Plant Profile

Clove

Syzygium aromaticum
Family: Myrtaceae  ·  Parts used: Flower, Leaf, Stem  ·  Also known as: Clove bud, aromatic clove

The complete database record: 3 documented constituents, 6 pharmacological actions, 12 traditional / indicated uses, with 15 cited sources.

Botanical Description

Evergreen tree (Myrtaceae), 8-12 m tall (occasionally to 20 m), with a pyramidal crown. Leaves are glossy, elliptical and aromatic. Small crimson flowers are borne in terminal clusters; the unopened flower buds, picked before they open and dried, are the 'cloves' of commerce and the medicinal/culinary part used.[2]

Height: 8-12 m (occasionally to 20 m)
Habit: Evergreen tree with a pyramidal crown
Leaves: Glossy, elliptical, aromatic
Flowers: Small, crimson, in terminal clusters; unopened buds are the harvested cloves
Stem: Woody, branching
Root: Deep woody root system
Fruit: Small drupe ("mother clove"), less commonly harvested than the flower bud
Flowering Period: Variable, often twice a year in tropical climates

Habitat & Distribution

Native to the Maluku Islands (Moluccas, the historic 'Spice Islands') of Indonesia, now cultivated throughout the tropics, notably Zanzibar, Madagascar, Sri Lanka and Indonesia, in warm, humid, well-drained tropical conditions.[2]

Harvesting

Unopened flower buds are hand-picked while still green-pink, just before they would open, then sun-dried until they turn dark reddish-brown - the familiar clove spice.[2]

Parts: Flower
Season: Before the flower buds open

Key Constituents

Essential oil (eugenol)[1, 2]

Eugenol typically makes up the great majority of clove oil and is responsible for most of its analgesic, antimicrobial and anti-inflammatory activity.

Essential (volatile) oilEugenol
Flavonoids and phenolic acids[3]

Contribute additional antioxidant activity.

FlavonoidsPhenolic acids
Tannins[2]

Contribute mild astringency.

Tannins

Pharmacological Actions

Analgesic (pain relief)[2, 12, 13, 14]
Anti-inflammatory[2, 3, 8, 12, 13, 14]
Anticancer (preclinical)[10]
Antimicrobial[1, 2, 3, 5, 7, 12, 13, 14]
Antioxidant[1, 2, 4, 6, 7, 12, 13, 14]
Digestive aid[9, 12, 13, 14]

Traditional & Indicated Uses

Arthritis / joint pain[8, 12, 13, 14]Preliminary · 2/10

inferred from anti-inflammatory action

Evidence: 2
Label: Arthritis / joint pain

more plants for arthritis / joint pain →detailed sources →

Back pain[12, 13, 14]Preliminary · 1/10

inferred from analgesic action

Evidence: 1
Label: Back pain

more plants for back pain →detailed sources →

Bloating[12, 13, 14]Preliminary · 1/10

inferred from digestive action

Evidence: 1
Label: Bloating

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Cancer (anticancer research)[10]Preliminary · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)

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Headache[12, 13, 14]Preliminary · 1/10

inferred from analgesic action

Evidence: 1
Label: Headache

more plants for headache →detailed sources →

Indigestion[12, 13, 14]Preliminary · 1/10

inferred from digestive action

Evidence: 1
Label: Indigestion

more plants for indigestion →detailed sources →

Infection (general)[5, 12, 13, 14]Preliminary · 2/10

inferred from antimicrobial action

Evidence: 2
Label: Infection (general)

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Inflammation (general)[12, 13, 14]Preliminary · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Inflammation (general)

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Oral & throat health[12, 13, 14]Preliminary · 1/10
Evidence: 1
Label: Oral & throat health

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Pain (general)[12, 13, 14]Preliminary · 1/10
Evidence: 1
Label: Pain (general)

more plants for pain (general) →detailed sources →

Skin irritation[12, 13, 14]Preliminary · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation

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Wounds[12, 13, 14]Preliminary · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds

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Traditional Use & History

Clove has an ancient trade history and a long traditional use across Asian, African and European medicine as a dental analgesic (chewed or applied as oil for toothache), a digestive carminative, and an antiseptic. Modern research on its principal constituent eugenol supports strong analgesic, antimicrobial, antioxidant and anti-inflammatory activity, with clove oil remaining a recognised topical dental-pain remedy.[2]

Preparations

Whole clove (culinary/chewed)[2]

Whole dried flower buds chewed or infused for digestive and dental use.

Clove oil (topical, diluted)[12, 13, 14]

The classic dental-pain remedy, applied to the affected tooth/gum, always diluted.

Dosage

Clove oil / powder[12, 13, 14]

Duke (2002): a 1-5% clove oil preparation topically, or about 150 mg clove powder internally. Educational reference only, not a prescription; never apply undiluted oil to skin or mucous membranes.

Safety, Cautions & Contraindications

Safety note[12, 13, 14]Caution

Strong and concentrated: Clove oil is very potent and should always be diluted before skin or mouth use.Dental use: Undiluted clove oil can burn gums or skin.Blood thinning: Clove may increase bleeding risk in large amounts or with anticoagulants.Pregnancy: Culinary amounts are fine; medicinal doses should be used cautiously.Children: Essential oil should be used with extra caution and diluted well.

Safety note[12, 13, 14, 15]Caution

Duke (2002) rates cloves as +++ with clinical evidence (score 2) for analgesic activity - specifically, topical application of clove oil (eugenol) for dental pain is clinically validated. The plant also shows strong antimicrobial, antifungal (anti-Candida), antispasmodic, and antiviral activities at the experimental level. Commission E approves topical clove preparations for dental pain. Recommended dose: 1–5% clove oil preparation (topical) or 150 mg clove powder internally. The essential oil is irritating to mucous membranes and should not be applied undiluted to skin or mucous membranes (Duke, 2002).

Harvest Readiness

[11]

Part: flower
Signals: Pick the unopened young flower buds, before they open into flowers - the buds are dried to make cloves.
Basis: traditional
Source Quote: Young flowers, which are dried to make cloves
Species Confirmed: 1
Notes: Useful Tropical Plants / Ken Fern (REF-3345); the clove is the immature (unopened) flower bud, picked before it opens. Single source -> provisional. (Leaf and stem, also listed parts, yield clove oils but were not separately timing-sourced this pass.)

External Identifiers

References & Sources

  1. Haro-Gonzalez, J.N., Castillo-Herrera, G.A., Martinez-Velazquez, M. and Espinosa-Andrews, H (2021) 'Clove Essential Oil (Syzygium aromaticum L. Myrtaceae): Extraction, Chemical Composition, Food Applications, and Essential Bioactivity for Human Health', Molecules, 26(21), pp. 6387. doi:10.3390/molecules26216387 Meta-analysis / review
    https://doi.org/10.3390/molecules26216387
  2. Batiha, G.E., Alkazmi, L.M., Wasef, L.G., Beshbishy, A.M. and others (2020) 'Syzygium aromaticum L. (Myrtaceae): Traditional Uses, Bioactive Chemical Constituents, Pharmacological and Toxicological Activities', Biomolecules, 10(2), pp. 202. doi:10.3390/biom10020202 Meta-analysis / review
    https://doi.org/10.3390/biom10020202
  3. Vicidomini, C., Roviello, V. and Roviello, G.N (2021) 'Molecular Basis of the Therapeutical Potential of Clove (Syzygium aromaticum L.) and Clues to Its Anti-COVID-19 Utility', Molecules, 26(7), pp. 1880. doi:10.3390/molecules26071880 Meta-analysis / review
    https://doi.org/10.3390/molecules26071880
  4. Irahal, I.N., Guenaou, I., Lahlou, F.A., Hmimid, F. and others (2022) 'Syzygium aromaticum bud (clove) essential oil is a novel and safe aldose reductase inhibitor: in silico, in vitro, and in vivo evidence', Hormones (Athens), 21(2), pp. 229-240. doi:10.1007/s42000-021-00347-6 Preclinical
    https://doi.org/10.1007/s42000-021-00347-6
  5. Yassin, M.T., Mostafa, A.A. and Al-Askar, A.A (2020) 'In vitro anticandidal potency of Syzygium aromaticum (clove) extracts against vaginal candidiasis', BMC Complementary Medicine and Therapies, 20(1), pp. 25. doi:10.1186/s12906-020-2818-8 Preclinical
    https://doi.org/10.1186/s12906-020-2818-8
  6. Kiki, M.J (2023) 'In Vitro Antiviral Potential, Antioxidant, and Chemical Composition of Clove (Syzygium aromaticum) Essential Oil', Molecules, 28(6), pp. 2421. doi:10.3390/molecules28062421 Preclinical
    https://doi.org/10.3390/molecules28062421
  7. Radunz, M., da Trindade, M.L.M., Camargo, T.M., Radunz, A.L. and others (2019) 'Antimicrobial and antioxidant activity of unencapsulated and encapsulated clove (Syzygium aromaticum, L.) essential oil', Food Chemistry, 276, pp. 180-186. doi:10.1016/j.foodchem.2018.09.173 Preclinical
    https://doi.org/10.1016/j.foodchem.2018.09.173
  8. Shakeel, F., Alam, P., Ali, A., Alqarni, M.H. and others (2021) 'Investigating Antiarthritic Potential of Nanostructured Clove Oil (Syzygium aromaticum) in FCA-Induced Arthritic Rats: Pharmaceutical Action and Delivery Strategies', Molecules, 26(23), pp. 7327. doi:10.3390/molecules26237327 Preclinical
    https://doi.org/10.3390/molecules26237327
  9. Tu, Z., Moss-Pierce, T., Ford, P. and Jiang, T.A (2014) 'Syzygium aromaticum L. (Clove) extract regulates energy metabolism in myocytes', Journal of Medicinal Food, 17(9), pp. 1003-1010. doi:10.1089/jmf.2013.0175 Preclinical
    https://doi.org/10.1089/jmf.2013.0175
  10. Banerjee, S., Panda, C.K. and Das, S (2006) 'Clove (Syzygium aromaticum L.), a potential chemopreventive agent for lung cancer', Carcinogenesis, 27(8), pp. 1645-1654. doi:10.1093/carcin/bgi372 Preclinical
    https://doi.org/10.1093/carcin/bgi372
  11. Fern, Ken 'Syzygium aromaticum (Useful Tropical Plants)'. Available at: https://tropical.theferns.info/viewtropical.php?id=Syzygium+aromaticum Traditional / reference
    https://tropical.theferns.info/viewtropical.php?id=Syzygium+aromaticum
  12. Bhowmik, D., Kumar, K.P.S., Yadav, A., Srivastava, S., Paswan, S. and Dutta, A.S (2012) 'Recent trends in Indian traditional herbs Syzygium aromaticum and its health benefits', 1(1), pp. 13--23. Traditional / reference
    https://scholar.google.com/scholar?q=Recent%20trends%20in%20Indian%20traditional%20herbs%20Syzygium%20aromaticum%20and%20its%20health%20benefits
  13. Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
    https://powo.science.kew.org
  14. World Health Organization (2002) 'WHO Monographs on Selected Medicinal Plants'. Traditional / reference
    https://scholar.google.com/scholar?q=WHO%20Monographs%20on%20Selected%20Medicinal%20Plants
  15. Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition

This fact sheet is generated automatically from the Omnia Sana plant database and reflects its latest synced data. It is provided for educational purposes only and is not medical advice. How this site is built.

Selected studies & references

Educational use only. This profile summarises traditional and scientific sources for reference. It is not medical advice and not a substitute for a qualified practitioner. Some plants carry safety cautions and drug interactions - always check before use.
This profile is assembled automatically from the Omnia Sana plant database, which we curate by hand. How this site is built.
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