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Sclerocarya birrea

Marula

Generally recognised as safe

Other names: Jelly plum

A southern African tree with yellow fruits rich in vitamin C.

A deciduous tree of open savannas with greyish bark and alternate leaves; the golden-yellow fruits have a juicy tangy flesh and a hard stone with oil-rich kernels.

Family
Anacardiaceae
Plant type
Deciduous tree
What the safety levels mean (expand legend)
  • Generally recognised as safe. Often a common herb with reasonable harvest and use; still read the specific warnings on the card.
  • Information. Primarily informational — details in the text and warnings below matter most.
  • Caution. Needs extra care (dose, duration, sensitive groups, interactions).
  • Risky. Significant risks — verify sources, contraindications and professional guidance.
  • Not for home experimentation. Not suitable to experiment with at home without knowledge and certainty.
  • High risk for internal use. Particular risk with internal use (e.g. alkaloids); avoid prolonged or irresponsible dosing.
  • Not specified. Level not filled in yet — rely on individual warnings and links below.
Marula — plant habitus (Wikimedia Commons).

Photograph on Wikimedia Commons (Public domain).

Plant habit

Quick overview

A practical summary; details are in the sections below.

Safety grade
Generally recognised as safe details
Scientific sources on the card
Yes — sources are listed with claims Science section
When and what to harvest
  • Fruit — January–March
Full harvest section
Processing methods

Culinary use, Fermentation, Herbal liqueur, Herbal oil and more

All methods and recipes on the card
Topics and symptoms

Ancestors and memory, Complexion and local blemishes, Digestion…

Topics section, Symptoms overview

Identification and mix-ups

Medium to large deciduous tree in Anacardiaceae, single-stemmed, with a broad spreading crown, to 18 m. Bark grey, mottled, peeling in flat round discs that expose light-yellow tissue. Leaves alternate, imparipinnate, turning golden in autumn. The plant is dioecious; flowers small, whitish-purple to red. Fruit yellow, round to egg-shaped 2.5–5 cm, with juicy flesh around a hard stone.

Possible mix-ups and risks

No toxic lookalike is well-documented — the combination of peeling disc-like bark, pinnate leaves, dioecious habit and plum-like yellow fruit is fairly distinctive. Note: the southern African marula is subspecies caffra (POWO places it under subspecies afra).

Similar herbs

No related herbs are linked yet.

Topics and symptoms

More topics are in the symptoms and topics overview.

Sources

Geographic occurrence

  • South Africa

    Common (expected wild occurrence in the region)

Harvest

  • FruitJanuary–March

    summer

    Region: South Africa

    Notes: Fallen ripe fruits in early spring (southern hemisphere).

Storage

  • Refrigeration(Fruit)

    Fresh fruit ripens after falling and lasts only a few days; the pulp is frozen or processed at once into juice, jam and beer. The kernel oil, high in oleic acid, is stable for 2 years.

    Light:
    Oil in a dark bottle.
    Moisture:
    Kernels mould in damp — dry fully and seal.

Processing methods on this herb card

  • Culinary use(Fruit)Suitability: High suitability

    Cooking, baking, seasoning as food — general category without therapeutic claims.

    Full method description (from the catalogue)

    Culinary use covers herbs as ingredients in dishes, drinks, or spice mixes. This overview does not evaluate medicinal effects — only reminds you about species intent, allergies, and heat treatment where needed (e.g. some fruits or plant parts).

    Combining with alcohol, sugar, or long cooking changes outcomes; verify culinary sources.

    Traditional context for this method: yes·Scientific context for this method: no

    Marula juice

    About 30 minBeginnerScience profile

    Open recipe →

  • Fermentation(Fruit)Suitability: High suitability

    Microbial processing (fermentation) of plant material for drinks or foods.

    Full method description (from the catalogue)

    Fermentation changes sugars, flavour, and microbial composition (e.g. herbal ferments, oxymels combining honey and vinegar per tradition). Hygiene, temperature, and time are critical for a safe outcome.

    Home ferments should not smell "rotten"; when in doubt, discard.

    Traditional context for this method: yes·Scientific context for this method: no

  • Herbal liqueur(Fruit)Suitability: High suitability

    Sweet alcoholic macerate with herbs; sugar and ethanol drive the outcome.

    Full method description (from the catalogue)

    A liqueur combines herbs, spirit, and sweetener into a strongly aromatic mixture. Home batches differ from commercial products in law and in how strength is controlled.

    Follow the recipe for dosing and storage; maceration time changes colour and flavour.

    Traditional context for this method: yes·Scientific context for this method: no

  • Herbal oil(Fruit)Suitability: Medium suitability

    Macerating herbs in a vegetable oil (cold or with gentle heat).

    Full method description (from the catalogue)

    Herbal oil is made by steeping dried or fresh material in oil (e.g. olive, sunflower) over time, sometimes with gentle warming. The result is not steam-distilled essential oil — it is a different extract type and usage (often topical or culinary per recipe).

    Temperature, light, and material moisture affect shelf life; rancid oil must be discarded.

    Traditional context for this method: yes·Scientific context for this method: no

  • Decoction(Bark)Suitability: Low suitability

    Longer simmering of plant material in water.

    Full method description (from the catalogue)

    A decoction is made by simmering plant material in water — often around 10–20 minutes depending on tradition and plant part. Denser parts (roots, bark, some seeds) are often prepared more reliably this way than with a short infusion.

    Compared with an infusion it can extract more compounds, but also more tannins or bitterness; the flavour profile differs from a delicate tea. Combine this overview with the herb card for suitable plant part and contraindications.

    Traditional context for this method: yes·Scientific context for this method: no

Traditional / spiritual use

Kept separate from science — entries are cultural or symbolic, not medical advice.

  • The marriage tree and beer for the ancestors

    Symbolism

    Spiritual useFolk useRitualSymbolism

    Among the Venda, Zulu and Swazi the marula is the 'marriage tree' and a symbol of fertility; it is not felled, and family ceremonies take place beneath it. When the first fruit ripens in February and March the ukanyi festival begins (buganu among the Swazi): the first batch of marula beer is offered to the ancestors and to the chief or queen mother, and only then may the others drink. Tradition has it that elephants get drunk on the fruit — in fact they eat far too little of it. A record of ritual and symbolism.

    Form:
    wedding tree, first-fruits festival (ukanyi, buganu)
    Claim strength:
    Tradition
    Source note:
    Mariod AA, Abdelwahab SI (2012), Food Rev Int 28:375–388 (cultural introduction); SANBI PlantZAfrica — Sclerocarya birrea (cultural notes).

Scientific notes

Each claim lists a study type and a source (URL or DOI) where available. Dose notes from the literature are informational only.

How to read evidence strength and study type labels

Labels summarise how the catalogue entry is tagged — they are not a medical verdict on efficacy. For every row, read the summary, limitations and source link.

Evidence strength

Evidence level not specified
The author did not grade the record; judge from the summary, limitations and source link.
Narrative / orientational literature
Descriptive or expert literature without controlled group comparison — context rather than proof of effect.
Weak evidence
Study or conclusion with major methodological limits; treat only as a pointer for further reading.
Preliminary findings
First or smaller studies — interesting direction, not the final word on efficacy or safety.
Moderate strength of evidence
Moderate strength by study design; sample and context limits still apply.
Stronger evidence
Stronger design or consistency of results within the study's stated limits.
Review article
A review summarises multiple sources; quality depends on review method and field.

Study type

Narrative / expert text
Expert text or overview without a classical study design.
In vitro study
Cell culture or test-tube experiment — does not show an effect in the body.
Animal study
Animal model — transfer to humans is not automatic.
Observational study
Observing groups without random treatment assignment; confounding is possible.
Clinical trial
Human clinical trial; sample size and control group matter.
Randomised controlled trial
Randomised controlled trials are among the stronger designs when well conducted.
Review study
A review aggregates multiple papers — quality depends on selection rules.
Systematic review
Systematic review with explicit search and selection methodology.
Meta-analysis
Statistical pooling of studies; outcome depends on input data and heterogeneity.
Regulatory assessment / monograph (EMA, WHO…)
Regulatory body summary for a herbal product — different context from a single RCT; often about products, not home tea.
Expert monograph (herbal preparations)
Structured literature summary for a plant or drug — quality depends on author and edition year.

Images

The main photo is in the card header. More images will appear here when available.

Safety

What the warning types mean

The type on each warning helps group themes — it does not replace the separate severity badge.

Internal use
Risks from swallowing, extracts, duration of use or concentration for internal use.
Interactions / medicines
Possible effect on medicines or concurrent treatment — check sources and a professional.
Raw plant parts
Raw, unripe or poorly prepared plant parts can be dangerous.
Toxins and regulation
Toxic constituents or regulated compounds (e.g. in distillates).
Contact with the plant
Skin or mucosa irritation from contact with fresh plant or sap.
Allergy
Allergic reactions, often linked to family sensitisation.
Harvesting and contamination
Contamination, species mix-ups or harvesting from unsuitable places.
  • Cashew family allergyLow severityAllergy

    Marula is in the same family as cashew and mango; cross-reactivity is possible in people with related allergies.