Motherwort

Home My Blog Herb Profiles Botanical Names Glossary Treatments Recipes Other stuff HERB SHOP Books & Equipment Useful Links

Leonurus cardiaca (L)

 

Synonyms: lion's ear, lion's tail, Roman motherwort, throw-wort

Order: Labiatae

Description: This is an erect perennial, 60-120cm high, with prominent coarsely-toothed 5-7-lobed leaves. Whorls of white to pink flowers arise in the upper leaf axils; the calyx and later the seed case are notable for the border of prickly teeth. Leonurus grows in waste places and hedgerows throughout northern temperate regions and is common in Britain.

Parts used: aerial parts

Collection: during the flowering period, between June and September

Constituents: alkaloids (including leonurine and stachydrene), iridoid glycoside (leonuride), iridoid glycosides (including leonurin and leonuridine), diterpenoids (including leocardin), flavonoids (including rutin, quercetin, hyperoside and apigenin), volatile oil, tannins, vitamin A

Actions: sedative, nervine, antispasmodic, emmenagogue, mildly hypotensive, cardiac tonic, gentle uterine stimulant, mild stimulant to the womb, relaxant, carminative, diaphoretic

Indications: cardiac debility, simple tachycardia, effort syndrome, amenorrhoea. Specifically indicated in cardiac symptoms associated with neurosis.

Therapeutics and Pharmacology: Leonurus is an excellent heart tonic, and research has shown that  it is able to calm palpitations, tachycardia and irregular heartbeats. It is a specific remedy for tachycardia caused  by anxiety, and may be used in all heart conditions associated with anxiety and tension. Treatment should normally be continued for several months. The alkaloid leonurine produces central nervous depressant and hypotensive effects in animals, and stachydrine may also be involved. The glycosides have a short-term ability to lower blood pressure.

Leonurus is valuable in the stimulation of suppressed or delayed menstruation, and to ease dysmenorrhoea, especially where there is anxiety or tension involved. It may be used to ease false labour pains, and the infusion, taken after childbirth, will help restore the uterus and reduce the risk of post-partum bleeding. The alkaloids encourage and ease uterine contractions. It is also helpful during the menopause. The infusion or diluted tincture may be used as a douche for vaginal infections and discharges. Other indications include diarrhoea. In Germany the plant is used as an adjuvant in treatment of an overactive thyroid gland.

Combinations: Leonurus can be combined with Ballota for false labour pains.

Caution: Leonurus is a uterine stimulant and so should be avoided in pregnancy, although it may be used during labour. Stachydrine has the effect of hastening childbirth. Chinese research on L. heterophyllus has shown that decoctions of the plant are as effective as ergotamine in causing the uterus to contract after delivery. Contact with the plant may cause dermatitis in susceptible individuals.

Preparation and Dosage: (thrice daily)

Regulatory status GSL

Dried herb: 2-4g or by infusion

Liquid Extract: 1:1 in 25% alcohol, 2-4ml

Tincture: 1:5 in 45% alcohol, 2-6ml; 1:5 in 25% alcohol, 4-10ml

Additional Comments: An important herb since Roman times, the name Leonurus is derived from a Greek word meaning lion's tail, describing the shaggy shape of the leaves. The ancient Greeks used motherwort to relieve anxiety in new mothers. Early herbals recommend the plant for 'wykked sperytis'. Culpeper said, 'There is no better herb to drive melancholy vapours from the heart, to strengthen it and make the mind cheerful, blithe and merry. Chinese herbalists use the related species L. heterophyllus mainly for menstrual disorders, raised blood pressure, heart disease and conjunctivitis. The aerial parts (yi mu cao) are also used for eczema and sores, while the seeds (chong wei zi) are used for menstrual irregularities, and as a circulatory stimulant. They are also believed to act specifically on the liver, and are therefore especially effective on the eyes to 'brighten the vision'. A weak decoction of the seeds may be used in conjunctivitis, or sore and tired eyes.

 

Bibliography

BHMA 1983 British Herbal Pharmacopoeia, BHMA, Bournemouth.

Bradley, P.R. (ed.) 1992 British Herbal Compendium, Volume 1, BHMA, Bournemouth.

Culpeper, N. 1649 Complete Herbal and English Physician, 1990 reprint of the 1814 London edition of Culpeper’s Complete Herbal, Meyer, Illinois.

Grieve, M. 1931 A Modern Herbal, (ed. C.F. Leyel 1985), London.

Hoffmann, D. 1990 The New Holistic Herbal, Second Edition, Element, Shaftesbury.

Lust, J. 1990 The Herb Book, Bantam, London.

Mabey, R. (ed.) 1991 The Complete New Herbal, Penguin, 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.

Polunin, M. and Robbins, C. 1992 The Natural Pharmacy, Dorling Kindersley, London.

Weiss, R.F. 1991 Herbal Medicine, Beaconsfield Arcanum, Beaconsfield.

Wren, R.C. 1988 Potter's New Cyclopaedia of Botanical Drugs and Preparations, C.W.Daniel, Saffron Walden.

 

Back to top

Previous herb Back to Index Next herb


 

Contact: woldfarm@aol.com 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.

Hit Counter

Christine Haughton, MA MNIMH MCPP FRSPH

Wold Farm, West Heslerton, Malton, North Yorkshire YO17 8RY, UK

Last updated 27th November 2014     ©Purple Sage Botanicals