of North America (Greenland, Saint Pierre and Miquelon, all 10 provinces and all 3 territories of Canada, Alaska, and mountains of the contiguous United States), as well as Asia (China, Russia, Japan, Korea, Nepal, Assam), and most of Europe. It is an evergreen perennial pteridophyte. The genus Spinulum is accepted in the Pteridophyte Phylogeny Group classification of 2016 (PPG I), but not in other classifications, which submerge the genus in Lycopodium.

Description Spinulum annotinum is a common and widespread club-moss spreading by means of horizontal stems running along the surface of the ground. It is usually unbranched or sparingly branched, each branch containing a cone at the top. Leaves have minute teeth on their edges. The branches are 5–25 cm (2–10 in) long, upright and somewhat branchless themselves. The sporangium are located at the top of the branches in individually located spore cones.

Uses In Finnish traditional medicine Spinulum annotinum has been used as a remedy for rickets. The plant's spore dust has also been used as medicine for rashes and inflammation. The spore dust or lycopodium powder has also been used as 'fly gunpowder' (kärpäsruuti in Finnish) due to the oily and easily flammable nature of the spores.

The plant has been used as decoration in binding crafts in Finland.

Alkaloids Four alkaloids were found to be present in Lycopodium annotinum. These include: Annofoline, Lycofoline, α-Lofoline and β-Lofoline (fawcettiine). Lycodine is another example of such an alkaloid.

References

External links Photo of herbarium specimen at Missouri Botanical Garden, collected on Mt. Adams in New Hampshire in 1889, neotype of Lycopodium annotinum Go Botany, New England Wildflower Society, Spinulum annotinum (L.) A. Haines bristly clubmoss, common interrupted-clubmoss] photos plus New England distribution map Michigan Flora, Spinulum annotinum (L.) A. Haines photos plus Michigan distribution map Digital Atlas of the Virginia Flora, Spinulum annotinum (L.) A. Haines photos plus Virginia distribution map Boreal Forest, Lycopodium annotinum Stiff Clubmoss description, photos, ecological information West Highland (Scotland) Flora, Interrupted Clubmoss, Lycopodium annotinum photos from near Skye in Scotland

Illustrations

Worked examples

Example 1 — a first encounter with Lycopodium annotinum

Start with the simplest possible case. Write down what Lycopodium annotinum 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 Lycopodium annotinum 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 Lycopodium annotinum 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 Lycopodium annotinum

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

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

Frequently asked questions

What is Lycopodium annotinum in simple terms?

Why does Lycopodium annotinum 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 Lycopodium annotinum?

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 Lycopodium annotinum.