Plant Comparison

Blessed Thistle vs Elecampane

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 BElecampaneInula heleniumAsteraceaeFull monograph →

At a glance

Blessed Thistle and Elecampane: both belong to the Asteraceae family; they share 6 indicated uses (arthritis / joint pain, cancer (anticancer research), infection (general), …); 3 pharmacological actions in common.

Blessed ThistleElecampane
Constituents33
Pharmacological actions74
Indicated uses109
Safety notes32
Cited sources1214
Indicated uses
Only Blessed Thistle
Loss of appetiteBloatingIndigestionLactation support
Shared (6)
Arthritis / joint painCancer (anticancer research)Infection (general)Inflammation (general)Skin irritationWounds
Only Elecampane
BronchitisCoughRespiratory support
Pharmacological actions
Only Blessed Thistle
Appetite stimulantBitter digestive tonic / stomachicDigestive aidGalactagogue (supports lactation)
Shared (3)
Anti-inflammatoryAnticancer (preclinical)Antimicrobial
Only Elecampane
Expectorant

Evidence face-off — shared uses

ConditionBlessed ThistleElecampaneVerdict
Arthritis / joint pain1/102/10Comparable evidence
Cancer (anticancer research)2/102/10Comparable evidence
Infection (general)1/102/10Comparable evidence
Inflammation (general)1/102/10Comparable evidence
Skin irritation1/102/10Comparable evidence
Wounds1/102/10Comparable 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
Sesquiterpene lactones (alantolactone, isoalantolactone, igalan, diplophyllin)[2, 12, 13, 14]

The antimicrobial and anti-inflammatory principles of the root; the eudesmane core and the alpha,beta-methylene-lactone ring are essential for the antimicrobial activity.

Sesquiterpene lactonesSesquiterpenes
Inulin[12]

A fructan polysaccharide abundant in the root (the genus Inula gives inulin its name).

PolysaccharidesInulin
Essential oil[12]

Aromatic constituents of the root.

Essential (volatile) oil

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[1, 2, 3, 4, 5]

Anti-inflammatory - sesquiterpene lactones (alantolactone, isoalantolactone) inhibit NF-kB and MAPK signalling and pro-inflammatory cytokines; total sesquiterpene lactones eased arthritis in animal models (potential in rheumatoid arthritis)

Anticancer (preclinical)[9, 10, 11]
Antimicrobial[6, 12, 13, 14]

Antimicrobial, notably anti-staphylococcal (membrane-damaging) and anti-mycobacterial (active against Mycobacterium tuberculosis in vitro); supports respiratory and skin infection

Expectorant[1, 12]

Expectorant for productive cough and bronchitis (long-standing respiratory remedy)

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[2]Traditional · 2/10

Anti-inflammatory - sesquiterpene lactones (alantolactone, isoalantolactone) inhibit NF-kB and MAPK signalling and pro-inflammatory cytokines; total sesquiterpene lactones eased arthritis in animal models (potential in rheumatoid arthritis)

Evidence: 2
Label: Arthritis / joint pain
Bronchitis[12]Traditional · 1/10

Expectorant for productive cough and bronchitis (long-standing respiratory remedy)

Evidence: 1
Label: Bronchitis
Cancer (anticancer research)[9, 10, 11]Traditional · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)
Cough[12]Traditional · 1/10

Expectorant for productive cough and bronchitis (long-standing respiratory remedy); Soothes irritated airways / chronic catarrh (traditional)

Evidence: 1
Label: Cough
Infection (general)[12, 13, 14]Traditional · 2/10

Antimicrobial, notably anti-staphylococcal (membrane-damaging) and anti-mycobacterial (active against Mycobacterium tuberculosis in vitro); supports respiratory and skin infection

Evidence: 2
Label: Infection (general)
Inflammation (general)[2]Traditional · 2/10

inferred from anti-inflammatory action

Evidence: 2
Label: Inflammation (general)
Respiratory support[12]Traditional · 1/10

inferred from expectorant action

Evidence: 1
Label: Respiratory support
Skin irritation[2]Traditional · 2/10

inferred from anti-inflammatory action

Evidence: 2
Label: Skin irritation
Wounds[12, 13, 14]Traditional · 2/10

inferred from antimicrobial action

Evidence: 2
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[12]Info

The sesquiterpene lactones (especially alantolactone) are known skin sensitisers and can cause allergic contact dermatitis; people sensitive to the daisy family (Asteraceae) should be cautious.

Safety note[12]Caution

Large doses can cause nausea, vomiting and diarrhoea; safety in pregnancy and breastfeeding is not established, so avoid medicinal doses.

External Ids

Gbif: 3127698
Powo: urn:lsid:ipni.org:names:61760-2
Wikidata: Q15548577
Gbif: 3148340
Wikidata: Q697416

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

Tall, robust perennial herb with large, coarse, hairy leaves - broadly oval near the base and progressively smaller up the stem - arising from a thick, aromatic rhizome. Large, shaggy, bright yellow daisy-like flower heads with numerous narrow ray florets are borne at the top of stout, branching stems.[12]

Height: 1-2.5 m
Habit: Tall, robust, coarse-leaved perennial herb
Leaves: Large, coarse, hairy, broadly oval near the base, smaller up the stem
Flowers: Large, shaggy, bright yellow daisy-like heads with numerous narrow ray florets
Stem: Stout, branching, hairy
Root: Thick, aromatic, branching rhizome (the medicinal part)
Fruit: Small achene with a pappus
Flowering Period: July-August

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]

Grows in damp meadows, pastures, roadsides and woodland margins on moist, rich soils; native to Europe and Western Asia and naturalised in North America.[12]

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 root and rhizome are dug in autumn of the second or later year, when sesquiterpene lactone and inulin content is highest, then cleaned, sliced and dried.[12]

Parts: Root and rhizome
Season: Autumn, from second-year or older plants

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]

Elecampane root has a long European tradition, reflected in the old name 'elf dock', as a warming expectorant remedy for productive cough, bronchitis and chronic respiratory catarrh, and topically and internally as an antimicrobial for skin and wound infections.[12]

Preparations

Infusion[11]

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

Decoction[12]

Dried root simmered in water as a traditional expectorant and antimicrobial tea.

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.

Not documented

References

REF-0773, REF-0774, REF-0775, REF-0419, REF-1995, REF-1996, REF-1997, REF-1998, REF-1999, REF-2000
REF-1858, REF-0538, REF-1859, REF-1860, REF-1861, REF-1862, REF-1863, REF-1864, REF-1865, REF-1866, REF-1867

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

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. Gierlikowska, B., Gierlikowski, W., Bekier, K., Skalicka-Wozniak, K., Czerwinska, M.E. and Kiss, A.K (2019) 'Inula helenium and Grindelia squarrosa as a source of compounds with anti-inflammatory activity in human neutrophils and cultured human respiratory epithelium', Journal of Ethnopharmacology, 249, pp. 112311. doi:10.1016/j.jep.2019.112311 Preclinical
    https://doi.org/10.1016/j.jep.2019.112311
  2. Gao, S. and Wang, Q. and Tian, X.H. and Li, H.L. and Shen, Y.H. and Xu, X.K. and Wu, G.Z. and Hu, Z.L. and Zhang, W.D (2016) 'Total sesquiterpene lactones prepared from Inula helenium L. has potentials in prevention and therapy of rheumatoid arthritis', Journal of Ethnopharmacology, pp. 39--46. doi:10.1016/j.jep.2016.12.020 Preclinical
    https://doi.org/10.1016/j.jep.2016.12.020
  3. Wang, Q., Gao, S., Wu, G., Yang, N., Zu, X., Li, W., Xie, N., Zhang, R., Li, C., Hu, Z. and Zhang, W (2018) 'Total sesquiterpene lactones isolated from Inula helenium L. attenuates 2,4-dinitrochlorobenzene-induced atopic dermatitis-like skin lesions in mice', Phytomedicine, 46, pp. 78-84. doi:10.1016/j.phymed.2018.04.036 Preclinical
    https://doi.org/10.1016/j.phymed.2018.04.036
  4. Dao, T.T.P., Song, K., Kim, J.Y. and Kim, Y.S (2020) 'Igalan from Inula helenium (L.) suppresses the atopic dermatitis-like response in stimulated HaCaT keratinocytes via JAK/STAT3 signaling', Inflammation Research, 69(3), pp. 309-319. doi:10.1007/s00011-020-01322-4 Preclinical
    https://doi.org/10.1007/s00011-020-01322-4
  5. He, X., Zhao, W., Shao, B., Zhang, B., Liu, T., Sun, C., Huang, H., Wu, J., Liang, J. and Ma, X (2020) 'Natural soluble epoxide hydrolase inhibitors from Inula helenium and their interactions with soluble epoxide hydrolase', International Journal of Biological Macromolecules, 161, pp. 1465-1474. doi:10.1016/j.ijbiomac.2020.04.227 Preclinical
    https://doi.org/10.1016/j.ijbiomac.2020.04.227
  6. Buza, V., Niculae, M., Hanganu, D., Pall, E., Burtescu, R.F., Olah, N., Matei-Latiu, M., Vlasiuc, I., Iozon, I., Szakacs, A.R., Ielciu, I. and Stefanut, L.C (2022) 'Biological Activities and Chemical Profile of Gentiana asclepiadea and Inula helenium Ethanolic Extracts', Molecules, 27(11), pp. 3560. doi:10.3390/molecules27113560 Preclinical
    https://doi.org/10.3390/molecules27113560
  7. Zheng, X., Wu, Z., Xu, J., Zhang, X., Tu, Y., Lei, J., Yuan, R., Cheng, H., Wang, Q. and Yu, J (2021) 'Bioactive sesquiterpenes from Inula helenium', Bioorganic Chemistry, 114, pp. 105066. doi:10.1016/j.bioorg.2021.105066 Preclinical
    https://doi.org/10.1016/j.bioorg.2021.105066
  8. Nder, A.E (2021) 'Efficacy of methanol-water extract of Inula helenium root against oxidative DNA damage', Journal of Traditional Chinese Medicine, 41(2), pp. 293-300. Preclinical
    https://scholar.google.com/scholar?q=Efficacy%20of%20methanol-water%20extract%20of%20Inula%20helenium%20root%20against%20oxidative%20DNA%20damage
  9. Chun, J., Song, K. and Kim, Y.S (2018) 'Sesquiterpene lactones-enriched fraction of Inula helenium L. induces apoptosis through inhibition of signal transducers and activators of transcription 3 signaling pathway in MDA-MB-231 breast cancer cells', Phytotherapy Research, 32(12), pp. 2501-2509. doi:10.1002/ptr.6189 Preclinical
    https://doi.org/10.1002/ptr.6189
  10. Li, Y., Ni, Z., Zhu, M., Dong, M., Wang, S., Shi, Q., Zhang, M., Wang, Y., Huo, C., Kiyota, H. and Cong, B (2012) 'Antitumour activities of sesquiterpene lactones from Inula helenium and Inula japonica', Zeitschrift fur Naturforschung C, 67(7-8), pp. 375-380. doi:10.1515/znc-2012-7-804 Preclinical
    https://doi.org/10.1515/znc-2012-7-804
  11. Yan, Y.Y., Zhang, Q., Zhang, B., Yang, B. and Lin, N.M (2019) 'Active ingredients of Inula helenium L. exhibits similar anti-cancer effects as isoalantolactone in pancreatic cancer cells', Natural Product Research, 34(17), pp. 2539-2544. doi:10.1080/14786419.2018.1543676 Preclinical
    https://doi.org/10.1080/14786419.2018.1543676
  12. Kenny, C.R., Stojakowska, A., Furey, A. and Lucey, B (2022) 'From Monographs to Chromatograms: The Antimicrobial Potential of Inula helenium L. (Elecampane) Naturalised in Ireland', Molecules. doi:10.3390/molecules27041406 Traditional / reference
    https://doi.org/10.3390/molecules27041406
  13. Stojanovic-Radic, Z. and Comic, Lj. and Radulovic, N. and Blagojevic, P. and Denic, M. and Miltojevic, A. and Rajkovic, J. and Mihajilov-Krstev, T (2012) 'Antistaphylococcal activity of Inula helenium L. root essential oil: eudesmane sesquiterpene lactones induce cell membrane damage', European Journal of Clinical Microbiology & Infectious Diseases, 31(6), pp. 1015--1025. doi:10.1007/s10096-011-1400-1 Preclinical
    https://doi.org/10.1007/s10096-011-1400-1
  14. Cantrell, C.L. and Abate, L. and Fronczek, F.R. and Franzblau, S.G. and Quijano, L. and Fischer, N.H (1999) 'Antimycobacterial eudesmanolides from Inula helenium and Rudbeckia subtomentosa', Planta Medica, 65(4), pp. 351--355. doi:10.1055/s-1999-14001 Preclinical
    https://doi.org/10.1055/s-1999-14001

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.