Herbarium of the Ancients — Detailed RecordFR · EN

Cardamine carcajou

Cardamine diphylla
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, consult a professional before use.
Consume the root in moderation: its pungent taste, similar to mustard, may irritate sensitive mucous membranes in large quantities. Avoid in case of sensitive stomach or inflammatory digestive disorders, as the plant belongs to the Brassicaceae family, known for their irritating sulfur compounds. Since traditional use is not well documented by modern research, it is recommended to seek the advice of a healthcare professional before any regular or prolonged use. Harvest with discretion: this woodland plant may be locally rare and deserves respectful and limited foraging.
Raw Preparation — Root

Fresh condiment root

The root is washed, peeled, then finely grated, to be consumed immediately to preserve its pungency, somewhat like horseradish. It can accompany simple dishes according to traditional uses. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.

Infusion — Leaves

Light leaf infusion

The young dried leaves can be infused for a few minutes in simmering water, according to reported folk uses. It is advisable to consult a professional before regular consumption, given the lack of extensive documentation. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.

Compress — Whole Plant

Whole plant poultice

The fresh plant, slightly crushed, was applied directly as a compress to the skin according to the oral tradition of certain communities. This use remains anecdotal and poorly formalized in written sources. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.

Where to Find It

Sourcing the Plant

It is found in the wild in humid and shaded woodlands of northeastern America and Canada; it is rarely cultivated or sold in herbalist shops outside its natural range.

Harvest Season

When to Harvest

The root is traditionally harvested in early spring, before flowering, when its pungent taste is most pronounced.

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