Educational reference only · Not medical advice
Botanical illustration of Cleavers

Galium aparine

Cleavers

Rubiaceae

Evidence: InsufficientCaffeine Free EuropeSafety information on file
Save to favorites

At a Glance

Common name
Cleavers
Scientific name
Galium aparine
Family
Rubiaceae
Region
Europe
Plant part
Aerial parts
Caffeine
Caffeine Free
Evidence
Insufficient
Safety review
Safety information on file

Safety & Cautions

Safety information on file
Contraindications
Generally very safe in food/tea amounts; mild diuretic - ensure hydration; caution with diuretics and blood-pressure medication; may have mild anticoagulant activity - discontinue before surgery; avoid medicinal doses in pregnancy.
Drug interactions
May enhance diuretics and lower blood pressure; may have mild anticoagulant activity - consult a clinician.
Pregnancy
Generally regarded as safe in tea amounts; avoid medicinal doses.
Breastfeeding
Generally regarded as safe in tea amounts.
Children
Generally safe in mild infusions.
Allergies
Possible in those sensitive to Rubiaceae; rare contact irritation from bristles.
Known adverse effects
Generally very well tolerated; high doses may cause mild GI upset or contact irritation from bristly stems; rare allergic reactions (Rubiaceae).

Botanical Description

A sprawling climbing annual with whorls of narrow lanceolate green leaves, tiny white star-like flowers, and curved bristly hairs that cling along the stem; the aerial parts are used.

Also known as: Goosegrass, Bedstraw, Clivers

Historical Background

Cleavers has been a European spring 'cleansing' herb for centuries, its clinging bristly stems gathered to brew a gentle lymphatic and diuretic tea. A favorite of traditional spring tonics, it brews a fresh, mild, caffeine-free cup tied to lymph and kidney traditions.

Earliest recorded uses: European traditions for centuries; a spring 'cleansing' and lymphatic herb.

Traditional preparations:

  • Aerial-part infusion
  • Spring cleansing tonic
  • Gentle lymphatic cup

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

European Folk Traditions

Spring 'cleansing' and lymphatic herb.

Modern Herbalism

Gentle diuretic and lymph tonic.

Flavor & Aroma

FreshGreenSlightly GrassyMild

Aroma: Fresh, green, slightly grassy, mild

Tea Preparation

Preparation methods
Infusion, Fresh-herb steep
Steeping temperature
200 F (93 C)
Steeping time
5-8 minutes
Recommended vessel
Teapot
Blends well with
Nettle, Red Clover, Dandelion Leaf, Honey, Lemon
200 F (93 C) 5-8 minutes

Modern Evidence

Evidence level: Insufficient

Cleavers has a tradition as a gentle lymphatic, diuretic, and 'cleansing' spring tea; preclinical work shows mild diuretic and antioxidant activity. Clinical evidence is insufficient; it is not a treatment for lymphedema, kidney disease, skin conditions, or any disease, though it remains a gentle, pleasant spring tonic cup.

Evidence levels describe the state of research for the traditional use discussed here, not a recommendation. Historical use does not imply effectiveness.

References & Sources

  1. EMA HMPC · Galii herba assessment (2015)
  2. PubMed · Galium aparine review (2019)

Entry last updated August 4, 2026

Soothing Brews

An educational encyclopedia preserving the history, traditions, and modern evidence behind herbs used in teas and infusions. Inspired by antique botanical manuscripts.

Steeped in tradition, grounded in honesty.

Please Note

This is an educational reference, not a medical resource. Historical use does not imply effectiveness. Natural does not always mean safe. Consult a qualified healthcare professional before using herbs, especially if pregnant, nursing, or taking medications.

© 2026 Soothing Brews · For educational purposes only. · Privacy Policy

Preferred sources: NIH ODS · NCCIH · MSK Herbs · PubMed · WHO · EMA · German Commission E · Cochrane