Herbarium of the Ancients — Detailed Notebook

Arctostaphylos

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: Use is not recommended during pregnancy and breastfeeding due to arbutin, a compound with suspected uterine effects. Do not use in children or for prolonged periods, as the high tannin and hydroquinone content may affect the liver and kidneys. Contraindicated in cases of renal insufficiency or pre-existing liver conditions. Seek the advice of a healthcare professional before any internal use, particularly if taking medication.

Decoction — Leaves

Leaf decoction for urinary use

Dried leaves were brought to a gentle boil then steeped for a few minutes, according to reported traditional uses. This preparation should only be considered after consulting a healthcare professional, due to the high tannin and arbutin content. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.

Decoction — Bark

Bark decoction for external use

The bark was boiled at length to obtain a concentrated liquid, used in compresses or washes on the skin. This traditional preparation was limited to external use. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.

Where to find it

Sourcing the plant

Arctostaphylos is found wild on poor, sunny soils in North America; in France, it is mainly found dried in herbalist shops under the name bearberry.

Harvest season

When to harvest

Bark and leaves are traditionally harvested in late summer or autumn, from mature, healthy branches.

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