Juglans cinerea (L)
Synonyms: white walnut, lemon walnut, oilnut
Description: A tree indigenous to eastern North America. It can reach 25m in height and has grey, relatively smooth bark. The leaves are large and pinnate, divided into 11-19 pointed and toothed leaflets; there are drooping racemes or catkins of separate male and female flowers. It grows in rich and rocky woods throughout North America.
Parts used: Dried inner bark
Collection: Harvest in early summer.
Constituents: naphthaquinones (juglone, juglandin, juglandic acid), tannin, fixed oil, volatile oil
Actions: Mild cathartic, stimulating laxative, cholagogue, dermatological agent, anthelmintic, tonic, gentle purgative, astringent, antihaemorrhoidal
Indications: Constipation, hepatic dysfunction, exudative skin eruptions. Specifically indicated in constipation associated with dyspepsia.
Therapeutics and Pharmacology: Juglans is used in the treatment of atonic constipation and to stimulate liver function in congestive or sluggish digestive disorders. The quills or inner bark are one of the few potent laxatives that are safe to use in pregnancy. It is of use in chronic or acute skin conditions associated with bowel and/or liver torpor. It will expel worms and can be used in feverish colds and flu. Grieve recommends it for syphilis and old ulcers. The naphthaquinone juglone has antimicrobial, antineoplastic and antiparasitic activity.
Combinations: It may be combined with Berberis and Taraxacum in mild constipation and with Rhamnus if necessary. Combines with Rumex and Arctium root in cutaneous disorders and with Ranunculus in haemorrhoids.
Preparation and Dosage: (thrice daily)
Regulatory status GSL
Dried bark: 2-6g or by decoction
Liquid Extract: 1:1 in 25% alcohol, 2-6ml
Additional Comments: The bark has been used for dyeing.
BHMA 1983 British Herbal Pharmacopoeia, BHMA, Bournemouth.
Grieve, M. 1931 A Modern Herbal, (ed. C.F. Leyel 1985), London.
Lust, J. 1990 The Herb Book, Bantam, London.
Mills, S.Y. 1993 The A-Z of Modern Herbalism, Diamond Books, London.
Ody, P. 1993 The Herb Society's Complete Medicinal Herbal, Dorling Kindersley, London.
Wren, R.C. 1988 Potter's New Cyclopaedia of Botanical Drugs and Preparations, C.W.Daniel, Saffron Walden.
Contact: firstname.lastname@example.org Please complete the 'Subject' heading or your email will be assumed to be spam and automatically deleted. Before you contact me, I'd be grateful if you would please check to see if this website has the answer to your question (search box at the top of the homepage) - I have time to answer only a few of the many emails that arrive in my inbox every day. See also the statement below:
For your safety I am prohibited from giving specific medical advice to individuals over the internet or telephone so please do not waste your time or mine by emailing or calling me with detailed information about your health problems - I can only undertake face-to-face consultations for what should be obvious reasons. Diagnoses cannot be made remotely, and I am unable to offer any advice or treatment until I am completely satisfied that I know what I'm dealing with! The herb profiles and treatment suggestions on this website will help enable you to choose which herbs might be appropriate for minor ailments. For more serious or chronic conditions you should seek professional advice. This is particularly important if you are taking medication from your doctor or pharmacist, as some herbs can interact adversely with other drugs. If you would like to have a consultation with a medical herbalist then you should click here then scroll to 'Professional Organisations' at the bottom of the page to find a qualified practitioner in your area.
Christine Haughton, MA MNIMH MCPP FRSPH
Wold Farm, West Heslerton, Malton, North Yorkshire YO17 8RY, UK
Last updated 27th November 2014 ęPurple Sage Botanicals