science

Salicaceae

Salicaceae 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 Salicaceae rather than just read about it. In short: The Salicaceae are the willow family of flowering plants. The traditional family (Salicaceae sensu stricto) includes the willows and poplars.

Key takeaways

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

Reference excerpt

The Salicaceae are the willow family of flowering plants. The traditional family (Salicaceae sensu stricto) includes the willows and poplars. Genetic studies summarized by the Angiosperm Phylogeny Group (APG) have greatly expanded the circumscription of the family to contain 56 genera and about 1220 species, including the tropical Scyphostegiaceae and many of the former Flacourtiaceae. In the Cronquist system, the Salicaceae were assigned to their own order, Salicales, and contained three genera, Salix, Populus, and Chosenia (now a synonym of Salix). Recognized to be closely related to the Violaceae and Passifloraceae, the family is placed by the APG in the order Malpighiales. Under the new circumscription, most members of the family are trees or shrubs that have simple leaves with alternate arrangement, and temperate members are usually deciduous. Most members have serrate or dentate leaf margins, and many of those that have such toothed margins exhibit salicoid teeth, a salicoid tooth being one in which a vein enters the tooth, expands, and terminates at or near the apex, near which are spherical and glandular protuberances called setae. Sometimes the glands will deflate and appear torus (doughnut) shaped. Some members of the family exhibit violoid or theoid teeth, characters along with presence of an aril and introrse anther dehiscence that are sometimes used to split the family into three families, Salicaceae sensu medio, Samydaceae, and Scyphostegiaceae. Members of the family often have flowers which are reduced and inconspicuous, and all have ovaries that are superior or half-inferior with parietal placentation.

Genera by subfamily and tribe Salicaceae are divided into three subfamilies, with Salicoideae further divided into seven tribes. Several of these tribes are not monophyletic and await further revision.

Salicoideae

Samydoideae

Scyphostegioideae Dianyuea C. Shang et al. Scyphostegia Stapf

Incertae sedis †Saxifragispermum Reid & Chandler †Utkholokia (Cheleb.) Iljinskaja & Chelb.

References

External links Media related to Salicaceae at Wikimedia Commons Data related to Salicaceae at Wikispecies

Illustrations

Salicaceae: Illustration of a typical salicoid tooth, the yellow area showing the expanding leaf vein and glandular seta. — Illustration of a typical salicoid tooth, the yellow area showing the expanding leaf vein and glandular seta.

Worked examples

Example 1 — a first encounter with Salicaceae

Start with the simplest possible case. Write down what Salicaceae 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 Salicaceae 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 Salicaceae 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 Salicaceae

In research: Salicaceae 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 Salicaceae 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: Salicaceae is common in secondary-school and first-year university syllabi. It links to neighbouring topics Malpighiales families, Salicaceae, so understanding it makes those chapters shorter.
In everyday life: Look for Salicaceae 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 Salicaceae in 20 minutes

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

Frequently asked questions

What is Salicaceae in simple terms?

The Salicaceae are the willow family of flowering plants. The traditional family (Salicaceae sensu stricto) includes the willows and poplars.

Why does Salicaceae 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 Salicaceae?

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 Salicaceae.