Marsh Cudweed (Gnaphalium uliginosum)

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Botanical Information

• Family: Asteraceae
• Common Names: Marsh Cudweed, Common Cudweed, Low Cudweed
• Parts Used: Aerial parts (leaves, stems, flowers)

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Description

Gnaphalium uliginosum is an annual herb found in damp meadows, marshlands, and wet soils across Europe, Asia, and North America. It is recognized for its woolly, greyish-green leaves and small yellow flowers. Traditionally, it has been valued for its anti-inflammatory, respiratory, and pain-relieving properties.

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Historical and Traditional Uses

• Used in European and folk medicine for respiratory ailments such as asthma and bronchitis.
• Traditionally applied externally for joint pain, rheumatism, and neuralgia.
• Taken as a tea for digestive disturbances and colic.
• Used as a mild sedative for stress, tension, and insomnia.

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Constituents

• Flavonoids
• Essential oils
• Tannins
• Sesquiterpene lactones
• Mucilage

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Actions

• Anti-inflammatory
• Expectorant
• Analgesic (pain-relieving)
• Antispasmodic
• Mild sedative
• Vulnerary (wound-healing)

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Medicinal Uses

1. Respiratory Health:
Traditionally used for bronchitis, asthma, and dry coughs due to its expectorant and anti-inflammatory properties.

2. Pain Relief and Joint Support:
Applied topically for rheumatic pain, neuralgia, and muscle tension.

3. Digestive Health:
Used for indigestion, colic, and mild gastrointestinal discomfort.

4. Wound Healing and Skin Care:
Applied externally for minor wounds, sores, and skin inflammations.

5. Nervous System Support:
Mild sedative effects help reduce tension, anxiety, and promote restful sleep.

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Preparation and Dosage

Infusion (Tea):

• 1-2 tsp of dried aerial parts per cup of boiling water. Steep for 10-15 minutes and drink up to twice daily.

Tincture:

• 2-4 ml taken up to 3 times daily.

Poultice (Topical Use):

• Crushed fresh leaves applied to affected areas for pain relief and wound healing.

Steam Inhalation:

• A handful of dried or fresh herb in hot water, inhaled for respiratory relief.

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Precautions and Contraindications

• Pregnancy and Lactation: Use with caution; consult a healthcare provider.
• Allergies: Avoid if allergic to plants in the Asteraceae family.
• Prolonged Use: Extended use may cause digestive upset in sensitive individuals.

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Energetics (Traditional Medicine Perspectives)

• Traditional Western Herbalism: Cooling and drying; supports respiratory function, digestion, and pain relief.
• Traditional European Medicine: Used for lung ailments and joint pain.
• Ayurveda: Primarily balances Pitta and Kapha, but excessive use may aggravate Vata.

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Combinations

• For Respiratory Support: Combine with mullein and thyme.
• For Pain Relief: Combine with arnica and white willow bark.
• For Digestive Health: Combine with chamomile and peppermint.

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Harvesting and Storage

• Harvesting: Aerial parts are best collected in late summer when in full bloom.
• Drying: Air dry in a well-ventilated, shaded area.
• Storage: Store dried plant material in airtight containers away from moisture and light.

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Modern Research

Studies confirm Gnaphalium uliginosum’s anti-inflammatory, expectorant, and analgesic properties, reinforcing its traditional applications.

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Marsh Cudweed remains a valuable herb in both traditional and modern herbal medicine, particularly for respiratory health, pain relief, and wound healing.