science

Robinioids

Robinioids 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 Robinioids rather than just read about it. In short: The robinioids are one of the four major clades (along with the genisitoids, dalbergioids and millettioids) in subfamily Faboideae of the plant family Fabaceae (Leguminosae). It is composed of the traditional tribes Loteae, Sesbanieae and Robinieae.

Key takeaways

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

Reference excerpt

The robinioids are one of the four major clades (along with the genisitoids, dalbergioids and millettioids) in subfamily Faboideae of the plant family Fabaceae (Leguminosae). It is composed of the traditional tribes Loteae, Sesbanieae and Robinieae. It is a large and important clade that is distributed in mostly temperate areas. Species in this clade share a unique determinate root nodule structure. The clade is predicted to have diverged from the other legume lineages 48.3±1.0 million years ago (in the Eocene).

History Only two tribes (Loteae and Robinieae) were traditionally included in clade robinioids. Lavin & Schrire later included Sesbanieae into clade robinioids. Tribe Robinieae is primarily in tropical and arid temperate areas, containing mostly trees and shrubs of New World. Tribe Loteae are herbaceous and small shrubby legumes closely related with Old World tribe Galegeae. Loteae was originally a smaller group of legumes until later in 1994 Polhill merged Loteae and tribe Coronilleae and greatly expanded Loteae. Sesbanieae is a tribe with single genus Sesbania, which was originally placed under tribe Robinieae.

Systematics Loteae and Robinieae are traditionally grouped under clade robinioids: these two major groups are primarily found in Europe, North America, and South America. Sesbanieae was a group included in 2005. Monophyly: Monophyly of tribe Loteae: molecular data have shown support for monophyly with the exception for New World Lotus. Monophyly of Old World Lotus is moderately supported whereas New World Lotus is considered as paraphyletic. Monophyly of tribe Robinieae and Sesbanieae is strongly supported. Sesbanieae only has one genus Sesbania. Intratribal relationship: Sesbanieae is either sister to Loteae, or sister to the rest of clade robinioids.

References

Bibliography

Illustrations

Worked examples

Example 1 — a first encounter with Robinioids

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

In research: Robinioids 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 Robinioids 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: Robinioids is common in secondary-school and first-year university syllabi. It links to neighbouring topics Faboideae, Plant unranked clades, so understanding it makes those chapters shorter.
In everyday life: Look for Robinioids 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Robinioids in 20 minutes

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

Frequently asked questions

What is Robinioids in simple terms?

Why does Robinioids 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 Robinioids?

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 Robinioids.