Plant Comparison

Blessed Thistle vs Marjoram

A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.

First plant
Second plant
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Plant ABlessed ThistleCnicus benedictusAsteraceaeFull monograph →
Plant BMarjoramOriganum majoranaLamiaceaeFull monograph →

At a glance

Blessed Thistle and Marjoram: they share 7 indicated uses (arthritis / joint pain, bloating, indigestion, …); 3 pharmacological actions in common.

Blessed ThistleMarjoram
Constituents33
Pharmacological actions76
Indicated uses1010
Safety notes32
Cited sources1216
Indicated uses
Only Blessed Thistle
Loss of appetiteCancer (anticancer research)Lactation support
Shared (7)
Arthritis / joint painBloatingIndigestionInfection (general)Inflammation (general)Skin irritationWounds
Only Marjoram
Insomnia / sleeplessnessMenstrual crampsMuscle spasm
Pharmacological actions
Only Blessed Thistle
Anticancer (preclinical)Appetite stimulantBitter digestive tonic / stomachicGalactagogue (supports lactation)
Shared (3)
Anti-inflammatoryAntimicrobialDigestive aid
Only Marjoram
AntioxidantAntispasmodicSedative / sleep support

Evidence face-off — shared uses

ConditionBlessed ThistleMarjoramVerdict
Arthritis / joint pain1/101/10Comparable evidence
Bloating1/101/10Comparable evidence
Indigestion1/101/10Comparable evidence
Infection (general)1/102/10Comparable evidence
Inflammation (general)1/102/10Comparable evidence
Skin irritation1/101/10Comparable evidence
Wounds1/101/10Comparable evidence

Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.

Key Constituents

Sesquiterpene lactones (cnicin, arctigenin, arctiin)[4]

Cnicin is the principal bitter principle and main bioactive compound.

Sesquiterpene lactonesSesquiterpenesArctigenin / arctiin
Flavonoids, lignans and tannins[4]

Additional antioxidant and astringent constituents.

FlavonoidsLignansTannins
Volatile oil[4]

Aromatic constituents of the herb.

Essential (volatile) oil
Essential oil (terpinen-4-ol, sabinene hydrate, thymol, carvacrol)[9]

The volatile oil, dominated by terpinen-4-ol and cis-sabinene hydrate in true sweet marjoram, gives most of the antimicrobial and antioxidant activity.

Essential (volatile) oilThymolCarvacrolTerpenes / terpenoids
Rosmarinic acid and phenolic acids[6, 8]

Contribute to antioxidant and anti-inflammatory activity.

Rosmarinic acid
Flavonoids[8]

Minor antioxidant constituents of the leaf.

Flavonoids

Pharmacological Actions

Anti-inflammatory[1, 4, 7]

Antimicrobial and anti-inflammatory (attributed to cnicin)

Anticancer (preclinical)[5]
Antimicrobial[1, 4, 6]

Antimicrobial and anti-inflammatory (attributed to cnicin)

Appetite stimulant[4, 11]

Appetite stimulant for loss of appetite (approved use under German Commission E)

Bitter digestive tonic / stomachic[4, 11]

Bitter digestive / stomachic for indigestion and dyspepsia (stimulates saliva and gastric secretion)

Digestive aid[4, 11]

Bitter digestive / stomachic for indigestion and dyspepsia (stimulates saliva and gastric secretion)

Galactagogue (supports lactation)[11, 12]

Galactagogue to support breast-milk supply (traditional; no valid clinical-trial evidence)

Anti-inflammatory[3, 6, 8, 11, 12, 13]
Antimicrobial[4, 6, 8, 9, 11, 12, 13]
Antioxidant[2, 6, 8, 9, 11, 12, 13]
Antispasmodic[1, 6, 10, 11, 12, 13]

Antispasmodic (cramp easing)

Digestive aid[6, 7, 11, 12, 13]
Sedative / sleep support[6, 11, 12, 13]

Traditional & Indicated Uses

Loss of appetite[4, 11]Traditional · 1/10

Appetite stimulant for loss of appetite (approved use under German Commission E)

Evidence: 1
Label: Loss of appetite
Arthritis / joint pain[4]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Arthritis / joint pain
Bloating[4, 11]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Bloating
Cancer (anticancer research)[5]Traditional · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)
Indigestion[4, 11]Traditional · 1/10

Bitter digestive / stomachic for indigestion and dyspepsia (stimulates saliva and gastric secretion)

Evidence: 1
Label: Indigestion
Infection (general)[4]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Infection (general)
Inflammation (general)[4]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Inflammation (general)
Lactation support[11, 12]Traditional · 1/10

Galactagogue to support breast-milk supply (traditional; no valid clinical-trial evidence)

Evidence: 1
Label: Lactation support
Skin irritation[4]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation
Wounds[4]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds
Arthritis / joint pain[11, 12, 13]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Arthritis / joint pain
Bloating[11, 12, 13]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Bloating
Indigestion[11, 12, 13]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Indigestion
Infection (general)[4, 11, 12, 13]Traditional · 2/10

inferred from antimicrobial action

Evidence: 2
Label: Infection (general)
Inflammation (general)[3, 11, 12, 13]Traditional · 2/10

inferred from anti-inflammatory action

Evidence: 2
Label: Inflammation (general)
Insomnia / sleeplessness[11, 12, 13]Traditional · 1/10

inferred from sedative action

Evidence: 1
Label: Insomnia / sleeplessness
Menstrual cramps[11, 12, 13]Traditional · 1/10

inferred from antispasmodic action

Evidence: 1
Label: Menstrual cramps
Muscle spasm[1, 11, 12, 13]Traditional · 2/10

inferred from antispasmodic action

Evidence: 2
Label: Muscle spasm
Skin irritation[11, 12, 13]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation
Wounds[11, 12, 13]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds

Safety, Cautions & Contraindications

Safety note[11]Info

As a member of the daisy family (Asteraceae/ragweed), it can cause allergic reactions in sensitive people; high doses reportedly cause stomach cramps, nausea and vomiting.

Safety note[11]Caution

Avoid during pregnancy because of a traditional uterine-stimulating reputation.

Safety note[12]Info

Although traditionally used to support milk supply, there is no scientifically valid clinical evidence for the galactagogue use.

Safety note[11, 12, 13]Caution

Generally very safe as a culinary herb. Essential oil should not be ingested in large amounts and avoided in pregnancy. Theoretically may interact with anticoagulants. Avoid medicinal doses during pregnancy.

Safety note[11, 12, 13, 14]Caution

Duke (2002) rates marjoram (Origanum majorana) as +++ and notes antiviral, antispasmodic, COX-2 inhibitory, and antiseptic activities at the experimental level (score 1). It demonstrates antiherpetic activity in vitro. The plant contains rosmarinic acid and thymol, which contribute to antioxidant and antimicrobial effects. Dose: 1–2 g dried herb as tea three times daily or equivalent preparations. Duke notes the plant is generally well-tolerated with no significant contraindications at usual herbal doses (Duke, 2002).

External Ids

Gbif: 3127698
Powo: urn:lsid:ipni.org:names:61760-2
Wikidata: Q15548577
Gbif: 2926615
Wikidata: Q22694

Botanical Description

Branching annual herb with a hairy, reddish, ridged stem and spiny, deeply lobed leaves with prominent pale veins. The flower heads are pale yellow, thistle-like, surrounded by a whorl of spiny, leaf-like bracts, giving the plant its 'spotted thistle' appearance.[4]

Height: 20-60 cm
Habit: Branching, hairy annual herb
Leaves: Spiny, deeply lobed, with prominent pale veins
Flowers: Pale yellow, thistle-like flower heads surrounded by spiny bracts
Stem: Hairy, reddish, ridged, branching
Root: Shallow taproot
Fruit: Ribbed achene with a feathery pappus
Flowering Period: June-August

Tender perennial subshrub (Lamiaceae), often grown as an annual in cold climates, 20-60 cm tall, with square, downy, much-branched stems. Leaves are opposite, small, grey-green and ovate. Tiny white to pale pink, two-lipped flowers are borne in distinctive knot-like clustered spikes, the origin of the common name 'knotted marjoram'.[6]

Height: 20-60 cm
Habit: Bushy, downy perennial subshrub (often grown as an annual)
Leaves: Opposite, small, grey-green, ovate
Flowers: Tiny, white to pale pink, two-lipped, in knot-like clustered spikes
Stem: Square, downy, much-branched
Root: Fibrous perennial rootstock (in warm climates)
Fruit: Four small nutlets (typical Lamiaceae schizocarp)
Flowering Period: July-September

Habitat

Grows on dry, sunny waste ground, roadsides and rocky slopes; native to the Mediterranean region and Western Asia and naturalised elsewhere as a garden escape.[4]

Native to Cyprus, Turkey and the eastern Mediterranean, and widely cultivated as a culinary and medicinal herb in gardens worldwide; prefers full sun and well-drained, often calcareous soils.[6]

Harvesting

The flowering aerial parts are cut as the plant comes into flower, in summer, and dried in a warm, shaded, airy place to preserve the bitter principle cnicin.[4]

Parts: Aerial parts (flowering herb)
Season: Summer, at flowering

The aerial flowering parts are cut just before or at flowering (summer), when essential-oil content is highest, and dried quickly in a warm, shaded, well-ventilated place.[9]

Parts: Leaf, Flower
Season: Summer, just before or at flowering

Traditional Uses

Blessed thistle has a long European folk reputation as a bitter digestive tonic for loss of appetite and dyspepsia (an approved use under German Commission E) and, more anecdotally, as a traditional galactagogue to support breast-milk supply, though robust clinical evidence for the latter is lacking.[4, 11]

Marjoram has a long Mediterranean culinary-medicinal tradition as a digestive carminative and mild sedative for indigestion, cramping and poor sleep, and as an antiseptic for minor wounds and infections. Modern research confirms antispasmodic, antimicrobial, antioxidant and anti-inflammatory activity from its essential oil and phenolic constituents.[6, 8]

Preparations

Infusion[11]

Dried flowering herb infused briefly in hot water as a bitter digestive tea, taken before meals.

Infusion (tea)[11, 12, 13]

Dried herb steeped in hot water as a digestive, calming tea.

Essential oil (topical)[4]

Diluted essential oil applied for muscular aches or minor skin infections.

Dosage

Infusion[11]

Traditional herbal references suggest around 1-2 g of dried herb per cup, taken before meals, up to three times daily. Educational reference only, not a prescription.

Infusion (tea)[11, 12, 13]

Duke (2002) suggests about 1-2 g dried herb as tea, three times daily, or equivalent preparations. Educational reference only, not a prescription; avoid medicinal doses in pregnancy.

References

REF-0773, REF-0774, REF-0775, REF-0419, REF-1995, REF-1996, REF-1997, REF-1998, REF-1999, REF-2000
REF-1223, REF-1224, REF-1225, REF-1226, REF-1227, REF-1228, REF-1229, REF-1230, REF-1231, REF-1232

Lookalikes Review

Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07
Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07

Drug Class Interactions

Not documented

Safety note[15, 16]Caution
Drug Class: sedatives-cns-depressants
Mechanism: Marjoram is traditionally used as a calming, sedative herb; taken with sedatives, sleeping tablets or other central-nervous-system depressants (including alcohol) it may add to drowsiness and slowed reactions.
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-03

References & Sources

  1. Rezig, K., Benkaci-Ali, F., Foucaunier, M.L., Laurent, S. et al (2023) 'HPLC/ESI-MS Characterization of Phenolic Compounds from Cnicus benedictus L. Roots: A Study of Antioxidant, Antibacterial, Anti-Inflammatory, and Anti-Alzheimer's Activity', Chemistry & Biodiversity, 21(1), pp. e202300724. doi:10.1002/cbdv.202300724 Preclinical
    https://doi.org/10.1002/cbdv.202300724
  2. Ahmadimoghaddam, D., Sadeghian, R., Ranjbar, A., Izadidastenaei, Z. and Mohammadi, S (2020) 'Antinociceptive activity of Cnicus benedictus L. leaf extract: a mechanistic evaluation', Research in Pharmaceutical Sciences, 15(5), pp. 463-472. doi:10.4103/1735-5362.297849 Preclinical
    https://doi.org/10.4103/1735-5362.297849
  3. Zhang, J., Shen, S., Zhu, S., Jia, F. et al (2024) 'Cnicus benedictus extract-loaded electrospun gelatin wound dressing for treating diabetic wounds: An in vitro and in vivo study', Journal of Applied Biomaterials & Functional Materials, 22, pp. 22808000241245298. doi:10.1177/22808000241245298 Preclinical
    https://doi.org/10.1177/22808000241245298
  4. Zietal, K., Mirowska-Guzel, D., Nowaczyk, A. and Blecharz-Klin, K (2024) 'Cnicus benedictus: Folk Medicinal Uses, Biological Activities, and In Silico Screening of Main Phytochemical Constituents', Planta Medica. doi:10.1055/a-2401-6049 Traditional / reference
    https://doi.org/10.1055/a-2401-6049
  5. Jalil, D.M., Al-Mahdawi, T.T., Jameel, M.G. and Talal, M (2024) 'In Vitro Evaluate the Antiproliferative Impact of Cnicus Benedictus L. Leaves Methanolic Extract on Cervical Cancer', Asian Pacific Journal of Cancer Prevention, 25(10), pp. 3643-3649. doi:10.31557/APJCP.2024.25.10.3643 Preclinical
    https://doi.org/10.31557/APJCP.2024.25.10.3643
  6. Peng, Y., Jian, Y., Zulfiqar, A., Li, B., Zhang, K., Long, F., Peng, C., Cai, X., Khan, I.A. and Wang, W (2017) 'Two new sesquiterpene lactone glycosides from Cnicus benedictus', Natural Product Research, 31(19), pp. 2211-2217. doi:10.1080/14786419.2017.1295239 Preclinical
    https://doi.org/10.1080/14786419.2017.1295239
  7. Paun, G., Neagu, E., Moroeanu, V., Albu, C., Savin, S. and Lucian Radu, G (2019) 'Chemical and Bioactivity Evaluation of Cnicus benedictus and Eryngium planum Polyphenolic-Rich Extracts', BioMed Research International, 2019, pp. 3692605. doi:10.1155/2019/3692605 Preclinical
    https://doi.org/10.1155/2019/3692605
  8. Gobrecht, P., Gebel, J., Leibinger, M., Zeitler, C., Chen, Z., Grundemann, D. and Fischer, D (2024) 'Cnicin promotes functional nerve regeneration', Phytomedicine, 129, pp. 155641. doi:10.1016/j.phymed.2024.155641 Preclinical
    https://doi.org/10.1016/j.phymed.2024.155641
  9. Avula, B., Katragunta, K., Wang, Y.H., Ali, Z. and Khan, I.A (2022) 'Simultaneous determination and characterization of flavonoids, sesquiterpene lactone, and other phenolics from Centaurea benedicta and dietary supplements using UHPLC-PDA-MS and LC-DAD-QToF', Journal of Pharmaceutical and Biomedical Analysis, 216, pp. 114806. doi:10.1016/j.jpba.2022.114806 Preclinical
    https://doi.org/10.1016/j.jpba.2022.114806
  10. Paun, G., Neagu, E., Albu, C. and Radu, G.L (2015) 'Inhibitory potential of some Romanian medicinal plants against enzymes linked to neurodegenerative diseases and their antioxidant activity', Pharmacognosy Magazine, 11(Suppl 1), pp. S110-S116. doi:10.4103/0973-1296.157709 Preclinical
    https://doi.org/10.4103/0973-1296.157709
  11. Drugs.com (n.d.) 'Blessed Thistle Uses, Benefits & Dosage'. Available at: https://www.drugs.com/npp/blessed-thistle.html Traditional / reference
    https://www.drugs.com/npp/blessed-thistle.html
  12. Drugs and Lactation Database (LactMed) (2021) 'Blessed Thistle'. Available at: https://www.ncbi.nlm.nih.gov/books/NBK501775/ Traditional / reference
    https://www.ncbi.nlm.nih.gov/books/NBK501775/
  1. Rehman, N.U., Ansari, M.N., Ahmad, W. and Ali, A (2024) 'Calcium Channel Inhibitory Effect of Marjoram (Origanum majorana L.): Its Medicinal Use in Diarrhea and Gut Hyperactivity', Frontiers in Bioscience (Landmark Edition), 29(2), pp. 47. doi:10.31083/j.fbl2902047 Preclinical
    https://doi.org/10.31083/j.fbl2902047
  2. Hussein, Z. and Yasir, S.M (2022) 'Origanum majorana attenuates ciprofloxacin-induced nephropathy in rats', Wiadomosci Lekarskie, 75(12), pp. 3046-3049. doi:10.36740/WLek202212126 Preclinical
    https://doi.org/10.36740/WLek202212126
  3. Elfiky, A.M., Ibrahim, R.S., Khattab, A.R., Kadry, M.O. and others (2025) 'Exploring the therapeutic potential of marjoram (Origanum majorana L.) in polycystic ovary syndrome: insights from serum metabolomics, network pharmacology and experimental validation', BMC Complementary Medicine and Therapies, 25(1), pp. 67. doi:10.1186/s12906-025-04774-5 Preclinical
    https://doi.org/10.1186/s12906-025-04774-5
  4. Waller, S.B., Cleff, M.B., de Mattos, C.B., da Silva, C.C. and others (2021) 'Protection of the marjoram (Origanum majorana Linn.) essential oil in cutaneous sporotrichosis caused by Sporothrix brasiliensis', Natural Product Research, 35(17), pp. 2977-2981. doi:10.1080/14786419.2019.1678617 Preclinical
    https://doi.org/10.1080/14786419.2019.1678617
  5. Haj-Husein, I., Tukan, S. and Alkazaleh, F (2016) 'The effect of marjoram (Origanum majorana) tea on the hormonal profile of women with polycystic ovary syndrome: a randomised controlled pilot study', Journal of Human Nutrition and Dietetics, 29(1), pp. 105-111. doi:10.1111/jhn.12290 Randomized trial
    https://doi.org/10.1111/jhn.12290
  6. Bouyahya, A., Chamkhi, I., Benali, T., Guaouguaou, F.E. and others (2021) 'Traditional use, phytochemistry, toxicology, and pharmacology of Origanum majorana L', Journal of Ethnopharmacology, 265, pp. 113318. doi:10.1016/j.jep.2020.113318 Meta-analysis / review
    https://doi.org/10.1016/j.jep.2020.113318
  7. Al-Howiriny, T., Alsheikh, A., Alqasoumi, S., Al-Yahya, M. and others (2009) 'Protective Effect of Origanum majorana L. 'Marjoram' on various models of gastric mucosal injury in rats', The American Journal of Chinese Medicine, 37(3), pp. 531-545. doi:10.1142/S0192415X0900703X Preclinical
    https://doi.org/10.1142/S0192415X0900703X
  8. Bina, F. and Rahimi, R (2017) 'Sweet Marjoram: A Review of Ethnopharmacology, Phytochemistry, and Biological Activities', Journal of Evidence-Based Complementary & Alternative Medicine, 22(1), pp. 175-185. doi:10.1177/2156587216650793 Meta-analysis / review
    https://doi.org/10.1177/2156587216650793
  9. Paudel, P.N., Satyal, P., Satyal, R., Setzer, W.N. and others (2022) 'Chemical Composition, Enantiomeric Distribution, Antimicrobial and Antioxidant Activities of Origanum majorana L. Essential Oil from Nepal', Molecules, 27(18), pp. 6136. doi:10.3390/molecules27186136 Preclinical
    https://doi.org/10.3390/molecules27186136
  10. Makrane, H., Aziz, M., Mekhfi, H., Ziyyat, A. and others (2019) 'Origanum majorana L. extract exhibit positive cooperative effects on the main mechanisms involved in acute infectious diarrhea', Journal of Ethnopharmacology, 239, pp. 111503. doi:10.1016/j.jep.2018.09.005 Preclinical
    https://doi.org/10.1016/j.jep.2018.09.005
  11. Baser, K.H.C (2008) 'Biological and pharmacological activities of carvacrol and carvacrol bearing essential oils', 14(29), pp. 3106--3119. doi:10.2174/138161208786404227 Traditional / reference
    https://doi.org/10.2174/138161208786404227
  12. Hoffmann, D (2003) 'Medical Herbalism'. Traditional / reference
    https://scholar.google.com/scholar?q=Medical%20Herbalism
  13. Seidler-Lozykowska, K. et al (2016) 'Essential oil content and composition of sweet marjoram (Origanum majorana L.) grown in Poland', 62(1), pp. 37--45. Traditional / reference
    https://scholar.google.com/scholar?q=Essential%20oil%20content%20and%20composition%20of%20sweet%20marjoram%20%28Origanum%20majorana%20L.%29%20grown%20in%20Poland
  14. Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition
  15. Ghasemzadeh Rahbardar, M. and Hosseinzadeh, H (2024) 'Therapeutic potential of hypnotic herbal medicines: A comprehensive review', Phytotherapy Research, 38(6), pp. 3037-3059. doi:10.1002/ptr.8201 Meta-analysis / review
    https://doi.org/10.1002/ptr.8201
  16. Block, K.I., Gyllenhaal, C. and Mead, M.N (2004) 'Safety and efficacy of herbal sedatives in cancer care', Integrative Cancer Therapies, 3(2), pp. 128-148. doi:10.1177/1534735404265003 Meta-analysis / review
    https://doi.org/10.1177/1534735404265003

Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.