Herbier des Anciens — Detailed NotebookFR · EN
white ash
Fraxinus americana
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: Avoid prolonged internal use without advice from a healthcare professional, as the bark contains compounds whose long-term effects are poorly documented. Not recommended for pregnant or breastfeeding women as a precaution, due to insufficient data. Do not use in children without medical advice. Individuals on medication: seek advice before any use, due to potential interactions that have not been adequately studied.
Decoction — Bark
White ash bark decoction
The dried and fragmented bark is gently boiled in water, then left to steep for a few minutes off the heat. This traditional preparation was reserved for occasional and supervised use. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.
Compress — Leaves
Fresh leaf compress
Fresh leaves, slightly crushed or infused, were applied as a compress to the affected area. Professional advice is recommended before any prolonged application. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.
Where to find it
Obtaining the plant
White ash grows in the temperate forests of eastern North America and is sometimes cultivated as an ornamental; dried bark may be available from certain specialized herbalist shops.
Harvest season
When to harvest it
The bark is traditionally harvested in spring or fall, while the leaves are picked young in early summer.
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