Botanical Name: Rumex crispus
Common name: Yellow dock, Curled dock (Hoffmann, 2003, p. 578)
Family: Polygonaceae (Hoffmann, 2003, p. 578)
Parts used: Root (Hoffmann, 2003, p. 578), Arial parts (Coruh, Gormez,Ercisli & Sengul, 2008, p. 634).
- Anthraquinone glycosides (nepodin, physcion and emodin)
(Hoffmann, 2003, p. 578)
- Alterative (Hoffmann, 2003, p. 578)
- Diuretic (Coruh et al., 2008, p. 634).
- Laxative (Coruh et al., 2008, p. 634; Hoffmann, 2003, p. 578).
- Hepatic(Hoffmann, 2003, p. 578)
- Cholagogue (Hoffmann, 2003, p. 578)
- Tonic (Hoffmann, 2003, p. 578)
- Antipyretic (Coruh et al., 2008, p. 634).
- Antibacterial & Antioxidant (aerial parts) (Coruh et al., 2008, p. 637).
The genus has being used in traditional Turkish medicine to treat disorders such as eczema, constipation and diarrhoea (Coruh et al., 2008, p. 634). The seeds are cultivated in Turkish folk medicine and the leaves used as a vegetable (Coruh et al., 2008, p. 634). Traditionally yellow dock is seen as blood strengtheners, however few studies have being conducted to support this action (Giese, Hegarty, Tanguay-Colucci, Ulbricht & Weissner, 2013).
- Skin complaints (eczema, psoriasis, urticaria and prurigo)
- Action on bowel by anthraquinone milder (tannin content)
- Promotes flow of bile
- “blood cleansing”
- Jaundice (gall bladder)
(Hoffmann, 2003, pp. 578-579)
Preparation & Dosage
- Decoction: 1-2 tsp/1cup water/tds
- Tincture (1:5): 1-2mL/tds
(Hoffmann, 2003, p. 579)
Fresh root may cause vomiting (Hoffmann, 2003, p. 579)
A fatal poisoning from yellow dock has being reported, and it is suggested that quantities exceeding 100g of the leaves may have serious effects (Giese et al., 2013, p. 2-4).
Coruh, I., Gormez, A. A.,Ercisli, S., & Sengul, M. (2008). Total Phenolic Content, Antioxidant, and Antibacterial Activity of Rumex crispus Grown Wild in Turkey. Pharmaceutical Biology,
46(9), 634–638. DOI: 10.1080/13880200802182240
Giese, N., Hegarty, J., Tanguay-Colucci, S., Ulbricht, C., & Weissner, W. (2013). Yellow Dock (Rumex crispus). Natural Standard Professional Monograph. Retrieved from: http://www.naturalstandard.com/index-abstract.asp?create-abstract=yellowdock.asp&title=Yellow%20dock
Image I: Sturm, J. (2009). Rumex crispus. Retrieved from: http://www.hear.org/pier/imagepages/singles/Rumex_crispus_Sturm52.htm
Image II: Earl, D. (2006). National Education Network. Retrieved from: http://gallery.nen.gov.uk/asset62752-.html