Herbier des Anciens — Detailed NotebookFR · EN
Erigeron canadensis
Erigeron canadensis
Please read before use: the information below describes traditional and informational uses — it does not replace the advice of a healthcare professional. In case of doubt, pregnancy, breastfeeding, ongoing treatment, or use in children, seek advice before use.
Enhanced precautions for this plant: The essential oil of Erigeron canadensis is rich in potentially toxic compounds and should never be used without supervision by a qualified professional. To be avoided during pregnancy or breastfeeding due to traditional use related to menstruation, suggesting possible uterine activity. Prolonged use or high doses may irritate the kidneys and digestive tract; it is not recommended for people with kidney insufficiency. Seek advice from a healthcare professional before any internal use, especially if taking medication.
Infusion — Dried flowering aerial parts
Traditional infusion of aerial parts
The dried flowering tops are infused for a few minutes in hot water. This preparation was used occasionally and not for prolonged periods, on the advice of an expert. Dosage to be validated with a healthcare professional or recognized pharmacopoeia before use.
Decoction — Dried whole plant
Decoction for external use
The dried plant is brought to a boil then allowed to simmer gently before being filtered. The cooled liquid was used in compresses on the skin, never for prolonged internal use without specialized advice. Dosage to be validated with a healthcare professional or recognized pharmacopoeia before use.
Where to find it
Obtaining the plant
It is found in the wild in wastelands, roadsides, and abandoned fields in North America and Europe; it is also available dried from certain herbalists specializing in plants from the North American continent.
Harvest season
When to harvest it
The aerial parts are traditionally harvested in summer, at the height of flowering, in dry weather.
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