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Goldenseal (Hydrastis canadensis) — Orange Root, Yellow Puccoon
Materia Medica
Family: Ranunculaceae
Common names: Goldenseal, orange root, yellow puccoon
Part used: Rhizome and root
Growth habit: Woodland perennial
Primary tradition: Native American and Eclectic herbalism
Actions & Energetics
Bitter, cooling, and drying. Traditional actions include antimicrobial, astringent, and mucous membrane tonic. The root is intensely bitter and yellow. Energetically considered cooling and drying.
Botanical Description
A low woodland perennial with broad, palmately lobed leaves and a single white flower followed by a red berry. The rhizome is thick, yellow, and intensely bitter. It grows in rich, moist deciduous forests of eastern North America.
Name Confusion & Look-Alikes
True goldenseal must be distinguished from other yellow-rooted woodland plants. Correct identification of the leaves and rhizome is critical. Overharvesting has made wild populations vulnerable; cultivated material is preferred.
Traditional Indications
Native American and Eclectic use of the root for mucous membrane inflammation, digestive issues, and as a topical antimicrobial. It was traditionally used for eye washes, mouth sores, and digestive complaints. Culinary use is not traditional.
Preparations & Dosage
Decoction, tincture, or powdered root. Traditional doses are small due to the bitterness and potency. External washes and mouth rinses are also traditional. The plant is not used as a food.
Classical Formulations
Goldenseal appears in Eclectic and Native American formulas for mucous membrane support. It is often combined with other astringent or antimicrobial herbs.
Constituents
Isoquinoline alkaloids (berberine, hydrastine, and canadine). Berberine is responsible for much of the antimicrobial and yellow-staining activity. Content varies with root age and growing conditions.
Modern Research
Preclinical studies document antimicrobial and anti-inflammatory activity of berberine and related alkaloids. Human clinical data for goldenseal as a whole herb are limited. The plant is listed as at-risk or endangered in parts of its range due to overharvesting.
Adverse Effects
The intense bitterness can cause digestive upset. High doses may cause nausea or other gastrointestinal discomfort. Topical use can stain skin and clothing yellow.
Interactions & Contraindications
Berberine may interact with certain medications. Avoid during pregnancy due to potential uterine stimulant effects. Not recommended for long-term continuous use. Wild harvesting is discouraged due to conservation concerns.
Pregnancy & Breastfeeding
Contraindicated during pregnancy due to potential uterine effects. Safety during breastfeeding is insufficient.
Habitat & Cultivation
Native to rich, moist deciduous forests of eastern North America. Prefers shade and humus-rich soil. Cultivation is possible but slow. Wild populations are threatened by overharvesting.
Propagation
Propagated by seed or by division of the rhizome. Seed germination is slow and requires cold stratification. Plants take several years to reach harvestable size.
Harvesting & Drying
Rhizomes are harvested from plants at least three to five years old in autumn. Wash, slice, and dry thoroughly. Cultivated material is preferred over wild-harvested roots.
Food Use
Goldenseal is not used as a food plant. It is a medicinal herb only. The intense bitterness precludes culinary use.
History, Folklore & Spiritual Use
Goldenseal has a long history in Native American and Eclectic herbalism for mucous membrane and digestive support. The bright yellow root was also used as a dye. Conservation concerns have made cultivated material increasingly important.
Materia Medica Summary
Goldenseal (Hydrastis canadensis) is a woodland perennial whose yellow root has a long traditional reputation for mucous membrane support and antimicrobial use. Conservation concerns make cultivated material preferable. Educational information only.