ArticleslgStudy

science

Sambucus racemosa

Sambucus racemosa 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 Sambucus racemosa rather than just read about it. In short: Sambucus racemosa is a species of elder known by the common names red-berried elder and red elderberry. It produces a red drupe.

Sambucus racemosa — main illustration
Sambucus racemosa — illustration

Key takeaways

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

Reference excerpt

Sambucus racemosa is a species of elder known by the common names red-berried elder and red elderberry. It produces a red drupe. The species is native across much of the Northern Hemisphere. The plant is largely poisonous when raw, but the fruit can be cooked for consumption.

Description Sambucus racemosa is medium-sized shrub growing 2–4 m (7–13 ft) (rarely 6 m (20 ft)) tall. The stems are soft, with a broad pith. Each individual leaf is composed of 5 to 7 leaflike leaflets, each of which is up to 4–8 cm (1+1⁄2–3+1⁄4 in) (rarely to 16 cm (6+1⁄4 in)) long, lance-shaped to narrowly oval, and irregularly serrated along the edges. The leaflets have a strong disagreeable scent when crushed.

The inflorescence is a vaguely cone-shaped panicle 3–6 cm (1+1⁄4–2+1⁄4 in) diameter, consisting of several cymes of flowers and produced on the ends of stem branches. The flower buds are pink when closed, and the open flowers are white, cream, or yellowish. Each flower has small, recurved petals and a star-shaped axis of five white stamens tipped in yellow anthers. The flowers are fragrant and visited by flies (particularly hoverflies), hummingbirds and butterflies. The fruit is a bright red drupe (to purple-black in var. melanocarpa) containing 3 to 5 seeds. It is eaten by birds, which disperse the seeds in their droppings. Its fruit persists for an average of 42.5 days, and bears an average of 3.0 seeds per fruit. Fruits average 88.0% water, and their dry weight includes 8.3% carbohydrates and 9.0% lipids, which is one of the highest lipid values among European fleshy fruits.

Varieties and subspecies Sambucus racemosa var. melanocarpa — Rocky Mountain elder, native to the Western United States and Western Canada, including the Rocky Mountains and Sierra Nevada. Sambucus racemosa var. microbotrys (Rydb.) Kearney & Peebles – Southwestern United States Sambucus racemosa subsp. pubens — American red elder, native to North America Sambucus racemosa subsp. racemosa — European red-berried elder. Other subspecies formerly included in S. racemosa include S. racemosa subsp. kamtschatica (now Sambucus kamtschatica), S. racemosa subsp. sibirica (now Sambucus sibirica), and S. racemosa subsp. sieboldiana (now Sambucus sieboldiana).

Distribution and habitat It is native to Europe, northern temperate Asia, and North America across Canada and the United States. It grows in riparian environments, woodlands, and other habitats, generally in moist areas.

Cultivation Sambucus racemosa is cultivated as an ornamental plant, for use as a shrub or small tree in traditional and wildlife gardens, and natural landscape design projects. The yellow-foliaged cultivars 'Plumosa Aurea' and 'Sutherland Gold' are widely grown in Britain.

Cultivars Cultivars in the nursery trade include:

Sambucus racemosa 'SMNSRD4' Lemony Lace® — golden green foliage, with red new growth Sambucus racemosa 'Sutherland Gold' — green foliage, with bronze new growth: it has received the Royal Horticultural Society's Award of Garden Merit.

Toxicity The stems, roots and foliage are poisonous, and the fruit can be toxic or cause nausea if eaten raw.

Uses Although potentially poisonous when raw, the berries are reportedly safe to eat when cooked. They were cooked in a variety of recipes by indigenous peoples. The plant has been used as a traditional medicine by North American aboriginal people. The Ahousaht use the timing of red elderberry bloom as an indicator to begin halibut fishing and hunting of gray whales and harbor seals.

Images

References

Bibliography Ehrlén, Johan; Eriksson, Ove (1991). "Phenological variation in fruit characteristics in vertebrate-dispersed plants". Oecologia. 86 (4): 463–470. Bibcode:1991Oecol..86..463E. doi:10.1007/BF00318311. ISSN 0029-8549. PMID 28313326.

External links

Calflora Jepson eFlora, The Jepson Herbarium, University of California, Berkeley "Taxon Sambucus racemosa profile". Burke Museum. Herbarium. University of Washington. Sambucus racemosa in the CalPhotos photo database, University of California, Berkeley

Illustrations

Sambucus racemosa illustration
Sambucus racemosa illustration
Sambucus racemosa: Inflorescence and foliage
Inflorescence and foliage
Sambucus racemosa illustration
Sambucus racemosa illustration

Worked examples

Example 1 — a first encounter with Sambucus racemosa

Start with the simplest possible case. Write down what Sambucus racemosa 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 Sambucus racemosa 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 Sambucus racemosa 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 Sambucus racemosa

In research
Sambucus racemosa 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 Sambucus racemosa 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
Sambucus racemosa is common in secondary-school and first-year university syllabi. It links to neighbouring topics Berries, Bird food plants, Botanical taxa named by Carl Linnaeus, so understanding it makes those chapters shorter.
In everyday life
Look for Sambucus racemosa 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.
Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Sambucus racemosa” →

Affiliate

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

How to study Sambucus racemosa in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Sambucus racemosa means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Sambucus racemosa out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sambucus racemosa in simple terms?

Sambucus racemosa is a species of elder known by the common names red-berried elder and red elderberry. It produces a red drupe.

Why does Sambucus racemosa 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 Sambucus racemosa?

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 Sambucus racemosa.

Tags

  • Berries
  • Bird food plants
  • Botanical taxa named by Carl Linnaeus
  • Butterfly food plants
  • Edible plants
  • Flora of California
  • Flora of Canada
  • Flora of Europe
  • Flora of temperate Asia
  • Flora of the Eastern United States
  • Flora of the Western United States
  • Garden plants

Keep exploring