Herbier des Anciens — Detailed Record

Fremontodendron californicum

Please read before use: the information below describes traditional and informational uses—it does not replace advice from 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 fine hairs covering the seed capsules, leaves, and young stems are highly irritant upon contact with skin, eyes, and respiratory tract: direct handling of the fresh plant is not recommended without protection. No internal preparation is currently well-documented or recommended for this species; the known traditional use concerns primarily the bark and wood for external or utilitarian purposes. In case of accidental contact with the irritant hairs, rinse thoroughly and consult a healthcare professional if irritation persists. This plant should not be consumed or used without advice from a qualified herbalist or healthcare professional, due to insufficient traditional documentation on its internal safety.

Poultice — Inner Bark

Bark Poultice

The inner bark, fresh or dried, was pounded and then mixed with a little water to form a paste applied topically to the skin. This traditional use remains poorly documented and should be approached with caution, avoiding any contact with the plant's irritant hairs during harvesting. Dosage should be validated with a healthcare professional or a recognized pharmacopoeia before use.

Where to Find It

Sourcing the Plant

Fremontodendron californicum is found in the wild on dry, rocky hillsides in California, as well as in certain dry gardens and nurseries specializing in Mediterranean or xerophytic plants in France.

Harvest Season

When to Harvest

The bark is preferably harvested in late summer or autumn, when the sap is less active, taking care to avoid any contact with the irritant hairs of young shoots and capsules.

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