Common centaury (Centaurium erythrea Gentianaceae)

Other Names: European Centaury, Bitter Grass

Common centaury, a slender and elegant plant native to Europe, grows from 10 to 60 centimeters tall in grassy areas. In summer, star-shaped pink flowers bloom on spindle-shaped stems. Long, pale green leaves form a rosette at the base and are arranged in pairs along the stem. Its use for fever treatment has been known since ancient times.

Parts for Use

Leaves, Stems, and Flowers

1. Aboveground parts are harvested immediately after the flowers fully bloom.
2. Dried and crushed parts are used in infusions, decoctions, powders, and tinctures.
3. Often combined with appetite-stimulating herbs like great yellow gentian and mugwort.

Ingredients

The aboveground parts are rich in phenolic acids, flavonoids, xanthone derivatives, and bitter secoiridoids.

Use in Treatment

Bitter secoiridoids stimulate gastric juice secretion, making common centaury effective for poor appetite, chronic digestive issues, and bloating. Its diuretic properties and ability to stimulate bile production may support liver and gallbladder function, aiding in toxin removal. As a tonic, it is often combined with anise, chamomile, mint, and fennel to combat extreme fatigue and aid recovery. Studies suggest its liquid extract has anti-inflammatory and fever-reducing effects, likely due to phenolic acids. Common centaury is also used in ear lotions and hair growth preparations to address head lice and hair loss. Use for liver, gallbladder, inflammation, fever, head lice, and hair loss requires medical supervision due to potential risks.

Cultivation

Common centaury thrives in sandy, neutral to alkaline soil in sunny locations.

Preparation and Dosage

For Internal Use (Poor Appetite, Indigestion, Bloating, Extreme Fatigue)

1. Infusion: Steep 1 gram of dried herbs in a cup of boiling water for 15 minutes, strain, and drink 3 cups (cold or lukewarm) daily before meals.
2. Powder: Take 1–2 grams 2–3 times daily.
3. Tincture (1:4 in 45% alcohol): Add 30 drops to a glass of water and take 3 times daily.

For External Use (Head Lice, Hair Loss)

1. Decoction: Boil 30–50 grams of dried herbs in 1 liter of water for 2–3 minutes, strain, cool, and rub into hair 1–2 times daily.

Warnings

1. Consult a healthcare professional before use, especially for liver, gallbladder, inflammation, fever, head lice, or hair loss treatments.
2. Avoid in cases of stomach ulcers or digestive tract inflammation.
3. Limit treatment to 10 days to prevent stomach wall irritation.
4. Do not use during pregnancy or breastfeeding.