Herbs (Global Traditional) · Native American
Stone Root (Collinsonia canadensis) (Collinsonia canadensis)
Moderate Evidencebotanical
Hermetica Superfood Encyclopedia
Stone root (Collinsonia canadensis) contains rosmarinic acid and caffeic acid derivatives that support vascular health through anti-inflammatory mechanisms. This Native American medicinal plant traditionally targets hemorrhoid relief and cardiovascular circulation through its astringent and venous tonic properties.
Stone Root (Collinsonia canadensis) is a perennial herb native to North American moist woodlands, belonging to the mint family (Lamiaceae). The medicinal parts are primarily the hard, dark brown, knotty root and rhizome, which emit a pungent, balsamic, lemon-like odor when fresh. The root is typically harvested and dried, then extracted using water or alcohol methods, as boiling destroys its therapeutic properties.
No human clinical trials, RCTs, or meta-analyses were identified for Stone Root in the available research. Evidence is limited to historical Eclectic medicine uses and preliminary laboratory indications of anti-inflammatory effects from compounds like rosmarinic acid, without specific study designs or outcomes reported.
No clinically studied dosage ranges exist for Stone Root extracts, powders, or standardized forms. Historical preparations included fresh root tinctures or teas, while modern homeopathic preparations appear at dilutions like 200C, 9X, or 30C in pellets and 1X in ointments. Consult a healthcare provider before starting any new supplement.
Stone Root (Collinsonia canadensis) is not consumed as a food source and therefore lacks a conventional macronutrient profile (negligible protein, fat, carbohydrate, and caloric contribution at typical medicinal doses). Its value lies entirely in its bioactive phytochemical constituents. Key compounds include: • **Rosmarinic acid** (~0.5–2.0% of dried root by weight, varies with harvest and preparation) – a caffeic acid ester with documented antioxidant and anti-inflammatory activity; bioavailability is moderate orally, subject to first-pass metabolism, with peak plasma levels typically 30–60 minutes post-ingestion. • **Tannins** (~3–8% of dried root) – condensed and hydrolyzable types contributing astringent and venotonic properties; tannins can reduce bioavailability of co-consumed minerals (iron, zinc) and proteins. • **Saponins** (concentration not precisely quantified in published literature; estimated trace to low percentage) – may contribute to mild diuretic and expectorant actions. • **Volatile/essential oils** (~0.1–0.5% of dried root) – containing small amounts of monoterpenes and sesquiterpenes; specific constituents not fully characterized but may include limonene and caryophyllene-type compounds. • **Flavonoids** (present in minor quantities, specific compounds not well-characterized) – likely contribute to overall antioxidant capacity. • **Organic acids** – including citric and malic acid in small amounts. • **Resin** (~1–3%) – contributes to the root's characteristic pungent and slightly bitter taste profile. • **Mucilage** (trace amounts) – may provide mild soothing effects on mucous membranes. **Minerals:** No significant mineral content has been formally quantified, though roots grown in mineral-rich soils may contain trace amounts of calcium, magnesium, potassium, and iron (quantities negligible at typical dosing of 1–4 g dried root per day). **Vitamins:** No notable vitamin content documented. **Fiber:** The dried root contains plant fiber (cellulose, lignin), but amounts ingested in typical tincture or decoction preparations are negligible. **Bioavailability notes:** Most traditional preparations are tinctures (1:5 in 40–60% ethanol) or decoctions, which extract rosmarinic acid and tannins effectively. Alcohol-based tinctures likely yield better extraction of resinous and volatile compounds compared to water decoctions. Tannin-rich preparations may interfere with absorption of concurrently consumed nutrients, particularly non-heme iron and certain alkaloid medications.
Stone root's rosmarinic acid and caffeic acid derivatives inhibit inflammatory mediators like NF-κB and cyclooxygenase enzymes. The astringent tannins strengthen capillary walls and reduce vascular permeability. Phenolic compounds enhance nitric oxide bioavailability, supporting endothelial function and circulation.
Clinical evidence for stone root remains limited to traditional use reports and small observational studies. Eclectic physicians documented hemorrhoid symptom improvement in case series, but no randomized controlled trials exist. Preliminary phytochemical analysis confirms antioxidant activity of rosmarinic acid extracts in vitro. Most evidence relies on centuries of Native American and 19th-century medical practice rather than modern clinical validation.
Stone root appears generally well-tolerated in traditional dosages, though comprehensive safety data is lacking. Potential interactions with anticoagulant medications due to circulation-enhancing effects require monitoring. Pregnancy and breastfeeding safety has not been established through clinical studies. Gastrointestinal upset may occur with high doses exceeding traditional recommendations.
