Melilot

Yellow melilot, sweet clover, king’s clover, plaster clover, hart’s clover, sweet lucerne, wild laburnum; Melilotus officinalis of Linnaeus, with the white melilot, Melilotus alba; in pharmacy Meliloti herba

Known today as
Melilotus officinalis, a branching herb of the legume family two to four feet high, of dry fields, roadsides, chalky banks, and railway embankments, with leaves in threes and long racemes of small sweet-scented yellow flowers, followed by broad, black, one-seeded, wrinkled pods. All the melilots, Grieve says, have a sweet smell in flower that grows stronger in drying, “somewhat like that of the Tonka bean,” because both contain coumarin, the scent of new-mown hay and woodruff. The dried flowering herb is the medicine.
Kind
Plant, in 2 older authorities
Constituents
coumarin, melilotoside
Earliest authority here
Galen, as Grieve reports him (AD 129–c. 216)
In other databases
Plants of the World Online · GBIF · Wikidata

Caution. Not for anyone under eighteen, for want of data. The European agency asks for a doctor if signs of thrombophlebitis, hardening under the skin, sudden swelling of one or both legs, or heart or kidney failure appear, or if a skin inflammation worsens or becomes infected. Stomach complaints and allergic reactions have been reported.

Melilot: what was it used for?

A plaster and fomentation for swellings. Grieve calls it aromatic, emollient, and carminative, and “Applied as a plaster, or in ointment, or as a fomentation, it is an old-fashioned country remedy for the relief of abdominal and rheumatic pains.” Gerard boiled it in sweet wine with egg yolk, linseed meal, marsh mallow roots, and hog’s grease for a poultice that “doth asswge and soften all manner of swellings,” and dropped the juice into the eyes to clear the sight; Culpeper, she reports, had the head washed with the distilled herb for loss of senses and apoplexy. A still-room book of 1651 puts melilot flowers into ‘a bath for Melancholy.’

Melilot: what does modern science say?

The European Medicines Agency’s herbal committee accepts the herb as a traditional herbal medicine, “exclusively based upon long-standing use,” to relieve discomfort and heaviness of the legs from minor disorders of the veins, and for minor inflammation of the skin (monograph of 2017). Its assessment report finds coumarin at 0.3 to 0.9 per cent, formed during drying from glucosides of hydroxycinnamic acid, and the coumaric acid glycoside melilotoside.

Pharmacognosy & Toxicology

Constituents
  • coumarin ChEMBL0.3 to 0.9 per cent, formed in drying from glucosides of hydroxycinnamic acid; the scent of new-mown hay
  • melilotosidea coumaric acid glycoside
Mechanism
Not established in the sources read for this entry.
Standing
European Union herbal monograph (2017): traditional use, “exclusively based upon long-standing use,” for heavy legs from minor venous disorders and minor skin inflammation.
  • European Medicines Agency, Committee on Herbal Medicinal Products. European Union herbal monograph on Meliloti herba (Melilot). EMA/HMPC/44166/2016, 21 November 2017. Read in full · the text read
  • European Medicines Agency, Committee on Herbal Medicinal Products. Assessment report on Meliloti herba. EMA/HMPC/44165/2016, 21 November 2017. Read in part · the text read
  • Grieve, M. A Modern Herbal, “Melilot.” As published on botanical.com. Read in full · the text read

Constituent names open the compound’s record at PubChem, and “ChEMBL” beside a name opens its record at ChEMBL, the European Bioinformatics Institute’s database of bioactive molecules. Where a mechanism line was checked against ChEMBL (ChEMBL 37, read 1 October 2026), the check is shown with the measured value and its source paper, or says plainly that nothing has been measured. Doses are as the references give them, for description only; this is not medical advice. Each source carries the result of its check against Crossref, PubMed, or the authority’s page: see Verification.

Melilot: what lore surrounds it?

The name, Grieve explains, is honey-lotus, from Latin mel, honey, the plants being great favourites of bees, and the deer that browse on it gave it the name hart’s clover. The dried herb scented snuff and tobacco, was laid among linen like lavender, and was packed with furs to keep the moths away. In Switzerland, she reports from Syme and Sowerby’s English Botany, the powdered herb, called ‘Zieger kraut,’ curd herb, was worked into the green cheese Schabzieger, where it stopped the putrefaction and let the cheese keep unchanged.

Melilot: what did the older authorities say?

Galen, as Grieve reports him
He “used to prescribe Melilot plaster to his Imperial and aristocratic patients when they suffered from inflammatory tumours or swelled joints,” and the plaster, she adds, was still so used in parts of the Continent.
John Gerard, as Grieve quotes him
Melilot was then a common crop that ran wild: “for certainty no part of the world doth enjoy so great plenty thereof as England and especially Essex,” where between Sudbury and Clare he saw many acres overgrown with it, so that “it doth not only spoil their land, but the corn also.”

Sources

  • Grieve, M. A Modern Herbal, “Melilot.” As published on botanical.com. Read in full · the text read
  • European Medicines Agency, Committee on Herbal Medicinal Products. European Union herbal monograph on Meliloti herba (Melilot). EMA/HMPC/44166/2016, 21 November 2017. Read in full · the text read
  • European Medicines Agency, Committee on Herbal Medicinal Products. Assessment report on Meliloti herba. EMA/HMPC/44165/2016, 21 November 2017. Read in part · the text read

Verification

Checked
October 1, 2026
Passes
  • Every sentence read against its sources, in the pass over the remaining 343 entries
  • The Standing line checked against the authority it names (EMA, WHO, FDA, CITES, Commission E)
  • Every dated or regulatory claim checked by category across the database
Sources
3 cited: 2 read in full, 1 read in part.
Corrections
None were needed.

What was checked, how, and what was found is set out on the Verification page. A checked source is one whose record was found; it does not make the entry medical advice.

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Cite This Entry

Version 1 · first published October 16, 2026

Chicago

“Melilot.” In Materia Medica, edited by B. C. P. Statema. Version 1. The Thinking Press, 2026–. Last modified October 16, 2026. https://thethinkingpress.org/materia-medica/melilot.

MLA

“Melilot.” Materia Medica, edited by B. C. P. Statema, version 1, The Thinking Press, 16 Oct. 2026, thethinkingpress.org/materia-medica/melilot. Accessed 17 Oct. 2026.

APA

Melilot. (2026, October 16). In B. C. P. Statema (Ed.), Materia medica (Version 1). The Thinking Press. Retrieved October 17, 2026, from https://thethinkingpress.org/materia-medica/melilot

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See Also

Drawing on the same sources: Grieve

Mint, oil of · Meadowsweet · Mistletoe · the bibliography →

Nearby in the alphabet

Melon root (Cucumis melo) · Milk thistle · Meadow saffron (Colchicum autumnale) · Milkweed · Mastic

Historical description, not medical advice.