Herbarium of the Ancients — Detailed Monograph

Caulophyllum thalictroides

Read before use: the information below describes traditional and educational 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: This plant must be handled with great caution: it is strictly contraindicated during pregnancy outside of medical supervision or experienced midwifery care, due to reported uterine-stimulating properties. Contraindicated in children, during breastfeeding, or in the presence of cardiovascular conditions, due to alkaloid compounds that may affect heart rhythm. Never use without the advice of a healthcare professional trained in phytotherapy, especially if taking medications (risk of interaction). The fresh plant and seeds are toxic; only the dried root, properly prepared, is traditionally used, in measured doses.

Decoction — Root

Dried root decoction

The dried and chopped root was gently boiled in water for several minutes, then left to steep before straining. This preparation, historically transmitted orally, should only be considered after consultation with a qualified professional. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.

Tincture — Root

Root tincture

The fresh or dried root was macerated in alcohol for several weeks, according to the classic methods of eclectic herbalism. Due to the potency of this preparation, dosage must be determined by a practitioner. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.

Infusion — Leaves

Light leaf infusion

The leaves, less documented and considered milder than the root, were sometimes briefly infused in certain local folk traditions. This use remains marginal and also requires caution and professional advice. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.

Where to find it

Obtaining the plant

Caulophyllum thalictroides is found in the wild in moist, shaded woodlands of eastern North America; it is also available, in the form of dried root or tincture, from certain herbalist shops specializing in North American plants.

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