Hydrastis canadensis
Low woodland perennial with a single large lobed leaf and small greenish flower, prized for its bright yellow root.
Origin: Eastern North America
Growing Notes: Full shade, rich moist woodland soil — slow-growing and sensitive to disturbance.
Traditionally used short-term for digestive and seasonal immune support.
Simmer 1/2 tsp dried root, covered, 10-15 min; traditionally used short-term rather than continuously.
Dosage: Decoction: 1/2 tsp dried root per cup, short-term use only.
Significant interaction risk: its primary constituent, berberine, inhibits liver enzymes (CYP3A4, CYP2D6) involved in metabolizing many medications — consult a pharmacist or physician before combining with any prescription drug. Avoid during pregnancy, as it has traditionally been used as a uterine stimulant and there is a theoretical concern regarding newborn bilirubin processing if used near birth. Not for prolonged continuous use. Wild goldenseal is at-risk from overharvesting — source only from certified cultivated (not wild-harvested) suppliers.
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