Botanical Overview
Rheum palmatum, commonly known as Chinese rhubarb, Turkey rhubarb, or palmatum rhubarb, belongs to the Polygonaceae family. It is native to China and Central Asia. The root and rhizome of this plant are primarily used in herbal medicine for their notable medicinal properties.
Energetics
Rheum palmatum is characterized by a cooling temperature and drying moisture. It has a bitter and astringent taste profile and a relaxing tonicity. Energetically, it is associated with the regulation of qi.
Primary Actions
- Laxative
- Cholagogue (promotes bile flow)
- Antimicrobial
- Anti-inflammatory
- Astringent
Indications
Western
- Constipation
- Indigestion
- Liver dysfunction
- Digestive sluggishness
Syndromes
- Chronic constipation
- Biliary insufficiency
- Dyspepsia
TCM
- Constipation
- Abdominal fullness
- Jaundice
Syndromes
- Heat accumulation in intestines
- Blood stagnation
- Damp-heat in liver and gallbladder
Ayurveda
- Constipation
- Digestive toxins
Syndromes
- Vata aggravation causing constipation
Unani
- Constipation
- Digestive complaints
Syndromes
- Azaf al-hazm (dyspepsia)
- Suzuk al-ma’idah (gastritis)
Constituents & Mechanisms
Rheum palmatum contains anthraquinones such as emodin and rhein, tannins, stilbenes, and flavonoids, contributing to its laxative, antimicrobial, and anti-inflammatory effects.
Dosage & Preparations
- Decoction of root 3-9 g daily
- Tincture 1:5 50% ethanol, 2-5 mL 1-3 times per day
- Powder 1-3 g daily
Safety & Contraindications
Use with caution during pregnancy and lactation due to potential uterotonic and teratogenic effects. Avoid use in intestinal obstruction and acute abdominal pain. Long-term or excessive use may cause electrolyte imbalance and dependence. Interactions are reported with diuretics, cardiac glycosides, and anticoagulants; monitor accordingly.
Astrological Correspondences
No confirmed planetary or elemental rulers documented for Rheum palmatum in authoritative esoteric sources.
Selected References
- Assessment Report on Rheum palmatum L., radix – European Medicines Agency HMPC, 2017
- Rheum palmatum (Chinese rhubarb) Monograph – Plants For A Future
- WHO Monographs on Selected Medicinal Plants, Volume 1 – World Health Organization, 1999
- Chinese Herbal Medicine Materia Medica, 3rd Ed. – Bensky, Clavey, Stoger, 2004
- Phytochemicals and Biological Activities of Rheum palmatum – Duke’s Phytochemical and Ethnobotanical Databases