# Plant Monograph: Cinquefoil
**Name of plant:**
Cinquefoil
**Catch phrase (Carmina Gadelica or traditional invocation if available):**
No specific Carmina Gadelica invocation is recorded for cinquefoil. In medieval European herb lore, cinquefoil was often associated with protection and blessing, reflected in the saying: **“Five leaves for grace, five leaves for strength.”**
**Family:**
Rosaceae — Rose family
**Genus and species:**
*Potentilla erecta* (L.) Raeusch. (Tormentil) is the principal medicinal species. Other medicinally used species include *Potentilla reptans*, *Potentilla anserina*, and related *Potentilla* species.
**Other names:**
Cinquefoil, five-finger grass, five-leaf grass, tormentil, silverweed, creeping cinquefoil, potentilla, hand-of-the-earth, pentaphyllon. Gaelic names vary regionally, with tormentil often associated with traditional Highland medicine.
**Brief introduction:**
Cinquefoil refers to a large group of perennial herbs within the genus *Potentilla*, many of which possess medicinal properties. The name derives from the French *cinq feuilles* ("five leaves"), referring to the characteristic five-part leaf arrangement. Throughout Europe, cinquefoil was valued both as a medicinal herb and a magical plant associated with protection, healing, and strength. The most important medicinal species is tormentil (*Potentilla erecta*), whose tannin-rich root has long been used as an astringent remedy for digestive complaints and wound care.
**Traditional uses:**
* Used to treat diarrhea and dysentery.
* Applied to wounds and bleeding injuries.
* Employed as a gargle for sore throats and mouth ulcers.
* Used as a protective herb in folk magic and charms.
* Administered for digestive weakness and intestinal disorders.
**Historical use:**
* Revered in medieval European herbalism as a healing and protective herb.
* Described by Dioscorides and later European herbalists.
* Widely used in Celtic and Germanic folk medicine.
* Associated with protection, blessing, and magical workings in folklore.
* Utilized during epidemics and times of food scarcity as a medicinal and nutritional resource.
**Parts used and method of use:**
* Root (especially tormentil root)
* Aerial parts (leaves and stems)
Used as:
* Decoction.
* Infusion.
* Tincture.
* Gargle, wash, or topical compress.
**Use in healing (modern herbal practice):**
* Astringent remedy for acute diarrhea.
* Supportive treatment for minor oral inflammation.
* Topical wound and skin care herb.
* Traditional support for gastrointestinal irritation.
* Included in herbal formulas for mucosal inflammation.
**Pharmacology and biochemistry:**
* **Tannins** — particularly agrimoniin and related hydrolyzable tannins.
* **Flavonoids** — including quercetin and kaempferol derivatives.
* **Triterpenes** — including tormentic acid and related compounds.
**Mechanisms:**
* Tannins exert strong astringent effects on mucous membranes and tissues.
* Polyphenols contribute antioxidant and anti-inflammatory activity.
* Triterpenes may support tissue repair and reduce local inflammation.
**Overall profile:**
Cinquefoil, particularly tormentil, is a classic European astringent herb. Its medicinal value derives primarily from its exceptionally high tannin content, making it useful for acute diarrhea, minor bleeding, oral inflammation, and topical wound care. Although not widely used in modern mainstream medicine, it remains respected in traditional European herbalism.
**Common dosage:**
* **Decoction:** 1–3 g dried root per cup, taken up to 3 times daily.
* **Powdered root:** 500 mg–2 g daily.
* **Tincture (1:5):** 2–5 mL, up to 3 times daily.
* **Mouthwash/gargle:** Strong decoction used several times daily as needed.
**Safety factors (including side effects):**
* Generally considered safe when used appropriately.
* High tannin content may cause stomach irritation in sensitive individuals.
* Excessive long-term use may impair mineral absorption.
* May contribute to constipation if overused.
* Individuals with chronic digestive disorders should consult a qualified practitioner before prolonged use.
**First aid / adverse reaction response:**
* **Mild stomach irritation:** Reduce dosage or discontinue use.
* **Constipation:** Decrease intake and increase fluid consumption.
* **Allergic skin reaction:** Discontinue topical use and wash affected area.
* **Persistent adverse symptoms:** Seek medical advice.
**Drug interactions:**
* Tannins may reduce absorption of certain medications when taken simultaneously.
* Theoretical reduction in absorption of mineral supplements such as iron.
* May reduce absorption of alkaloid-containing medications.
* Separate administration of medications and cinquefoil preparations by at least 2 hours when possible.
**Horticultural requirements:**
* USDA / Canadian zone: Zones 3–8.
* Soil pH: Approximately 5.5–7.5.
* Light requirements: Full sun to partial shade.
* Moisture: Moderate; prefers well-drained soils.
* Other notes (growth habit, harvest timing, etc.):
* **Growth habit:** Low-growing perennial herb with creeping or clumping growth depending on species.
* **Flowering/fruiting:** Produces yellow, occasionally white flowers from late spring through summer.
* **Harvest timing:** Roots harvested in autumn; aerial parts collected during flowering.
* **Habitat:** Meadows, grasslands, roadsides, heaths, woodland edges, and disturbed ground.
* **Propagation/cultivation notes:** Easily propagated by division, runners, or seed. Generally hardy and adaptable.
**Sampling of clinical reports / studies:**
* **Clinical study or report:** Limited clinical studies support tormentil preparations for acute diarrhea and inflammatory bowel conditions, though evidence remains modest.
* **Pharmacological study:** Laboratory studies demonstrate astringent, antimicrobial, antioxidant, and anti-inflammatory activities.
* **Phytochemical study:** Research consistently identifies high concentrations of tannins, flavonoids, phenolic acids, and triterpenes.
* **Ethnobotanical evidence:** Extensive European ethnobotanical records document centuries of use for digestive complaints, wound care, oral inflammation, and folk protective practices.
* **Overall assessment of evidence:** Cinquefoil possesses strong traditional support and plausible pharmacological mechanisms based on its tannin-rich chemistry. Evidence is strongest for short-term use in mild diarrhea and topical applications. It remains one of the classic astringent herbs of European herbal medicine, though modern clinical research is relatively limited.
Educational Use Only: The information presented on this page is provided for educational, historical, and informational purposes only. ArdNemeton na Tuatha and Bhùth Draoi do not provide medical advice. Always consult your physician and pharmacist before using any herb, mushroom, supplement, or botanical product for medicinal purposes. Traditional uses described herein do not constitute medical claims.