Fleabane
(Erigeron canadense)
Also know as Canadian fleabane
Botanical Information
A tall, slender herbaceous perennial with spikes of small greenish flowers of the Aster family; a common weed in disturbed soil throughout North America, Europe, and other countries.
Working with Fleabane
Part(s) Used
Leaf, Seeds
Herb Forms
Tincture, bulk herb, essential oil
Christopher Hobbs:
“Fleabane has hemostatic principles and is of value in light internal hemorrhages and mennorhagia and metrorrhagia. It is also used to stop nosebleeds.
The essential oil is sometimes used, 2 drops dissolved in a tablespoon of vodka and blended into a cup of water with one-half teaspoon of honey. In the late 1800s and early 1900s doctors used fleabane for kidney and bladder diseases and hemorrhages. The herb tea is sometimes used for colds and other respiratory infections because of its anti-inflammatory, fever-lowering, and antibacterial effects.
Fleabane has a taste of AROMATIC, BITTER, ASTRINGENT and a temperature of COOL.”
Historical Uses
Fleabane has been used in traditional medicine, particularly in Europe and North America, for centuries. It was primarily used as a folk remedy for conditions like fevers, digestive issues, headaches, and as an insect repellent. The name “fleabane” comes from its supposed ability to repel fleas and other insects.
Modern Clinical Uses
- Herbalists & Naturopaths: Fleabane is utilized in herbal medicine for its anti-inflammatory, diuretic, and antispasmodic properties. It is sometimes used in teas or tinctures for urinary tract infections, respiratory issues, and digestive complaints.
- Chemistry: The plant contains compounds like flavonoids, sesquiterpene lactones, and essential oils, which are believed to contribute to its medicinal effects.
- Pharmacology: Its active compounds are thought to exert anti-inflammatory, antimicrobial, and antispasmodic effects. Some research suggests it may have antioxidant properties as well.
Clinical Trials & Research
There is limited clinical research on fleabane specifically. However, preliminary studies and traditional use suggest its potential in managing inflammation, infections, and digestive disturbances. The pharmacological activity of the plant’s bioactive compounds, like flavonoids and lactones, is an area of interest, but more rigorous clinical trials are needed to confirm its efficacy and safety in modern medicine.
Summary
Fleabane has a rich history of use in folk medicine, with modern herbalists using it for its anti-inflammatory and antimicrobial properties. Its safety profile is relatively good in moderate doses, though it should be used with caution due to its bioactive compounds. While some research supports its medicinal value, clinical trials are limited, and more studies are needed to validate its therapeutic benefits.
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Cautions
Fleabane is considered generally safe in moderate amounts when used as a herbal remedy. However, due to the presence of sesquiterpene lactones, which can be toxic in large doses, caution is advised. It may cause skin irritation or allergic reactions in sensitive individuals. Pregnant or breastfeeding women should avoid its use.
Conditions treated with Fleabane
Condition
Treatment Support
Application
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Dosages
Infusion
1–2 teaspoons of dried herb per cup of water, steeped for 10–15 minutes, 1–2 times per day
Tincture
20-30 drops, 2–3 times daily
The information given here is designed to help you make informed choices about your health. The information is drawn from numerous sources—both traditional medicine practice, from the clinical experience of many herbalists currently practicing, and supported by decades of scientific research from the author. The research most consulted includes human clinical trials that help to determine the most effective and safe herbs for various needs, the best doses, and types of preparations.
The information offered in this database is not intended as a substitute for any that may have been prescribed by your health practitioner or physician.