Plant Profile

Cleavers

Galium aparine
Family: Rubiaceae  ·  Parts used: Leaf, Seed, Stem  ·  Also known as: clivers, goose grass/goosegrass, stickyweed, stickywilly, catchweed bedstraw

The complete database record: 3 documented constituents, 6 pharmacological actions, 9 traditional / indicated uses, with 16 cited sources.

Botanical Description

Scrambling, sprawling annual herb covered in tiny hooked bristles on its square stems, leaves and seed capsules, allowing it to cling to clothing, fur and neighbouring plants as it climbs ('stickyweed'). The leaves are narrow and lance-shaped, borne in whorls of six to eight. Tiny white, four-petalled flowers give way to small, round, bristly-hooked twin seed capsules ('goosegrass burrs').[6]

Height: Scrambling stems to 1-2 m, supported by other vegetation
Habit: Scrambling, sprawling annual herb, climbing by hooked bristles
Leaves: Narrow, lance-shaped, in whorls of 6-8, with hooked bristles on the margins
Flowers: Tiny, white, four-petalled
Stem: Square-sectioned, weak, covered in tiny hooked bristles
Root: Shallow, fibrous root system
Fruit: Small, round, bristly-hooked twin nutlet, clinging to fur and clothing
Flowering Period: May-September

Habitat & Distribution

A common scrambling weed of hedgerows, waste ground, gardens and field margins, climbing over other vegetation for support; native to Europe, Asia and North Africa and widely naturalised elsewhere.[6]

Harvesting

The whole aerial plant (leaf, stem and seed) is cut in spring to early summer, before the fruit fully hardens, and used fresh (as juice) or dried.

Parts: Leaf, Seed, Stem
Season: Spring to early summer

Key Constituents

Iridoid glycosides (asperuloside)[6]

Characteristic Rubiaceae iridoids shared with related bedstraws, contributing to the plant's traditional activity.

Iridoid glycosidesGlycosides
Flavonoids and phenolic acids[6]

Antioxidant constituents supporting the plant's antimicrobial and wound-healing activity.

FlavonoidsPhenolic acids
Tannins

Astringent constituents contributing to the traditional topical use for skin and wounds.

Tannins

Pharmacological Actions

Anticancer (preclinical)[8, 10]
Antimicrobial[6, 13, 14, 15]
Antioxidant[6, 9, 13, 14, 15]
Diuretic[13, 14, 15]
Emollient / skin-soothing[13, 14, 15]
Vulnerary (wound healing)[6, 11, 13, 14, 15]

Traditional & Indicated Uses

Bruising[13, 14, 15]Preliminary · 1/10

inferred from vulnerary action

Evidence: 1
Label: Bruising

more plants for bruising →detailed sources →

Cancer (anticancer research)[8, 10]Preliminary · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)

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Eczema[13, 14, 15]Preliminary · 1/10

inferred from emollient action

Evidence: 1
Label: Eczema

more plants for eczema →detailed sources →

Infection (general)[13, 14, 15]Preliminary · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Infection (general)

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Skin irritation[13, 14, 15]Preliminary · 1/10

inferred from emollient action

Evidence: 1
Label: Skin irritation

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Swelling / fluid retention[13, 14, 15]Preliminary · 1/10

inferred from diuretic action

Evidence: 1
Label: Swelling / fluid retention

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Urinary support[13, 14, 15]Preliminary · 1/10

inferred from diuretic action

Evidence: 1
Label: Urinary support

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Urinary tract infection (UTI)[13, 14, 15]Preliminary · 1/10

inferred from diuretic action

Evidence: 1
Label: Urinary tract infection (UTI)

more plants for urinary tract infection (uti) →detailed sources →

Wounds[13, 14, 15]Preliminary · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds

more plants for wounds →detailed sources →

Traditional Use & History

Cleavers has a long European folk history as a lymphatic and diuretic 'spring tonic' herb, traditionally used to support the urinary system and lymphatic drainage, and topically as a soothing, emollient wash or poultice for skin irritation, wounds and minor swellings.[6]

Preparations

Fresh juice[6]

Fresh aerial parts crushed or juiced, traditionally taken as a spring tonic or applied topically to skin irritation and wounds.

Poultice/wash[6]

Crushed fresh herb or a strained infusion applied topically as a wash or poultice for skin irritation and minor wounds.

Safety, Cautions & Contraindications

Safety note[13, 14, 15, 16]Caution

Duke (2002) describes cleavers as a diuretic, lymph tonic, and depurative with experimental support (score 1). The plant has been used in traditional medicine for swollen lymph nodes, urinary complaints, and skin conditions. Diuretic and anti-inflammatory activities are supported experimentally. No Commission E approval. Safety rating is ++ (relatively safe), with no known significant contraindications at usual herbal doses (Duke, 2002).

Harvest Readiness

[12]

Part: leaf
Signals: Gather the herb (leaf and stem) as it comes into flower, in late spring to early summer.
Basis: traditional
Source Quote: It is harvested in May and June as it comes into flower and can be used fresh or dried for later use.
Species Confirmed: 1
Notes: PFAF (REF-3260); the cleavers herb is gathered as it comes into flower (May-June). Single lineage -> provisional.

[12]

Part: stem
Signals: Gather the straggling stems with the leaf as the herb comes into flower, in late spring to early summer.
Basis: traditional
Source Quote: It is harvested in May and June as it comes into flower and can be used fresh or dried for later use.
Species Confirmed: 1
Notes: PFAF (REF-3260); the stems are gathered with the herb as it comes into flower. Single lineage -> provisional.

[12]

Part: seed
Signals: Collect the seeds (clinging burrs) when ripe in late summer to early autumn.
Basis: traditional
Source Quote: It is in flower from June to August, and the seeds ripen from August to September.
Species Confirmed: 1
Notes: PFAF (REF-3260); the seeds (roasted as a coffee substitute) ripen in late summer to early autumn. Single lineage -> provisional.

External Identifiers

References & Sources

  1. Laanet, P.R., Saar-Reismaa, P., Jõul, P., Bragina, O. and Vaher, M (2023) 'Phytochemical Screening and Antioxidant Activity of Selected Estonian Galium Species', Molecules, 28(6), pp. 2867. doi:10.3390/molecules28062867 Preclinical
    https://doi.org/10.3390/molecules28062867
  2. Antoniak, K., Studzińska-Sroka, E., Szymański, M., Dudek-Makuch, M. et al (2023) 'Antiangiogenic, Anti-Inflammatory and Antioxidant Properties of Bidens tripartita Herb, Galium verum Herb and Rumex hydrolapathum Root', Molecules, 28(13), pp. 4966. doi:10.3390/molecules28134966 Preclinical
    https://doi.org/10.3390/molecules28134966
  3. Razzivina, V., Vasiljeva, A., Kronberga, A., Skudrins, G. et al (2024) 'Phenolic Content and Anti-Inflammatory Activity of Cultivated and Wild-Type Galium odoratum Extracts in Murine Bone Marrow-Derived Macrophages', Antioxidants (Basel), 13(12), pp. 1447. doi:10.3390/antiox13121447 Preclinical
    https://doi.org/10.3390/antiox13121447
  4. Sahin, B., Karabulut, S., Filiz, A.K., Ozkaraca, M., Gezer, A. and Akpulat, H.A (2022) 'Galium aparine L. protects against acetaminophen-induced hepatotoxicity in rats', Chemico-Biological Interactions, 366, pp. 110119. doi:10.1016/j.cbi.2022.110119 Preclinical
    https://doi.org/10.1016/j.cbi.2022.110119
  5. Lee, S.Y., Park, S.Y. and Park, H.J (2024) 'Immuno-Enhancing Effects of Galium aparine L. in Cyclophosphamide-Induced Immunosuppressed Animal Models', Nutrients, 16(5), pp. 597. doi:10.3390/nu16050597 Preclinical
    https://doi.org/10.3390/nu16050597
  6. Beirami, A.D., Akhtari, N., Noroozi, R., Hatamabadi, D., Hasan, S.M.F. and Ayatollahi, S.A (2024) 'Bringing back Galium aparine L. from forgotten corners of traditional wound treatment procedures: an antimicrobial, antioxidant, and in-vitro wound healing assay along with HPTLC fingerprinting study', BMC Complementary Medicine and Therapies, 24(1), pp. 279. doi:10.1186/s12906-024-04355-y Preclinical
    https://doi.org/10.1186/s12906-024-04355-y
  7. Ilina, T., Kashpur, N., Granica, S., Bazylko, A., Shinkovenko, I. and Kovalyova, A (2019) 'Phytochemical Profiles and In Vitro Immunomodulatory Activity of Ethanolic Extracts from Galium aparine L', Plants, 8(12), pp. 541. doi:10.3390/plants8120541 Preclinical
    https://doi.org/10.3390/plants8120541
  8. Atmaca, H., Bozkurt, E., Cittan, M. and Dilek Tepe, H (2016) 'Effects of Galium aparine extract on the cell viability, cell cycle and cell death in breast cancer cell lines', Journal of Ethnopharmacology, 186, pp. 305-310. doi:10.1016/j.jep.2016.04.007 Preclinical
    https://doi.org/10.1016/j.jep.2016.04.007
  9. Bokhari, J., Khan, M.R., Shabbir, M., Rashid, U., Jan, S. and Zai, J.A (2012) 'Evaluation of diverse antioxidant activities of Galium aparine', Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 102, pp. 24-29. doi:10.1016/j.saa.2012.09.056 Preclinical
    https://doi.org/10.1016/j.saa.2012.09.056
  10. Shi, G., Liu, J., Zhao, W., Liu, Y. and Tian, X (2016) 'Separation and purification and in vitro anti-proliferative activity of leukemia cell K562 of Galium aparine L. petroleum ether phase', Saudi Pharmaceutical Journal, 24(3), pp. 241-247. doi:10.1016/j.jsps.2016.04.005 Preclinical
    https://doi.org/10.1016/j.jsps.2016.04.005
  11. Quinlan, F.J (1883) 'Galium Aparine as a Remedy for Chronic Ulcers', British Medical Journal, 1(1172), pp. 1173-1174. doi:10.1136/bmj.1.1172.1173 Traditional / reference
    https://doi.org/10.1136/bmj.1.1172.1173
  12. Plants For A Future 'Galium aparine (Cleavers, Goosegrass)'. Available at: https://pfaf.org/user/Plant.aspx?LatinName=Galium+aparine Traditional / reference
    https://pfaf.org/user/Plant.aspx?LatinName=Galium+aparine
  13. British Herbal Medicine Association (1983) 'British Herbal Pharmacopoeia'. Traditional / reference
    https://scholar.google.com/scholar?q=British%20Herbal%20Pharmacopoeia
  14. Hoffmann, D (2003) 'Medical Herbalism: The Science and Practice of Herbal Medicine'. Traditional / reference
    https://scholar.google.com/scholar?q=Medical%20Herbalism%3A%20The%20Science%20and%20Practice%20of%20Herbal%20Medicine
  15. Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
    https://powo.science.kew.org
  16. 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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