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Herbs & Cultures
Image of Gumweed

North America · Herb · № 170

Grindelia camporum

Origin
Western North America and Mexico; related species in South America. Grindelia robusta, G. squarrosa and related species
3 traditionsImage: H. Zell · CC BY-SA 3.0

Herb · North America

Gumweed

Grindelia camporum

The sticky herb was traditionally used for coughs, asthma and bronchitis, and externally for poison-ivy rashes. Clinical evidence is lacking.

Safety notes

Large amounts may irritate the kidneys and stomach. Allergy is possible with daisy-family sensitivity. Asthma needs medical treatment.

Cautions by tradition (1)
  • Herbal medicine worldwide: Not with low blood pressure, can irritate the kidneys.

Preparation

The flowering herb as tincture or tea; externally as a compress. No dosage is given here.

Use in traditions

Indigenous peoples of the western prairies and California applied it to rashes and used it for respiratory complaints. Spanish missionaries learned it from them; in the 19th century it entered the US Pharmacopeia. Ody describes it as an American chest herb.

Applications

Use by tradition

How different herbal traditions describe this herb. Amounts are traditional guidelines checked for obvious errors; they are not medical advice. For poisonous plants no dosage is given on purpose.

Herbal medicine worldwide

Attributed effects

Antispasmodic, expectorant, slows the heart.

Preparation and amount

Aerial parts.

Caution: Not with low blood pressure, can irritate the kidneys.