Mugwort (Artemisia vulgaris), plate: Mugwort
Mugwort. F. E. Köhler, Köhler’s Medizinal-Pflanzen (1887–98).
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Mugwort

Artemisia

Known today as
Artemisia vulgaris.
Kind
Plant, in 2 older authorities
Constituents
thujone, cineole, vulgarin
Earliest authority here
Pliny (AD 23/24–79)
In the Canale glossary
On the Manner of Discerning and Healing the Bewitched, Appendix A: Part Three, Chapter 6: Remedies Given by Mouth After the Purge

Mugwort: what did Canale use it for?

Its powder in wine; in the cockerel and a julep; in the bath and the oils; worn as an amulet and burnt to drive out “every unclean spirit” (chs. 6–7, 9–10).

Mugwort: how is it taken as a tea?

An ounce to a pint of boiling water, prepared in a covered vessel and given warm by the half-teaspoonful, or cold as a tonic three times a day. Culpeper, Grieve notes, found a very slight infusion excellent for the stomach and too strong a one disgusting to the taste.

All the herbal teas of the database. Historical directions, not medical advice.

Mugwort: what does modern science say?

Mugwort was the herb of St. John’s Eve, worn as a crown or girdle against evil. It has traditional digestive uses and some uterine-stimulant action; nothing more is established.

Pharmacognosy & Toxicology

Constituents
Mechanism
Thujone, in small amounts; the pollen is a chief cause of hay fever in late summer. Artemisinin, the malaria drug, is from the sweet wormwood Artemisia annua, a relative, for which Tu Youyou won the Nobel Prize in 2015.
Toxic dose
The herb is weak; the oil carries thujone.
Syndrome
Convulsant terpenes (thujone, pinocamphone, camphor)
Standing
No approved use in the West; moxibustion burns it on the skin in Chinese practice.
  • Tu, Y. (2011). “The discovery of artemisinin (qinghaosu) and gifts from Chinese medicine.” Nature Medicine 17. Verified against its record · doi:10.1038/nm.2471

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.

Mugwort: what lore surrounds it?

Girdles of mugwort were worn on St. John’s Eve and thrown into the bonfire, carrying the year’s ill luck away with them.

Mugwort is the source of moxa, the aged, pulverized leaf that Chinese medicine burns on acupuncture points, still used, among other purposes, to try to turn breech babies before birth. Pliny’s claim that a traveler carrying mugwort will not tire has a soldierly cousin: Roman soldiers reportedly lined their footwear with the leaf against fatigue and cramp on the march. In Japan mugwort is still hung with iris leaves outside homes to keep evil spirits away by its scent.

Mugwort: what did the older authorities say?

Pliny
Says that a traveler who carries mugwort will not tire on the road.
The Nine Herbs Charm
The Old English charm names mugwort the first and eldest of the nine herbs, and bids it remember what it made known.

Sources

  1. [1] Abiri, R., et al. (2018). Towards a better understanding of Artemisia vulgaris: botany, phytochemistry, pharmacological and biotechnological potential. Food Research International 109: 403–415. doi:10.1016/j.foodres.2018.03.072 Verified against its record · doi:10.1016/j.foodres.2018.03.072
  2. [54] Grieve, M. (1931). A Modern Herbal. Online edition, botanical.com, cited under the plant concerned. Read in part · the text read
  • Wikipedia, “Mugwort.” Book, not indexed
  • Grieve, M. A Modern Herbal, “Mugwort.” As published on botanical.com.

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
5 cited: 1 read in part, 2 verified against its record, 1 book, not indexed, 1 not yet checked.
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.

Cite This Entry

Version 1 · first published September 25, 2026

Chicago

“Mugwort.” In Materia Medica, edited by B. C. P. Statema. Version 1. The Thinking Press, 2026–. Last modified September 25, 2026. https://thethinkingpress.org/materia-medica/mugwort.

MLA

“Mugwort.” Materia Medica, edited by B. C. P. Statema, version 1, The Thinking Press, 25 Sept. 2026, thethinkingpress.org/materia-medica/mugwort. Accessed 8 Oct. 2026.

APA

Mugwort. (2026, September 25). In B. C. P. Statema (Ed.), Materia medica (Version 1). The Thinking Press. Retrieved October 8, 2026, from https://thethinkingpress.org/materia-medica/mugwort

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See Also

Poisoned alike: convulsant terpenes (thujone, pinocamphone, camphor)

Rosemary · Mint, oil of · Sage · Hyssop · Tansy · Hungary water · Wormwood, oil of · Camphor · the syndrome, with all of them →

Drawing on the same sources: Wikipedia, Grieve

Mummy · Manna · Musk · Motherwort · Mustard seed · the bibliography →

Nearby in the alphabet

Morel (hollow spring mushroom) · Moonwort (The small fern Botrychium lunaria) · Moly (Unidentified)

Historical description, not medical advice.