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Botanical illustration: Greater burdock (Arctium lappa L.)

BOTANICAL ILLUSTRATION · ASTERACEAE

THE HERBARIUM · ASTERACEAE

Greater burdock

Arctium lappa L.

Documented uses concern the root and specific oral preparations.

Part used
Root
Origin & distribution
Distribution not detailed in the references consulted.

Fever, urinary pain or worsening symptoms: seek medical advice.

BOTANICAL IDENTITY

The right name is the first step.

Also known as: No synonyms listed.

The botanical name, part and preparation must match. A photograph is not enough for identification intended for consumption.

An illustration is not enough to identify a plant for consumption. Do not forage for a species based solely on this profile.

01 · UNDERSTAND

Properties & uses.

Traditional use

Urinary elimination

Traditional adjunctive use for minor urinary problems.

Read the source
Traditional use

Appetite and seborrheic skin

Traditional uses for temporary loss of appetite and seborrhoeic skin conditions; no promise of curing acne.

Read the source

The traditional uses described are not clinical proof of effectiveness. Evidence for one preparation cannot automatically be applied to another.

02 · UNDERSTAND THE ACTION

How does the plant act?

Burdock root has traditional urinary uses, uses for temporary loss of appetite and for certain seborrheic conditions. The terms “depurative” or “detox” do not describe a demonstrated mechanism. A major difficulty in the scientific dossier is the number of studies on seeds or isolated substances, while the monograph considered concerns the root.

Constituents to know.

Their presence and quantity depend on the plant part and preparation.

Inulin and other root constituents
The root contains inulin, among other constituents. The presence of this polysaccharide does not prove the three traditional uses of the whole preparation.Read the reference
Traditional use

Seborrheic skin

Traditional oral use is not proof of an antibiotic effect against acne or of “blood purification”.

Read the reference
Traditional use

Appetite and urinary elimination

These uses are historically documented, but the pharmacodynamic profile of the root remains incomplete.

Read the reference

What this means for preparation.

Checking the part used is particularly useful for burdock: a study of a seed does not document a root infusion. Reliable identification remains essential.

03 · EXAMINE THE EVIDENCE

What the research shows.

A laboratory or animal result alone does not demonstrate a benefit in humans. Each result must be read alongside the preparation studied and its limitations.

01Insufficient evidence

Do new data change the indications?

Type of research
EMA addendum examining 33 references considered relevant.
Preparation concerned
Root and its preparations; distinction from seeds and isolated constituents.
Observed results
The new references did not justify an indication for well-established use.
Limitations to consider
Preclinical research does not replace controlled trials on the root preparation actually used.
Read the reference

What can we take from this?

The dossier notes risks of root misidentification or adulteration. Controlled trials are lacking; no general efficacy against eczema, acne or a metabolic disease can be claimed.

Documentary review dated 09/10/2026. The references remain available to check the context.

04 · CHOOSE A PREPARATION

One plant, several preparations.

Only forms documented in this profile’s sources are presented.

InfusionRoot · Route: oral

Fragmented root.

Please note: Check the preparation and its leaflet; concentrations are not interchangeable.

Read the source
Powder or extractRoot · Route: oral

Defined preparations, not interchangeable.

Please note: Check the preparation and its leaflet; concentrations are not interchangeable.

Read the source

05 · BEFORE ANY USE

Precautions & contraindications.

This guidance does not cover every individual situation. Missing information is not a guarantee of safety.

Contraindications

  • Allergy to Asteraceae.

Medicine interactions

  • Avoid supplements combined with a diuretic without a pharmacist’s advice.

Adverse effects

  • This entry does not provide an exhaustive list of adverse effects.

Pregnancy & breastfeeding

Medicinal use is not recommended during pregnancy and breastfeeding due to insufficient data.

Children & adolescents

Not recommended under 18 years.

If symptoms persist, worsen or are unusual, consult a healthcare professional. In an emergency, contact the emergency services.

06 · PUTTING KNOWLEDGE INTO PRACTICE

Preparations & recipes.

No home recipe is provided in this profile. For an appropriate preparation, refer to the product leaflet and ask your pharmacist for advice.

07 · CHECK THE SOURCES

Sources for this profile.

  1. EMA — Arctii radix: official dossierAccessed on 09/10/2026
  2. EMA — monograph or public statement on Arctium lappaAccessed on 09/10/2026
  3. ANSES — precautions for plants in food supplements, June 2023 summaryAccessed on 09/10/2026
  4. EMA — assessment report on Arctium lappa L. (Root)Accessed on 09/10/2026
  5. EMA — addendum to the assessment report on Arctium lappa L. (Root)Accessed on 09/10/2026

Illustration: Christian Fischer · CC BY-SA 3.0. View the original image and its licence. Image resized and converted to WebP.

A TOUCH OF SOLÉA

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Myriam is reviewing the tip for this profile.

Myriam

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